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Here are some benchmark results for various SD card brands which were acquired with the new benchmark option of the CHDK. Maybe also see BenchmarkVideo60Sec.

The higher is the value, the higher is the speed [kb/s], the faster is the memory card.

Take them with a grain of salt: The first benchmark round sometimes shows too low numbers and there are some unknown variables (Which firmware version of the cam was used? How full/fragmented was the card? FAT16 or FAT32? Was the card original or fake?)

Always run the benchmark at least 2 times, add your results from the 2nd run here, do not report the values from the 1st run !

Speed (kb/s)
SD-card model, size Write Write Write Read
(RAW) (Mem) (64k) (64k)
A430
  Sandisk Ultra II, 1GB 4633 7447 3706 5302
 
A460
  Sandisk Extreme III, Class 6 (FAT16), Empty Card, v1.00f 4GB 10322 6606 4096 6206
 
A470
  Canon SDC-32M, MultiMediaCard, 32MB 1317 1332 966 3371
  Kingston, MicroSD Card(FAT 16), 2GB 8679 7927 5957 6425
  SanDisk,SD Card (2MB/s)(FAT16:), 1GB 2752 2682 2420 9002
  Sandisk Extreme III,SD Card(FAT 16), 2GB 11008 9830 6798 9002
 
A480
  EMTEC SDHC Class 4, 4GB 5051 5715 3665 9153
  SanDisk Ultra II SD Card, 2GB 10563 9035 6687 8953
  A-Data SDHC Class 10 (FAT32), 8GB 8681 5879 5936 8808
  Kingston SDHC Class 4 (FAT32), 8GB 7125 6864 5389 8714
  Patriot uSDHC Class 6 (FAT32), 4GB 7786 7021 6475 9102
  Sandisk Standard SD Card (FAT16), 2GB 7368 4856 3986 8904
 
A530
  A-Data, speedy, 1GB 2652 3103 2520 4790
  Canon, MultiMediaCard, 16MB 608 624 617 2189
  TakeMS, High Speed 60x, 2GB 4279 4934 2925 5720
  Transcend, TS2GSDC, 45x, 2GB 3343 4517 3132 5708
 
A540
  SanDisk Ultra II (FAT16: Low Level Format), 2GB 8336 10240 6277 5936
 
A560
  Qumo 100x (fat16), 2GB 9003 8533 6001 6068
  Transcend TS4GSDHC6, 4GB(fat16) 10718 8904 6770 7413
  Sandisk Ultra II, 4GB(fat 32) 10847 9309 6182 5748
 
A570 IS
  A-Data Turbo 150x (fat16), 2GB 7266 5462 4430 6125
  Kingston, 2GB 5423 5319 3783 5851
  Kingston elite pro 50X, 2GB fat16, factory formatted, Fw:1.01a 8741 8137 4748 5872
  Kingston elite pro 50X, 2GB fat16, formatted in camera, Fw:1.01a 8741 8031 5572 7481
  Lexar Pro 133x (fat16), 4GB 10718 10326 5872 6375
  Lexar Pro 133x (freshly formatted in camera), 2GB 10718 10413 7185 8151
  SanDisk 1.0GB (fat16), 1 GB 5905 5632 4370 5979
  SanDisk Extreme III 1.0 GB (fat16) 10929 10814 5560 6018
  Toshiba MicroSD SD-C02G MIJ (fat16), 2GB 5505 5585 5037 6062
  Transcend, 1 GB 3001 3200 3657 5979
  Transcend, 2 GB 3359 3134 3783 6527
  ATP 256MB 2663 2755 2244 4905
  Kingston 512MB 2285 2502 2278 6606
 
A590 IS
  Sandisk Extreme III (fat16), 2GB 11098 10971 7515 9153
  Sandisk Ultra II (fat16), 4GB 10265 8416 6379 8904
  Kingston SDHC Class6 (fat16), 4GB 7895 7589 5088 9002
  SanDisk Class 2 (fat16), 2GB 4279 4222 3515 9051
  PQI SDHC Class 6 (fat16), 4GB 7768 6788 5425 8274
  Patriot SDHC Class 6 (fat16), 4GB 7890 6864 5789 8489
  Kingston SD/2GB (fat16), 2GB 8486 7492 5893 8445
  Transcend SD/1GB (fat16), 1GB 4488 4165 3588 9002
  Corsair 60x (fat16), 2GB 3619 3551 4428 8578
  Samsung Memory Card Plus Class 6 MB-SP8G (fat16/fat32), 8GB 9181 9102 6325 8714
 
A610
  Canon, 16MB :) 1588 1602 1502 3319
  MicroCenter 2GB 2697 3134 2081 5120
  Kingston, 1GB (FAT16, Fw:E) 3546 4636 3091 5830
  Kodak 512MB (FAT16) 3469 6301 3766 5443
  Hama, 2GB (FAT16) 4396 4096 2815 5748
  SanDisk Extreme III, 2GB (FAT16, Fw:E) 6617 8302 6687 8233
  Transcend 150x, 4GB 6419 9035 4905 6068
 
A620
  starex 1gb 4138 4002 3280 6450
  Corsair 133x 2GB 9281 8969 4890 6045
  A-DATA, MyFlash Turbo 150x 2GB 8914 8246 4804 6136
  Kingston, 256MB 7033 7021 4106 6206
  ocz 150x, 1GB 7829 7927 4392 5957
  PENTAGRAM, HiSpeed PRO 1GB 4640 5056 4369 5649
  TwinMOS, Ultra-X 66x 1GB 4349 3938 2941 6001
  SanDisk Ultra-II 2.0GB 9281 9309 4748 6113
  SanDisk Extreme III 1GB 9681 9239 5104 6090
  Ultra Hi-SPEED 60X 2.0GB 3297 2904 1985 5354
  Transcend 150x 4gb 10116 9750 4563 6182
 
A630 (Digic II)
  Apacer High Speed 150x, 2GB (FAT16) 5999 8593 4641 5893
  SanDisk MicroSD, 1GB (FAT16) 4995 5144 4080 7621
  SanDisk Ultra II, 2GB (FAT16) 6945 9909 4721 6159
  SanDisk Ultra II, 4GB (FAT32) 7242 8774 4762 6277
  Silicon Power 80x, 1GB (FAT16) 4155 4915 2869 5789
  TakeMS HyperSpeed 133x, 4GB (FAT16, Fresh format) 6458 6942 4602 6606
  TakeMS HyperSpeed 133x, 4GB (FAT32, Fresh format) 4278 6144 5217 8233
 
A640
  A-Data Turbo SD 150x, 2GB (FAT16) 10033 9452 4563 6325
  SanDisk Extreme III, 2GB (FAT16) 10422 10052 7337 9544
  Dane-Elec, 4GB (FAT16) 5181 5228 3316 6113
  Dane-Elec, 2GB 2315 2349 2045 5957
  Memory master, 2GB 4435 3646 2968 5025
  Transcend Class 6, 8GB 9577 7538 3577 6045
  Transcend Class 2, 4GB (FAT16) (new) 6680 5994 3056 6023
  Kingston Micro HDSC 8GB Class 4 (FAT32) 5472 4708 2805 5708
  Kingston Micro HDSC 8GB Class 4 (FAT16 + FAT32) 4899 4856 3392 6425
  Lexar Premium Series SDHC 100x 4 GB 8779 5184 4357 6090
  Transcend 16 GB Class 10 9954 5796 3538 5851
  Sandisk Extreme 45 MB/s 300x Class 10 UHS1 9577 9452 3757 5748
  Transcend 8 GB Class 6 7950 6864 3585 5728
 
A650 IS (Digic III)
  Canon SDC-32M, 32MB 1676 1692 1573 3350
  Lexar, 1GB 8877 8969 6375 6606
  SanDisk, 2GB 4301 4452 3456 7217
  SanDisk Extreme III, 4GB FAT16 11145 10778 6253 8533
  SanDisk Ultra II, 4GB FAT16 (15 MB/s ?) 9543 8533 6159 9120
  Transcend TS4GSDHC6, 4GB FAT16 8344 6788 5443 6942
  Maxell SecureDigital, 2GB FAT16 8344 7680 7217 7249
  OCZ SDHC Class 6, 4GB FAT32 7751 6174 5936 7249
  Patriot Class 6, 16GB FAT32 8530 8137 4392 8856
 
A710 IS
  A-DATA microSD Trio, 2GB (Fresh format) 4570 4169 3422 8127
  A-DATA Speedy Duo, 2GB 2060 2125 1936 6023
  A-DATA Turbo 150x, 2GB (FAT16,Fresh format) 4665 4954 4116 8274
  Aldi microSD 20090507 2GB (Fresh format) 4840 4568 2849 5769
  Apacer Phot Series 2GB formatted 3227 3067 2815 5168
  Canon SDC-16M bundled 1899 1884 1632 3460
  Dane-Elec 2GB FAT16 5204 4781 4137 8110
  ExtreMeMory "ALLROUND" 2GB formatted 3740 3751 3465 5724
  Kingston 50x, 1GB (FAT16, Fresh format) 8038 7927 4464 5872
  Kingston Normal, 2GB (FAT16) 3274 3900 2618 5770
  Kingston Normal ca. 12/2008, 2GB 5058 4726 4369 8070
  Kingston elite pro 50X SD, 2Gb 9786 9102 4949 5979
  Kingston microSD, 512Mb 4055 4055 2069 5093
  Kingston miniSD, 512Mb 6385 6501 5168 8192
  Lexar Platinum II 60x, 1Gb (FAT16) 8336 8084 4501 5497
  Lexar Platinum II 60x, 1Gb (FAT32) 7379 7680 4452 5535
  PQI Hi-Speed 150x, 2GB 9003 8777 4721 5893
  Sandisk, 256Mb 1051 1059 1001 1548
  SanDisk Extreme III, 2GB (FAT 16) 10231 9830 6579 7692
  SanDisk Extreme III, 2GB 10469 10240 4589 6090
  Sandisk SDHC Class 2, 4GB (Fresh format) 5771 5342 4277 8110
  SanDisk Ultra II Plus, 2GB (Fresh format) 9578 9037 4360 5769
  SanDisk Ultra II, 2GB (Fresh format) 9187 8533 5789 8031
  SanDisk SDHC 100x Ultra II, 4GB (FAT16) 10348 8777 4015 6253
  Sycron 2GB full 2671 2884 3283 6942
  Transcend 80x, 1GB 8493 8416 4416 5851
  Transcend 150x, 2GB 9378 9239 4790 5809
  Transcend SDHC Class 6, 4GB 9578 8840 5708 8192
  Transcend 80X miniSD, 512Mb 7502 7105 4116 5071
 
A720 IS
  Canon, 16MB (bundled) 2254 1859 1754 3508
  A-DATA Speedy, 2GB (FAT16) 3435 3164 2532 5572
  ADATA SDHC 4GB Class6 (FAT16 fresh format) 9098 6501 5572 6633
  ByteStor, SD 1GB, 50x 7905 8060 6132 7021
  EMTEC, SD 2GB, 60x (FAT16 fresh) 8486 8073 7407 8672
  Kingston, 2GB Ultimate 10743 10326 7692 6742
  Patriot EP+, SD 2GB, 133x (FAT16 fresh format) 10743 8593 6325 6425
  Patriot SDHC 8GB Class6 (FAT16+FAT32 fresh format) 7318 7680 4735 6450
  SanDisk, SD 1GB, Ultra II 60x 8879 8840 5591 6606
  SanDisk, SD 2GB, Ultra II 60x (fresh format) 10743 9600 7123 8445
  SanDisk, SDHC 4GB, Ultra II 60x (FAT16 fresh) 10820 8718 5627 6715
  SanDisk, SDHC 8GB, Ultra II 10520 9239 7217 9002
  Sandisk, SD 2GB, Extreme III 133x (fresh format) 11058 10686 7594 8316
  Transcend, SDHC 8GB, Class 6 (FAT32, few images) 6823 5319 3616 6527
  Transcend, SD 4GB, Standard (FAT16 fresh format) 4454 3980 3623 5930
  Transcend, SD 2GB, 80x 7585 7629 5505 6476
  Transcend, microSD 2GB, Standard speed, MLC 5944 5358 5468 9153
  Dane-Elec 1GB 5205 4800 4464 6501
  Patriot LX 32 GB Class 10 SDHC 7594 8084 4985 6277
  Maxell 2 GB 5205 4800 4464 6501
  Sandisk Extreme 45 MB/s 300x Class 10 UHS1 10743 11070 6450 3967
 
A1000 IS
  Kingston, 4GB Class 4 (FAT16 Fw:B) 7810 7826 7123 9153
  Patriot, 2GB 133x (FAT16 Fw:B Fresh) 8765 7680 6301 9102
  Transcend, 4GB 133x (FAT16 Fw:B) 5774 6334 5591 7413
 
A1200
  Sandisk SDHC 4GB Class 4 (FAT16) 4886 4055 4005 7249
  Transcend SDHC 16GB Class 10 (FAT32) 10653 9035 8031 8316
 
G7 (Digic III)
  Transcend 150x, 2GB 18868 16384 9929 8316
  Kingston, 2GB 5643 5141 4116 6425
  SanDisk Extreme III, 2GB (FAT16, Fw:I, Fresh Format) 20390 18070 8808 8031
  SanDisk SD 2GB (FAT16) 5267 4895 3585 6687
  GoodRam SDHC 4GB (FAT32) 5879 5742 4721 8316
  pq1, SDHC 8GB ,Class 6, Fat 32 12155 13212 4735 6333
  Silicon Power, 80x, 2GB 6048 5535 3828 5688
  PNY, SD 1 GB (Fat 16, Fw:1.00I) 5935 5296 3828 6527
  SanDisk Extreme III, 4GB (FAT16, Fw:1.00I, Fresh Format) 20724 21186 5425 6553
  SanDisk MicroSD, 256MB (FAT16, Fw:1.00I, Fresh Format) 2778 2247 2247 6301
  eFilm DDSDFLS1-1GB (FAT16, Fw:1.00I) 5746 5120 3640 6400
  Transcend SDHC CLASS 10 4GB (FAT16, Fw:1.00I, Fresh Format) 10113 4744 4861 6660
 
G9 (Digic III)
  Sandisk Extreme III 8GB SDHC 30 mb/s (FAT32) 19576 17808 6913 7217
  Twinmos SD Ultra-X 150x, 2GB (FAT32) 16779 17066 12412 9256
  LG SDHC 8GB (FAT32) 13881 14124 8031 9256
  Canon MMC-32MH 32MB (FAT32) 3478 3490 3330 7185
  Toshiba Class 10 SDHC 8GB (FAT32) (6mo old) 18851 18618 6425 6742
  Sandisk Extreme III 4GB SDHC 20 mb/s (FAT32) 19328 15958 7314 9002
  Sandisk Ultra II 16gb SDHC 15 mb/s (FAT32) 12118 9102 6253 9002
  Adata Class 6 SDHC 8GB (FAT32) 19576 13653 5535 7380
  Toshiba Class 10 SDHC 8GB (FAT32) (NEW-JAPAN) 18178 12934 6229 7092
  Transcend 8GB Class4 (china) 5593 5560 4538 6884
  Transcend 8GB Class10 (korea) 20917 9035 5516 6770
  Sandisk Extreme III 4GB Class4 20mb/s(new) 19576 15554 9694 9153
  Sandisk SDHC Class 2, 4GB (empty) 5784 4954 4563 7123
 
G11 (Digic IV)
  Sandisk Extreme III 8GB SDHC Class 6 (FAT32) 21206 17066 7992 9637
  Panasonic 2GB SD Class 2 (FAT16) 9425 7402 3309 9102
 
S2 IS (Digic II)
  Apacer 60x 1GB (FAT16, Fw:E, fresh format) 5394 8137 3996 5336
  Corsair 133x 2GB (FAT16, Fw:E, fresh format) 6113 9035 4464 5809
  GOODRAM, 2GB (FAT16, Fw:G) 3396 4151 2781 5010
  GOODRAM 100x, 2GB (FAT16, Fw:G) 5782 8593 3873 5728
  Imation 120X (FAT16, Fw:F) 1778 2118 2730 5872
  Kingston 50x, 2GB (FAT16, Fw:I) 5533 9452 3837 5669
  Kingston 120x, 2GB (FAT16) 2827 8084 2310 3456
  Memory Master, 2GB (FAT16, Fw:E) 3300 4680 2710 5800
  Memory Master, 2GB (FAT32, Fw:E) 3400 4950 3030 5890
  S3+ (FAT16, Fw:F) 5394 7927 3873 5830
  SanDisk 1GB (FAT16, Fw:E) 4195 4082 2973 5914
  SanDisk Extreme III, 2GB (FAT16, Fw:E) 6520 9640 4280 5730
  SanDisk Extreme III, 2GB (FAT32, Fw:E) 6080 9030 3430 7900
  SanDisk Ultra II, 512MB (FAT16, Fw:F) 5782 8593 4134 5669
  SanDisk Ultra II, 2GB (FAT32, Fw:G) 7185 9102 5217 7185
  Toshiba 1GB (FAT16, Fw:E, fresh format) 2228 2628 1934 4890
  Transcend 80x, 1GB (FAT16, Fw:F) 4279 6113 3413 5088
  Transcend 80x, 1GB (FAT16, Fw:F, fresh format) 5054 7492 3749 5957
  Transcend 150x, 2GB (FAT16, Fw:F, fresh format) 5782 9035 4116 6023
  Transcend 150x, 4GB (FAT16, Fw:F) 5835 8969 4392 5728
  TwinMOS Ultra-X 150x, 2GB (FAT16, Fw:E) 5835 9170 5443 7185
 
S3 IS (Digic II)
  A-Data SDHC 2.0, class 2, 4GB 4327 4137 2936 5806
  A-Data SDHC, class 6, Turbo, 4GB 6783 6083 4073 5957
  AmazonBasics Class 10, 4GB 10315 7492 4440 7692
  Apacer SDHC, class 4, 16GB 7926 6864 5649 8110
  Corsair 133x, 2GB (FAT32 ) 8964 8904 4790 5957
  Dane-Elec 133x, 2GB (Fresh Format) 10040 9830 4920 6277
  Extrememory 100x, 2GB 9183 9675 4890 ????
  Kingston 50x Elite Pro 8460 8904 4576 5748
  Kingston Micro-SD 1GB 3691 3723 2844 5072
  Kingston SD 2GB 4302 4602 3011 5789
  Lexar Premium Class 4 60x SDHC 4GB (FAT16) 8185 6501 3837 5591
  Lexar Pro Class 6 133x SDHC 4GB (FAT16) 10315 10072 4589 6229
  Lexar SD, 2GB (FAT16) 7103 5936 2978 5979
  Panasonic 2GB Class 6 10175 9452 4905 6375
  Peak Extreme 150x, 4GB (Fresh, FAT16) 8556 8553 4035 6277
  PQI Hi-Speed 60, 2GB 3012 2811 2646 4905
  SanDisk 1.0GB (no other markings) 5340 4895 3420 5809
  SanDisk Ultra II, 2GB 9531 8969 4480 5748
  SanDisk 4GB (FAT16) - Fake? 5837 4636 3343 5809
  SanDisk Extreme III SDHC, 4GB 9412 8593 6090 7992
  TakeMS Micro-SD, 1GB 3568 3925 2859 5789
  Toshiba SD High-Speed, class 4, 2GB 4858 4636 2995 5728
  Transcend 80x, 2GB 9296 9170 4334 6001
  Transcend 150x, 1GB 6491 6366 3790 5251
  Transcend 150x, 2GB 8964 8969 4694 5851
  Transcend 150x, 4GB (FAT16) 9412 9170 4776 5669
  Transcend 150x, 4GB (FAT16) (Fresh Format) 10175 9990 6687 7620
  Transcend 150x, 4GB (FAT32) (Fresh Format) 8097 8593 4667 5669
  Transcend MicroSD Class6, 2GB (FAT16) 7103 6501 3828 6045
  Transcend MicroSDHC Class6, 4GB (FAT32) 7037 6334 6633 7764
  Transcend SDHC Class 6, 4GB 7455 5879 3900 ????
  Transcend SDHC Class 6, 16GB 9531 6366 4005 5979
  Transcend SDHC Class 6, 16GB (multiboot) 10040 7271 3392 6375
  Platinum 2GB 6001 3348 3723 6001
 
S5 IS (Digic III)
  A-Data Speedy, 1GB 3811 3357 3910 7281
  Apacer 4GB SDHC (FAT16, avg. of 3 measurements) 6246 5551 3970 9309
  Canon SDC-32M, 32MB 1587 1587 1472 3463
  Canon SDC-32M 32MB (FAT12, Fresh Format) 1530 1534 1440 3471
  Crucial, 4GB (FAT16) 11608 10502 5120 6001
  Kingston SDHC Class 6, 8GB 7768 8137 3485 6450
  Kingston Ultimate 120x 2GB (FAT16, Fresh Format) 20610 19200 7692 6113
  Lexar '60x' Premium 2GB 11221 8192 5669 8761
  Lexar Premium 4GB SDHC (FAT16/FAT32, Fresh Format) 19421 19200 12800 9416
  Panasonic 8MB (FAT12, Fresh Format) N/A N/A 1094 3183
  PNY/Polaroid 1GB 5905 5437 3783 6826
  Sandisk Extreme III 4GB (FAT16) 21487 15958 6553 7062
  Sandisk Ultra II 4GB 15Mb/s Class 4 (New-Straight out of package) 18034 12668 8192 9153
  Sandisk UltraIII 2GB (formatted in Camera) 17117 16832 5497 6633
  Sandisk UltraIII 2GB (formatted in PDA) 19802 15753 5769 6855
  SanDisk Extreme Class 10 30Mb/s 4GB (FAT16) 21487 8777 6475 9002
  SanDisk Extreme Class 10 30Mb/s 16GB (FAT32) 21487 14985 10435 9002
  Transcend Plain 2GB 6312 5251 4476 8761
  Transcend SDHC Class 6, 4GB 7480 6433 4934 7249
  Transcend 133x, 4GB (FAT16, 64K Clusters), avg. of 5 measurements 9546 8705 4299 6445
 
SD400/Ixus50 (Digic II)
  Canon, SD 16MB (FAT16) 1407 1405 1258 4331
  Corsair 133x, 1GB (FAT16), Fresh format 5999 8840 5516 7839
  SanDisk, SD 256MB (FAT16) 3131 3158 2474 5688
  EMTEC 60x, SD 2GB (FAT16) 2325 2755 2119 5669
 
SD630, also called Digital IXUS65, IXY Digital 80 (Digic II)
  Eye-Fi Share, 2GB (FAT16) 1854 1914 396 5936
  Verbatim, 2GB GO 6605 5965 3600 5748
 
SD700 (Digic II)
  PQI Hi-Speed 150 512MB 8859 8840 4694 5914
  Ritz Big Print Digital Film by Lexar 2GB 2468 2805 3336 6277
  Sandisk Ultra II, 1GB (FAT16) 9412 8777 4266 5872
  Sandisk Ultra II, 2GB (FAT16) 10315 9035 6068 7447
  Sandisk Extreme III 2GB (FAT16) 9779 9525 4804 5851
 
SD800 IS
  SanDisk Ultra II (FAT16: Low Level Format), 2GB 1449 1757 1822 5893
  Transcend TS8GSDHC6-S5W (FAT32), 8GB 8493 7358 7123 7515
 
SD850IS /Ixus950 (Digic III)
  Canon, 32MB 1644 1517 1404 3362
  Lexar Platinum II, 2GB 8558 6642 3929 5936
  Microcenter Generic, 2GB (not 60x) 3914 3723 3657 5268
  OCZ, 2GB/150x 10977 8653 5728 5957
  Patriot, 2GB/extreme 133x 11098 8848 5769 6001
  Pretec, 512MB/133x 11743 11930 8070 8192
  Sandisk, 4GBsdhc class 2 5549 5184 3957 5914
  Sandisk Extreme SDHC, 4GB 21487 9600 7217 8110
  Toshiba, 8GBsdhc class 4 11881 9909 6553 7839
  Transcend, 2GB 5549 5413 3783 5979
 
SD1000/Ixus70 (Digic III)
  Canon SDC-32M, 32MB 1301 1301 1197 3406
  Kingston, 1GB 3705 3780 4428 7413
  Sandisk, 1GB 3041 3679 3336 5872
  Kingston SDHC Ultimate X G2 16GB (FAT32) 5234 4974 2564 3364
  Dane-Elec, 2GB 5771 5742 3585 5553
  SanDisk Ultra II MiniSD W/Adapter, 2GB 10847 10502 6971 8151
  SanDisk Extreme III 2GB (FAT16) 19572 19819 10369 8110
  Dane-Elec SDHC 8GB (FAT16) 12166 9239 7092 8151
  SanDisk Ultra II 2GB SD (FAT16) 16673 14456 6884 5830
  Lexar Platinum II 2GB (FAT16) 10847 10326 7413 7481
  Twinmos SD Ultra-X 150x, 2GB (FAT32) 16673 16384 10113 8192
  Transcend 4 GB Class 6 microSDHC (FAT32) 12166 9035 8070 8110
  SanDisk Extreme 8GB 30MB/s SDHC Class 10 (FAT32) 19156 18618 7062 7876
 
SD1100 (Digic III)
  Kingston Class 4, (4GB FAT16) 6870 5688 4934 8192
  A-Data 8GB "Turbo", (4GB FAT16), Fresh format 13647 9380 8808 9002
  OCz Gold 150x, 16GB, (4G FAT16), Fresh format 14026 11484 9470 9002
  SanDisk Extreme III 4GB (FAT16) 20610 14124 6277 6375
  SanDisk Ultra II, 2GB (FAT16) 9475 8530 6163 8048
 
SD750/Ixus75 (Digic III)
  Kingston elite pro 50X, 1GB 13641 14628 6425 6045
  Sandisk Ultra II SD Plus, 8GB 17653 11815 6913 5979
  Sandisk Ultra II, 2GB 10592 9452 6971 8070
  Sandisk Ultra II SD, 16GB (new Class 2 version) 18007 11930 6301 5893
 
SD780/IXUS100 (Digic IV)
  No name mircoSD, 4GB (FAT16) 12144 10240 4949 7031
 
SD870IS/Ixus860 (Digic III)
  Kingston, MicroSD Card 2GB (FAT 16), Fresh format 5024 4800 4116 6579
  Verbatim Premium, 4GB (FAT16) 10630 9170 6068 6501
  Corsair 133x, 1GB (FAT16), Fresh format 15537 15360 10850 9362
  Corsair 60x, 2GB (FAT16), Fresh format 5975 5015 4654 8761
  Canon SDC-32M, 32MB, Fresh format 1476 1494 1124 3616
  Transcend SDHC 8GB Class6, Fresh format 9901 7979 5425 6325
  Eye-Fi Explorer, 2GB (FAT16) 1984 2061 464 8623
  Dane-Elec, 2GB (FAT16) 3482 3451 3757 7585
  Dane-Elec 133Xs, 2GB (FAT16) 16556 15958 11221 9362
  compratec.com, 4GB (FAT16) 20198 16605 7764 6687
  SanDisk Ultra II Class 4 (15MB/s), 4GB (FAT) 15780 12668 7620 6425
  PATRIOT memory Class 6 , 16GB (FAT32) 11347 10971 6770 9153
  VERBATIM MicroSD HC Class4, 8GB (FAT32) 6515 5461 3449 8856
  SANDISK Micro SD HC Class2, 8GB (FAT32) (given with HTC phone) 13288 9525 4949 6375
  Transcend SD HC Class6, 4GB (FAT16) 10305 7314 7692 9309
  PANASONIC Silver SD HC Class4, 16GB (FAT32) 8278 8840 6113 9153
  Sandisk Extreme III, 8GB (FAT32) 19421 14124 6253 6501
  Lexar Professional Class 6 133x 8GB 19421 17554 8623 9256
 
SD950 / Ixus960IS (Digic III, DryOS, 1.00d)
  No name (TCM), 256MB SD (FAT16), Fresh format 11568 11273 7123 7481
  Kingston (SD-M02G), 2GB SD (FAT16), Fresh format 5941 5228 4501 7347
  extrememory premium (card 1), 2GB SD (FAT16), Fresh format 7135 6788 5072 9204
  extrememory premium (card 2), 2GB SD (FAT16), Fresh format 4558 4388 3336 7413
  extrememory premium, 4GB SD (FAT16), Fresh format 8298 7927 4995 7217
  Sandisk Extreme III (30MB/s), 4GB (FAT32) 18621 15753 8316 8578
  Sandisk Extreme III, 4GB (FAT32) 18397 17554 4776 6633
  Sandisk Ultra II (15MB/s Class 4), 8GB (FAT32) 15118 12668 8110 8904
  Transcend, 8GB SDHC Class 10 (FAT32), Fresh format 10248 7021 7001 8274
  Transcend (card 1), 4GB SDHC Class 6 (FAT16), Fresh format 10678 10778 6687 6687
  Transcend (card 2), 4GB SDHC Class 6 (FAT16), Fresh format 9788 9600 6660 9470
 
SX1 IS (Digic IV)
  Transcend SDHC, 16GB Class 6(TS16GSDHC6) 8472 8904 6045 9637
  Panasonic SDHC, 4GB Class 6 13069 14628 9470 14124
  Panasonic SDHC, 8GB Class 10 (RP-SDW08G) 11091 12288 2748 13212
  Sandisk Ultra2 SDHC, 8GB Class 6 11165 10326 6001 10638
  Platinum SDHC, 16GB Class 6 12396 18493 4815 9525
  Transcend SDHC, 4GB Class 6 (FAT16) 9162 9990 7092 14371
 
SX10 IS (Digic IV)
  SanDisk Extreme III, 4GB 30MB/s 14385 18340 9115 9113
  Kingston Ultimate,2GB,133x(20MB/s) 16069 20144 9694 7413
  Transcend SDHC, 4GB Class 2 (FAT16) 5678 4372 2672 7876
 
SX100 IS (Digic III)
  SanDisk Extreme III, 2GB (FAT16) 11098 9909 7728 9002
  OCz Gold 150x, 16GB, (Dual partition FAT16/32), Fresh format 9999 8653 5285 9204
  PQI Hi-Speed 150, 2GB (FAT16) 9999 9752 7481 8714
  MicroSD 2GB, fat16, FW:c 6964 6864 6068 9153
  Lexar MicroSD 2GB, fat16 FW:c 6600 5585 5516 6527
  Sandisk Ultra II MicroSD 1 GB, fat16, FW:c 10201 10872 6942 6501
  Pny Optima SDHC 80x 4GB fat32, FW:c 8781 7402 6113 6475
  Transcend SDHC, 8GB Class 10, FAT16/32, FW:c 6432 6113 3114 5025
 
SX110 IS (Digic III)
  No name mircoSD, 2GB (FAT16) 3241 2799 2000 6136
  SanDisk Ultra II, 8GB SDHC (FAT32) 10637 9452 5389 7123
  Kingston, 2GB MicroSD (FAT16) 8681 7826 5302 7281
  Kingston, 4GB SDHC class 4 (FAT32) 5553 5389 3303 7092
  Sandisk, 2GB SD class 2 (FAT16) 6320 5823 4654 7217
  Lexar Professional 133x, 8GB SDHC class 10 (FAT32) 10789 6571 7692 9416
  Wintec, 16GB SD class 10 (FAT32) 10489 5907 5688 8668
 
SX150
  Transcend 16 Gb Class 10 10059 7185 6884 7185
  Sandisk Extreme 45 MB/s 300x Class 10 UHS1 18322 19504 9869 7314
  Transcend SDHC 4 Gb Class 2 6598 5715 4476 9416
  GoodRAM 16 Gb Class 10 SDHC (FAT32) 12142 12412 7876 7953
 
SX20 IS (Digic IV)
  Verbatim SD HC Class 4, 4GB Go 6092 6113 4890 9752
  PQI Hi-Speed 133, 512Mb (FAT), Fresh format 16560 16605 13768 9810
  Transcend 8Gb, class 6 (FAT32), Fresh format 12919 11070 3531 7217
 
SX200 IS (Digic IV)
  Sandisk Ultra2 SDHC, 8GB Class 6 11529 10685 5630 9051
  Sandisk ExtremeIII 30Mbit Edition SDHC 16GB Class 6 18588 19200 11702 8845
  Medion SD, 1GB 5685 5535 4788 7839
  Silicon Power 16GB SDHC Class 10 (FAT32) 17865 8246 7550 8263
  Panasonic SDHC 4GB (FAT16) 8886 8192 5789 7914
  Treveler (Aldi) SDHC 4GB (FAT16) 11906 9752 5516 7764
  Toshiba 8GB SDHC Class 10 (8MB FAT16 + 7.6GB FAT32) 17024 16832 8151 8274
  Transcend 133x SD-Karte 2GB (FAT16) 6414 5560 4322 8668
  Nokia microSD 2GB (FAT16) 7751 6301 4563 7801
  Teamgroup 8GB SDHC Class 10 (2MB FAT16 + 7.6GB FAT32) 13394 12538 4833 6855
 
SX230 HS (Digic IV)
  Dane-Elec SDHC 4GB Class 4 (chdk:101b-0.9.9-1402) 5292 3816 3500 14499
  Sandisk Extreme HD Vid (30mb/s) SDHC 32GB Class 10 (FAT32) chdk:101b-0.9.9-1402 21724 17554 11538 16718
  Sandisk Extreme HD Vid (30mb/s) SDHC 4GB Class 10 chdk:101a-1.1.0-967 21724 19200 15753 17066
  Kingston SD 2GB (chdk:101b-0.9.9-1402) 5593 5184 5168 12603
  Sandisk Extreme HD Video (20MB/s) SDHC 4GB Class 6 20991 9525 6159 12412
  Transcend SD 1GB 2261 2336 3039 9990
 
SX240 HS (Digic V)
  Transcend SDHC 8GB Class 10 (chdk:100a-1.2.0-2171) 11010 12412 8274 15906
 
SX260 HS (Digic V)
  SanDisk Ultra SDHC 16 GB Class 10 (chdk:100c-1.1.0-2383) 11772 10072 5268 18204
  SanDisk Extreme 45MB/s SDHC 16 GB UHS-I (chdk:100c-1.1.0-2702) 21765 21942 13768 17617
  SanDisk SD 1 GB (chdk:100c-1.1.0-2702) 5505 5636 5088 10051
  Transcend SDHC Class 10 UHS-1 16GB (chdk:101a-1.3.0-3054) 14623 13072 8402 17617
  Sony 94MB/s SDHC Class 10 UHS-1 16GB (chdk:100c-1.2.0-3155) 21032 19819 12226 17246
  Sony 40MB/s SDHC Class 10 UHS-1 32GB (chdk:100c-1.3.0-3157) 16713 18070 15031 18832
 
SX510HS
  SanDisk Ultra SDHC I 40 MB/s class 10 CARD A 16GB 12717 21557 14371 10369
  SanDisk Ultra SDHC I 40 MB/s class 10 CARD B 16GB 10744 12800 9362 10240
  SanDisk Ultra SDHC I 40 MB/s class 10 CARD C 16GB 12717 21557 14499 10369
  Kingston micro SDHC class 4 SDC4 C08G 8GB 3338 3413 2795 9204
  MICRO SD UNBRANDED 2GB 4985 3481 2672 9637
  MYMEMORY.COM SD HC CLASS 10 32GB 11983 7271 9694 9694
  kingston I3 SDHC 90R 80W sda3/ 32GB 8023 5077 6277 9416
  kingston I3 SDHC 90R 80W sda3/ 32GB after format in camera 12139 9309 11787 9204
 
TX1 (Digic III)
  Canon MMC-32MH (came with TX1), 32MB, Fresh format 3204 3242 2767 8359
  Canon SDC-32M (came with A470), 32MB, Fresh format 1610 1425 1286 3357
  Transcend Class 6, 4GB 10003 7826 7347 11702
  A-Data Class 6, 16GB, Fresh format 13438 8969 5979 9869
  A-Data "Turbo" Class 6, 16GB 9187 11702 6687 10176
  A-Data "Turbo" Class 6, 8GB 14759 11702 7728 9810
  MUT SD micro, 2GB (died later) 12004 8777 6068 10240
  Sandisk Extreme 3, 4GB 20462 15170 7801 10176
  Sandisk MicroSDHC Class 2, 4GB 13438 8840 6687 9869
 
Ixus 1000 HS (Digic IV)
  Intenso Class 4, 4 GB, Fresh format 6275 6269 3632 9581
  Panasonic SD Class 4 30 MB/sec (LOL but stand on package.PC not faster)), 2 GB, Fresh format 8550 5796 7092 15456
  San Disk Ultra Class 4 15 MB/sec, 8GB 11359 11170 9153 16710
 


The quickest Digic II speeds are 74X, 71X, 51X, 63X. The quickest Digic III speeds are 143X, 132X, 85X, 78X. The quickest Digic IV speeds are 141X, 113X, 53X, 64X. (extracted 2011.08.03 with neooffice)

Speed (Kb/s)
SD-card model, size Write Write Write Read
(RAW) (Mem) (64k) (64k)
Maximum
  Digic II 11145 10778 7728 9544
  Digic III 21487 19819 12800 11702
  Digic IV 21724 19200 15753 17066
  Digic V 21765 21942 15031 18832
 
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