Lars Johnsson Offline Upload & Sell: Off
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CF card speed test "updated" | |
I got a few new cards so I did a new test. My new Transcend cards 400x which are UDMA 7 cards today are a lot faster than the UDMA 6 version of the 400x card. Both Transcend and Sandisk have updated their cards from UDMA 6 to 7 without saying anything. And the new cards that look the same except the 7 or the Video Performance Guarantee (VPG) pic.
It\'s 30 sec shooting with RAW in my Canon 1D4. All settings are the same of course. But this time I had the lens on MF and also the camera in M settings to get everything exactly the same. I will do the same test with a 1DX when I buy that body.
ISO 100
1/4000 sec
f/5,6
lens EF 24L
Gitzo tripod RRS head
Conclusion: UDMA 7 cards are improved a lot. And there is a huge speed increase when comparing them against the same older card with UDMA 6. Even when the makers have the same speed on the card.
Transcend 128GB UDMA 7 1000x----- 143 shots in the 30 sec burst
Transcend 64GB UDMA 7 600x------ 133
Lexar 128GB UDMA 7 400x ---------- 118
Transcend 64GB UDMA 7 400x ---- 113
Sandisk 32GB Extreme Pro --------- 113
Transcend 32GB UDMA 7 400x----- 112
Transcend 64GB UDMA 6 400x ------ 82
Duracell Pro photo 32GB 600x -------------- 79
Sandisk Extreme III 16GB--------- 75
A-Data 533x --------------------- 60
Transcend 32GB 133x ------------ 52
Transcend 16GB 133x------------- 46
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