AMD Radeon HD 7770M: specs and benchmarks
AMD started Radeon HD 7770M sales 24 April 2012. This is GCN 1.0 architecture notebook card based on 28 nm manufacturing process and primarily aimed at gamers. 1 GB of GDDR5 memory clocked at 4 GHz are supplied, and together with 128 Bit memory interface this creates a bandwidth of 64 GB/s.
Compatibility-wise, this is card attached via PCIe 2.0 x16 interface. Power consumption is at 32 Watt.
It provides poor gaming and benchmark performance at 5.90 percent of a leader's which is AMD Radeon R9 390 X2.