12/30/2011 05:38:00 PM
dannzfay
The Radeon HD 7770 graphics card from Advanced Micro Devices is supposed to be a mainstream board but recent findings suggest it is stronger than people might think.
That is not to say that Advanced Micro Devices has changed its naming scheme and made the 7770 part of the high-end spectrum.
Rather, the board's capabilities are probably higher than what consumers would have given it credit for.
The new photo that surfaced on Chiphell shows the back of the PCB (previous leaks only showed the top side).
It was already known that the product has four memory chips on the upper side, but this shows that there are four extra chips on the underside.
In other words, the adapter possesses 2 GB of GDDR5 VRAM, clocked at 1.125 GHz, instead of just 1 GB.
Meanwhile, the memory interface is of 128 bits and the GPU clock speed hovers at 1 GHz (the first GPU to break the 1 GHz barrier without factory or home overclocking).
Other specifications include 896 stream processors (SPs), support for DirectX 11.1 and compliance with the PCI Express 3.0 specification.
Finally, the thermal design power is rated at between 90W and 100W (a single 6-pin PCI Express connector supplies the energy).
Going back to the benchmarking results, beta drivers enabled scores of P3421 (Performance Preset) and X1077 (Extreme Preset) in 3D Mark 11.
That is quite far ahead of the NVIDIA GeForce GTX 550 Ti and even AMD's own Radeon HD 6790. The HD 6850 barely succeeded in maintaining something resembling a lead.
If one were to factor in the performance optimizations of perfected drivers, the HD 7770 gains an even greater appeal.
Sales aren't underway, though, and they won't begin until February, 2012. When they do kick off, the price will be of $150 (116 Euro).
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