Super fast (and -teuer), but worth the price!

I have several cameras that are sometimes quite slow when saving and thus before one or the other recording storage operations by "blocked" as a hobby photographer.
During my SLR with 30MB / s cards had hardly any problems, you realize, for example in the Nikon P 7000 or the Lumix LX 7 distinct differences. Since both support the UHS-1 standard already, you can with them through fast memory cards quite a bit extract (eg with group photos, if once again pull out all the grimaces and they therefore shortly a series shoots).
At SanDisk cards I came back after a few bad buys at significantly cheaper competitors, even if the prices for 80MB / s cards really "naughty" are. In my cameras "slower" and for sports or portrait photography, the investment in the 80MB / s cards has definitely paid off.
For city breaks but also reaches the comparatively slow 30 MB / s card, the 64GB costs less than a fast 32 GB card. Even when backing up to the PC, the read rate of most cards is easily sufficient.

Below I once tested a few of my cards one a Lexar USB 3-Card Reader:
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CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World: [...]
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* MB / s = 1,000,000 bytes / sec [SATA / 300 = 300,000,000 bytes / s]

Sandisk Ultra 64GB class 10 30MB / s

Sequential Read: 43,584 MB / s
Sequential Write: 10,795 MB / s
Random Read 512KB: 41,583 MB / s
512KB Random Write: 5,768 MB / s
4KB Random Read (QD = 1): 5,049 MB / s [1232.8 IOPS]
Random Write 4KB (QD = 1): 1,068 MB / s [260.7 IOPS]
4KB Random Read (QD = 32): 5,327 MB / s [1300.6 IOPS]
Random Write 4KB (QD = 32): 0.717 MB / s [175.2 IOPS]

Sandisk Extreme 32GB Class 10 UHS-1 45MB / sec

Sequential Read: 43 934 MB / s
Sequential Write: 42,336 MB / s
Random Read 512KB: 41,100 MB / s
512KB Random Write: 1,669 MB / s
4KB Random Read (QD = 1): 4,138 MB / s [1010.1 IOPS]
Random Write 4KB (QD = 1): 1,579 MB / s [385.4 IOPS]
4KB Random Read (QD = 32): 3,751 MB / s [915.8 IOPS]
Random Write 4KB (QD = 32): 0901 MB / s [220.0 IOPS]

SanDisk Extreme Pro 8GB Class 10 UHS-1 45MB / sec

Sequential Read: 43 943 MB / s
Sequential Write: 42,435 MB / s
Random Read 512KB: 40 967 MB / s
512KB Random Write: 1,168 MB / s
4KB Random Read (QD = 1): 4,073 MB / s [994.4 IOPS]
Random Write 4KB (QD = 1): 0.180 MB / s [43.9 IOPS]
4KB Random Read (QD = 32): 4,639 MB / s [1132.5 IOPS]
Random Write 4KB (QD = 32): 0.174 MB / s [42.4 IOPS]

Sandisk Extreme 32GB Class 10 UHS-1 80 MB / s

Sequential Read: 86 367 MB / s
Sequential Write: 61 338 MB / s
Random Read 512KB: 80 071 MB / s
512KB Random Write: 22,959 MB / s
4KB Random Read (QD = 1): 9,695 MB / s [2367.0 IOPS]
Random Write 4KB (QD = 1): 3,530 MB / s [861.8 IOPS]
4KB Random Read (QD = 32): 7,833 MB / s [1912.4 IOPS]
Random Write 4KB (QD = 32): 1,634 MB / s [399.0 IOPS]