Memory card speeds

On this pages You can find memory card speed writes times submitted by other a-mount DSLR users. This data aren't scientific and are prone to errors. However, as the number of submitted speeds for one card increase, it's likely that the final results will be very reliable.

On October 9, 2008, robgalbraith.com has started providing memory card tests for a900.
Please use it as the most reliable memory card performance reference !

memory card type	card model	all models a900/a700/a350/a300/a200 7D/5D/a100	firmware	1 raw MB/s	raw size (MB)	awg write time (sec)	total inputs

memory card
type

card model

all models
a900/a700/a350/a300/a200
7D/5D/a100

CF Type I	Sandisk Extreme IV 8GB (45MB/s)	a700	4.00	37,55	18,40	0,49	1
CF Type I	Lexar 8GB Profesional UDMA 300X	a700	2.00	36,80	18,40	0,50	1
CF Type I	Sandisk Extreme IV 4GB (45MB/s)	a700	4.00	36,80	18,40	0,50	1
CF Type I	Sandisk Extreme IV 4GB	a700	3.00	36,40	18,20	0,50	1
CF Type I	Sandisk Extreme IV 8GB (45MB/s)	a900	1.00	35,86	35,50	0,99	1
CF Type I	Lexar 8GB Profesional UDMA 300X	a700	3.00	34,62	18,00	0,52	1
CF Type I	Sandisk Extreme IV 8GB	a900	1.00	33,18	35,50	1,07	1
CF Type I	Lexar 8GB Profesional UDMA 300X	a900	1.00	32,71	35,00	1,07	1
CF Type I	Kingston Ultimate 266X 16GB	a900	1.00	32,18	35,40	1,10	1
CF Type I	Sandisk Extreme IV 4GB	a900	1.00	30,52	35,55	1,17	2
CF Type I	Kingston Ultimate 266X 16GB	a700	4.00	30,33	18,20	0,60	1
CF Type I	Transcend 300x 16GB SLC UDMA (TS16GCF300)	a700	3.00	30,15	18,19	0,60	2
CF Type I	Sandisk Extreme IV 4GB	a700	4.00	29,50	17,70	0,60	1
CF Type I	Sandisk Extreme IV 4GB	a700	1.00	26,07	18,25	0,70	2
CF Type I	Sandisk Extreme III 16GB (30MB/s)	a900	1.00	25,91	35,50	1,37	1
MS PRO	Sony HG Duo 1GB	a700	1.00	24,67	18,50	0,75	1
MS PRO	Sony HG Duo 4GB	a900	1.00	23,05	35,50	1,54	1
CF Type I	Adata 8GB 266X	a700	3.00	21,78	19,00	0,87	1
CF Type I	Sandisk Extreme III 4GB	a100	1.10	19,27	8,48	0,44	1
CF Type I	Sandisk Extreme III 2GB	a700	4.00	18,22	18,40	1,01	1
CF Type I	Sandisk Extreme IV 2GB	a700	2.00	14,96	18,40	1,23	1
CF Type I	Sandisk Extreme III 4GB	a700	1.00	14,82	18,08	1,22	1
CF Type I	Transcend 133x 16GB (TS16GCF133)	a700	4.00	14,63	18,00	1,23	1
CF Type I	Transcend 133x 16GB (TS16GCF133)	a700	1.00	14,58	15,20	1,04	2
CF Type I	Sandisk Ultra II 4GB	a100	1.00	14,29	10,00	0,70	1
CF Type I	Transcend 133x 32GB (TS32GCF133)	a700	3.00	14,09	17,75	1,26	1
CF Type I	Sandisk Extreme III 2GB	a900	1.00	13,98	35,50	2,54	1
CF Type I	Sandisk Extreme III 2GB	a100	1.00	13,81	8,10	0,59	3
CF Type I	Sandisk Extreme III 1GB	a700	1.00	13,70	18,50	1,35	1
CF Type I	Sandisk Extreme III 2GB	a100	1.10	13,62	7,82	0,57	3
CF Type I	Sandisk Extreme III 1GB	a900	1.00	13,58	35,50	2,62	2
CF Type I	Sandisk Extreme III 1GB	a700	2.00	13,48	18,20	1,35	1
CF Type I	Lexar 2GB 133X WA	a900	1.00	12,96	35,00	2,70	1
CF Type I	Sandisk Extreme III 4GB	a700	3.00	12,86	18,00	1,40	1
CF Type I	Sandisk Extreme III 4GB	a700	2.00	12,73	18,20	1,43	1
CF Type I	Lexar 1GB 133X WA	a100	1.10	12,62	8,20	0,65	1
MS PRO	Lexar 4GB Platinum II MS PRO Duo	a700	3.00	11,02	17,75	1,61	1
CF Type I	Sandisk Ultra II 2GB	a700	1.00	10,98	18,20	1,66	1
CF Type I	Ritek/Ridata 150X PRO 4GB	a700	3.00	10,63	18,60	1,75	1
CF Type I	Sandisk Extreme IV 8GB	a700	2.00	10,51	18,40	1,75	1
CF Type I	Sandisk Ultra 1GB	a700	1.00	10,34	18,50	1,79	1
CF Type I	Sandisk Ultra II 1GB	a900	1.00	10,26	35,50	3,46	1
CF Type I	Sandisk Ultra II 2GB	a700	2.00	10,00	18,20	1,82	1
CF Type I	Transcend 120X 4GB	a700	3.00	9,91	18,55	1,87	1
CF Type I	Sandisk Ultra II 4GB	a700	2.00	9,68	18,20	1,88	1
MS PRO	Sandisk Ultra II 2GB	a700	2.00	9,38	18,20	1,94	1
CF Type I	Sandisk Ultra II 4GB	a700	1.00	9,37	17,70	1,89	1
CF Type I	Adata 8GB 120X	a700	3.00	9,24	17,75	1,92	1
CF Type I	Adata 4GB 120X	a700	3.00	9,10	18,86	2,07	1
CF Type I	Sandisk Extreme III 1GB	5D	1.00	8,97	8,81	0,98	12
CF Type I	Adata 1GB 120X	a700	1.00	8,97	8,70	0,97	1
CF Type I	Lexar 8GB Profesional UDMA 300X	5D	1.00	8,96	8,96	1,00	1
CF Type I	Sandisk Extreme III 4GB	5D	1.00	8,86	8,94	1,01	1
CF Type I	Sandisk Extreme III 2GB	5D	1.00	8,34	8,70	1,04	3
CF Type I	Lexar 512MB 40X WA	a700	1.00	8,30	18,50	2,23	1
CF Type I	Sandisk Extreme III 8GB	5D	1.00	8,29	8,70	1,05	1
CF Type I	Sandisk Ultra II 2GB	a100	1.00	8,20	8,50	1,04	1
CF Type I	Adata 8GB 266X	a100	1.10	8,19	7,70	0,94	2
CF Type I	Transcend 133x 16GB (TS16GCF133)	5D	1.00	8,15	8,80	1,08	1
CF Type I	Sandisk Ultra II 2GB	a900	1.00	8,14	35,00	4,30	1
CF Type I	Sandisk Ultra II 2GB	5D	1.10	7,95	8,94	1,13	1
CF Type I	Kingston Elite Pro 1024MB	a700	4.00	7,39	18,40	2,49	1
CF Type I	Sandisk Extreme III 512MB	5D	1.00	7,25	8,70	1,20	1
CF Type I	Sandisk Extreme III 1GB	a100	1.10	7,23	5,78	0,80	1
CF Type I	Lexar 2GB 80X WA	a900	1.00	7,22	35,50	4,92	1
CF Type I	Lexar 1GB 80X WA	a100	1.10	7,18	10,03	1,40	1
CF Type II	Hitachi Microdrive 4GB	a100	1.00	7,14	10,00	1,40	1
CF Type I	Lexar 4GB Profesional UDMA 300X	5D	1.00	6,83	8,91	1,31	3
CF Type I	Lexar 1GB 80X WA	5D	1.00	6,82	8,70	1,28	2
CF Type I	Kingston Elite Pro 2GB	a700	3.00	6,81	18,86	2,77	1
CF Type I	Sandisk Ultra II 2GB	5D	1.00	6,80	8,72	1,28	6
CF Type I	Sandisk Ultra II 512MB	5D	1.00	6,73	8,72	1,30	4
MS PRO	Sony Duo 8GB	a700	4.00	6,73	17,70	2,63	1
CF Type I	Lexar 2GB 80X WA	5D	1.00	6,69	8,70	1,30	1
CF Type I	Sandisk Extreme III 4GB	7D	1.10	6,63	8,71	1,31	4
CF Type I	Kingston Elite Pro 1024MB	a900	1.00	6,60	35,00	5,30	1
CF Type I	Sandisk Ultra II 1GB	a200	1.00	6,60	4,40	0,67	1
CF Type I	Sandisk Ultra II 1GB	5D	1.00	6,46	8,70	1,35	3
CF Type I	Ritek/Ridata 150X PRO 4GB	a100	1.10	6,35	10,03	1,58	1
CF Type I	Transcend 120X 2GB	a100	1.00	6,12	9,79	1,60	1
CF Type I	Transcend 120X 4GB	a100	1.00	6,12	9,79	1,60	1
CF Type I	Sandisk Extreme III 2GB	7D	1.10	5,92	8,71	1,47	13
CF Type I	Kingston Elite Pro 1024MB	a100	1.00	5,81	9,88	1,70	1
MS PRO	Sony Duo 8GB	a700	2.00	5,80	18,40	3,17	1
CF Type I	Sandisk Extreme III 1GB	7D	1.10	5,75	8,72	1,52	19
CF Type I	Sandisk Extreme III 8GB	7D	1.10	5,59	8,75	1,57	2
CF Type I	Sandisk Ultra II 4GB	5D	1.00	5,51	8,72	1,58	2
CF Type I	Transcend 120X 4GB	a100	1.10	5,45	8,61	1,58	1
CF Type I	Kingston Ultimate 266X 16GB	7D	1.10	5,44	8,70	1,60	1
CF Type I	Transcend 120X 8GB	a100	1.00	5,38	10,00	1,86	1
CF Type I	Lexar 1GB 40X WA	a700	3.00	5,33	17,75	3,33	1
CF Type I	Transcend 300x 16GB SLC UDMA (TS16GCF300)	7D	1.10	5,30	8,90	1,68	1
CF Type I	Lexar 1GB 40X WA	a100	1.10	5,21	7,40	1,42	1
CF Type I	PQI F1 40x 512MB	5D	1.00	5,14	9,00	1,75	1
CF Type I	Industrial Grade ATP AF1GCFI	5D	1.00	5,12	8,70	1,70	1
CF Type I	Transcend 120X 2GB	7D	1.10	4,83	8,70	1,80	1
CF Type I	Fuji Fujifilm 512 MB High Performance 80X	7D	1.10	4,83	8,70	1,80	1
CF Type I	Lexar 2GB 133X WA	7D	1.10	4,79	8,76	1,83	2
CF Type I	Transcend 120X 4GB	5D	1.00	4,78	8,70	1,82	1
CF Type I	Sandisk Ultra II 2GB	7D	1.10	4,70	8,70	1,85	9
CF Type I	Sandisk Ultra II 1GB	7D	1.10	4,68	8,70	1,86	8
CF Type I	Transcend 80X 1GB	5D	1.00	4,68	8,70	1,86	2
CF Type I	Lexar 256MB 12x	5D	1.00	4,63	8,70	1,88	1
CF Type I	Adata 8GB 120X	a100	1.10	4,56	7,95	1,74	2
CF Type I	Sandisk Standard 512MB	5D	1.00	4,55	8,70	1,91	2
CF Type I	Ritek/Ridata 150X PRO 4GB	5D	1.10	4,50	9,00	2,00	1
CF Type I	Lexar 1GB 80X WA	7D	1.10	4,21	8,72	2,07	5
CF Type I	Extrememory Performance 80x 1GB	7D	1.10	4,14	8,70	2,10	1
CF Type I	Sandisk Ultra II 512MB	7D	1.10	4,01	8,70	2,17	8
CF Type I	PNY 512MB	5D	1.00	3,93	8,80	2,24	2
CF Type I	Adata 1GB 120X	7D	1.10	3,82	8,70	2,28	1
CF Type I	Toshiba X4store 512 MB (THNCF512MDG)	7D	1.10	3,73	8,70	2,33	2
CF Type I	Dane-Elec 512MB	5D	1.00	3,64	8,70	2,39	1
CF Type I	Sandisk Ultra II 4GB	7D	1.10	3,59	8,70	2,43	2
CF Type I	Dane-Elec 1GB XS	5D	1.00	3,59	8,97	2,50	1
CF Type I	Microdia XtraPlus 256MB	5D	1.00	3,58	8,70	2,43	1
SD	Sandisk Ultra II 2GB + Panasonic SD-CF adapter	5D	1.00	3,57	8,70	2,44	1
CF Type I	Promaster 512mb 75X	7D	1.10	3,57	8,70	2,44	1
CF Type I	Transcend 80X 2GB	7D	1.10	3,57	8,70	2,44	1
CF Type I	Toshiba 2 GB	a100	1.10	3,54	8,40	2,37	1
CF Type I	Adata 4GB 120X	7D	1.10	3,53	8,85	2,51	3
CF Type I	Transcend 80X 1GB	7D	1.10	3,53	8,70	2,47	2
CF Type I	Fuji Fujifilm 1GB High Performance 80x	7D	1.10	3,52	8,70	2,47	1
CF Type I	Transcend 120X 8GB	7D	1.10	3,36	8,98	2,67	1
CF Type I	Pretec 133x 2GB	a100	1.00	3,25	9,75	3,00	1
CF Type I	Viking 1 GB	5D	1.00	3,22	8,70	2,70	1
CF Type I	Lexar 4GB 40X WA	7D	1.10	3,19	8,70	2,73	2
SD	Sandisk Extreme III SD 1GB + KM SD-CF1	7D	1.10	3,00	8,70	2,90	1
CF Type I	Adata 8GB 120X	5D	1.00	3,00	8,73	2,91	1
CF Type I	Lexar 512MB 80x WA	7D	1.10	2,98	8,70	2,92	2
CF Type I	Samsung 1GB OEM	7D	1.10	2,94	8,70	2,96	1
CF Type I	Lexar 512MB 40X WA	7D	1.10	2,90	8,70	3,00	2
CF Type I	Lexar 1GB 40X WA	7D	1.10	2,90	8,70	3,00	1
CF Type I	Crucial 1GB	7D	1.10	2,90	8,70	3,00	1
SD	Ritek/Ridata 150x PRO. 2GB with Panasonic SD-CF	7D	1.10	2,90	8,70	3,00	1
CF Type I	Twinmos Ultra-X 140X 2GB	a100	1.10	2,86	9,45	3,30	1
CF Type I	Transcend 80X 4GB	7D	1.10	2,81	8,70	3,10	1
CF Type II	Hitachi Microdrive 6GB	5D	1.00	2,78	8,70	3,13	1
CF Type I	PNY 256MB	5D	1.00	2,68	8,70	3,25	1
CF Type I	Lexar 2GB 80X WA	7D	1.10	2,66	8,70	3,27	3
CF Type I	Kingston Memory 512MB	7D	1.10	2,61	8,70	3,33	1
CF Type I	Kingston Elite Pro 4GB	a100	1.10	2,47	5,68	2,30	1
CF Type I	BSA 128MB	7D	1.10	2,40	8,70	3,63	1
CF Type I	Lexar 4GB 80X WA	7D	1.10	2,30	8,70	3,78	1
CF Type I	PQI Hi-Speed 100 4GB	7D	1.10	2,29	8,70	3,80	1
CF Type I	Transcend 120X 2GB	5D	1.00	2,26	8,70	3,86	3
CF Type I	Sandisk Ultra 512MB	5D	1.00	2,23	8,70	3,90	1
CF Type II	Hitachi Microdrive 2GB	5D	1.00	2,15	8,80	4,10	1
CF Type I	Lexar 256MB 12x	7D	1.10	2,13	8,70	4,08	3
CF Type I	Memorex 512MB	7D	1.10	2,06	8,70	4,22	1
CF Type II	Hitachi Microdrive 1GB	5D	1.00	1,96	8,70	4,43	2
CF Type II	Hitachi Microdrive 6GB	7D	1.10	1,91	8,70	4,55	1
CF Type I	Kingston Memory 1024MB	5D	1.00	1,90	8,70	4,59	1
MS PRO	Sony Duo High Speed 2GB (with AD-MSCF1)	a100	1.10	1,89	7,00	3,70	1
CF Type II	Hitachi Microdrive 4GB	7D	1.10	1,81	8,70	4,79	5
CF Type I	Apacer Photo STENO Pro II 100x	7D	1.10	1,77	8,70	4,91	5
CF Type I	Lexar 512MB 12x	7D	1.10	1,74	8,70	5,00	1
CF Type I	Transcend 512MB	5D	1.00	1,66	8,72	5,26	2
SD	Sandisk Extreme III SD 1GB + KM SD-CF1	7D	1.00	1,53	8,70	5,70	1
SD	Kingmax Platinum 1GB (SDC-001G3) + PNY SD-CF adapter	7D	1.00	1,45	8,70	6,00	1
CF Type I	Dane-Elec 512MB	7D	1.10	1,39	8,70	6,24	2
CF Type I	Kingston Memory 256MB	7D	1.10	1,32	8,70	6,58	1
CF Type I	Kingston Memory 1024MB	7D	1.10	1,28	8,70	6,78	2
CF Type I	Dane-Elec 1GB XS	7D	1.10	1,23	8,70	7,05	2
CF Type I	Viking 512MB	7D	1.10	1,23	8,70	7,10	1
CF Type I	Sandisk Standard 256MB	a100	1.10	1,20	9,77	8,11	1
CF Type I	Fuji Fujifilm 1GB - Professional 100x	5D	1.00	1,09	8,70	8,00	1
CF Type I	ByteStor Hi-Speed 100x 1GB	5D	1.00	1,09	8,70	8,00	1
CF Type I	Lexar 1GB 80X WA	7D	1.00	1,09	8,70	8,00	1
CF Type I	Lexar 1GB 40X WA	7D	1.00	1,09	8,70	8,00	1
CF Type I	Lexar 512MB 40X WA	7D	1.00	1,09	8,70	8,00	1
CF Type I	Twinmos Ultra-X 140X 4GB	5D	1.00	1,08	8,70	8,02	1
CF Type II	Hitachi Microdrive 1GB	7D	1.10	1,08	8,70	8,03	3
CF Type I	Twinmos Ultra-X 140X 1GB	5D	1.00	1,07	8,70	8,14	1
CF Type I	Microdia XtraPro 256MB	5D	1.00	1,07	8,70	8,16	1
CF Type I	Dane-Elec 512MB	7D	1.00	1,06	8,70	8,22	1
CF Type I	Lexar 2GB 80X WA	7D	1.00	1,04	8,70	8,33	3
CF Type I	Kingston Elite Pro 4GB	7D	1.10	1,04	8,80	8,49	4
CF Type I	Kingston Memory 256MB	7D	1.00	1,03	8,70	8,41	1
CF Type I	Twinmos Ultra-X 140X 4GB	7D	1.10	1,03	8,70	8,44	1
CF Type I	Twinmos Ultra-X 140X 2GB	7D	1.10	1,03	8,70	8,44	1
CF Type I	Transcend 1GB 45X	7D	1.10	1,02	8,70	8,55	1
CF Type I	Transcend 512 45X	7D	1.00	0,99	8,70	8,75	2
CF Type I	Transcend 1GB 45X	7D	1.00	0,99	8,70	8,75	2
CF Type I	ByteStor Hi-Speed 100x 1GB	7D	1.10	0,97	8,70	9,00	1
CF Type I	Kingston Memory 512MB	7D	1.00	0,97	8,70	9,00	1
CF Type I	Kingston Elite Pro 1024MB	7D	1.00	0,97	8,70	9,00	1
CF Type I	Transcend 512 45X	7D	1.10	0,97	8,70	9,00	1
CF Type I	Kingston Elite Pro 2GB	5D	1.00	0,97	8,70	9,00	3
CF Type I	Sandisk Ultra II 1GB	7D	1.00	0,93	8,70	9,40	4
CF Type I	Lexar 256MB 12x	7D	1.00	0,91	8,70	9,53	2
CF Type I	Kingston Elite Pro 1024MB	5D	1.00	0,91	8,70	9,53	3
CF Type I	Sandisk Standard 1GB	7D	1.10	0,91	8,70	9,60	2
CF Type I	SimpleTech PRO X 512MB	7D	1.00	0,90	8,70	9,70	1
CF Type I	Ritek/Ridata 52X PRO 1GB	5D	1.00	0,89	8,70	9,80	1
CF Type I	Fuji Fujifilm 1GB High Performance 80x	5D	1.00	0,89	8,70	9,80	1
CF Type I	Sandisk Ultra II 2GB	7D	1.00	0,87	8,70	10,00	1
CF Type I	Kingston Elite Pro 4GB	5D	1.00	0,86	8,73	10,12	2
CF Type I	Sandisk Ultra 512MB	7D	1.10	0,86	8,70	10,09	2
CF Type I	Sandisk Ultra II 4GB	7D	1.00	0,84	8,70	10,38	1
CF Type I	Kingston Elite Pro 2GB	7D	1.10	0,83	8,70	10,53	4
CF Type I	PQI F1 40x 512MB	7D	1.10	0,82	8,70	10,62	1
CF Type I	Sandisk Ultra II 512MB	7D	1.00	0,82	8,70	10,67	3
CF Type I	Kingston Elite Pro 1024MB	7D	1.10	0,81	8,70	10,68	6
CF Type II	Hitachi Microdrive 2GB	7D	1.00	0,79	8,70	11,00	1
CF Type II	Hitachi Microdrive 4GB	7D	1.00	0,79	8,70	11,00	1
CF Type I	Ritek/Ridata 52X PRO 2GB	7D	1.10	0,79	8,70	11,00	1
CF Type I	Kingston Elite Pro 512MB	7D	1.10	0,79	8,70	11,01	4
CF Type I	Kingston Elite Pro 512MB	7D	1.00	0,74	8,70	11,70	1
CF Type I	MSM 256MB	7D	1.10	0,73	8,70	11,87	1
SD	Sandisk Ultra II 2GB + Eagletec SD/MMC	5D	1.00	0,69	8,70	12,60	1
CF Type I	PQI F1 40x 512MB	7D	1.00	0,67	8,70	13,00	1
CF Type II	Hitachi Microdrive 1GB	7D	1.00	0,64	8,70	13,50	2
CF Type I	Kingston Elite Pro 2GB	7D	1.00	0,64	8,70	13,60	1
CF Type I	MSM 256MB	7D	1.00	0,62	8,70	14,00	1
CF Type I	Fuji Fujifilm 1GB High Performance 80x	7D	1.00	0,61	8,70	14,28	1