Here are some crysis2 demo benchmarks. Note that this is only DX9. When you use DX 11 expect your framerates to be 20%-40% slower.
source
update: the specs of the pc used was
CPU Processor | Intel Core i5 760@2.8GHz |
Motherboard Motherboard | Asus P55 |
RAM Memory | Chaintech DDR3-2000 4GB (2GB × 2) |
Hard drive HDD | Seagate Barracuda (Seagate Barracuda) 7200.12 1TB |
the end