What is the Difference between C10 and C11 Ram Memory Kits?

[Mr Aceman]

So I am looking to get a pair of 2x8gb Corsair Vengeance Pro Series Ram Kits and have noticed that there are two different models, though they are the same, with a $5 difference:

1) Vengeance® Pro Series — 16GB (2 x 8GB) DDR3 DRAM 2400MHz C10 Memory Kit (CMY16GX3M2A2400C10R)

2) Vengeance® Pro Series — 16GB (2 x 8GB) DDR3 DRAM 2400MHz C11 Memory Kit (CMY16GX3M2A2400C11R)

The First is $244.99 and the Second $249.99. What is the difference between them?

 

[CepheiA]

C10 is faster. You'll notice this speed in benchmarks. You wont notice this speed in real-world computing.

http://www.tomshardware.com/forum/299012-30-latency-speed