nEO IMG hd7770 2 604x272 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

Officially launched later today, the AMD Radeon 'Cape Verde' HD 7770 features stock 1GHz core clock speed, previously unheard of on entry level SKUs, along with the introduction of DirectX 11.1, PCIe 3.0 and the use of GDDR5 memory. Read more for our quick performance preview of this new game changer for the masses.

The HD 7770 uses the Graphics Core Next architecture and requires one 6-pin PCIe connector, which is typically found on lower TDP SKUs

nEO IMG hd7770 2 604x272 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

HD 7770 PCB – the relatively few number of components and empty spaces on the PCB suggests that smaller half-height configurations can be possible

hd7770 4 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

GPU Die Shot – Unlike its bigger Tahiti brothers, the Cape Verde (123mm2) die is far less complex (365mm2) and doesn't have a metal shim at the edges to protect the core from overzealous HSF mounting

xxx1 665x503 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

GPU-Z – compared to the Tahiti GPUs, the Cape Verde has about a third of the former's horsepower in terms of fillrate and comes with 1GB of GDDR5 memory in a 128Bit configuration

nEO IMG gpu 665x419 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

3DMark 11 Performance Score (CPU used was a i7-3960X) – the performance figures show that the HD 7770 is somewhere between a HD 6850 and a HD6870

xxx 665x416 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

3DMark 11 Performance Score

nEO IMG mark11 x 665x416 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

Lost Planet 2

nEO IMG LP2DX11 2012 02 13 20 49 06 69 665x374 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

Street Fighter 4

nEO IMG StreetFighterIV Benchmark 2012 02 13 19 51 39 35 665x374 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

Idle Power Usage with Intel Core i7-3960X

nEO IMG idle 665x580 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

Load Power Usage (Furmark) – +90W from idle to load, which is outstanding considering its performance

nEO IMG full 665x593 AMD Radeon HD 7770 Performance Preview: Bringing 28nm GCN to the Masses

 

Credits: VR-Zone Chinese Edition