Today we are going to take a look at the Sapphire HD 7770 GHz Edition OC graphics card with a new architecture that may have fewer stream processors, but much higher clock speeds.
The Sapphire HD 7770 GHz Edition OC is based on the 28 nanometer GCN Architecture with 10 Compute cores (640 Stream Processors), 40 Texture Units, 64 Z/Stencil ROP Units, and 16 Color ROP Units.
As with all GHz Edition AMD HD 7770 graphics cards, it is designed for at least 1 GHz core speed and 1125 MHz (4500 GHz effective) GDDR5 memory across a 128-bit bus. The Sapphire HD 7770 GHz Edition OC is the single fastest card in this category with a core speed of 1.15 GHz (1150 MHz) and 1250 MHz (5000 MHz effective) speed for the 1 GB memory onboard.
The Sapphire HD 7770 GHz Edition seems to have an advantage with DX11 games. This could very well be true as the GCN architecture was intended to be forward thinking.
The Sapphire HD 7770 GHz Edition OC is the best in its class, but still not very impressive in the grand scheme of things. Don’t get me wrong here.
At the price point of $149.99 it is a great buy for those building a new mid range system or those upgrading from any previous generation card that is a 6790 or lower. Even if a similarly priced AMD GPU matches performance, it will still be at a clear win in power consumption, noise, and cooling for this card, as illustrated by its battle with its closest sibling still on the market, the HD 6850.
Source
Sapphire 11201-02-20G Radeon HD 7770 GHZ OC 1GB DDR5 HDMI / DVI-I / Dual Mini DP PCI-Express Graphics CardThe Sapphire HD 7770 GHz Edition OC is based on the 28 nanometer GCN Architecture with 10 Compute cores (640 Stream Processors), 40 Texture Units, 64 Z/Stencil ROP Units, and 16 Color ROP Units.
As with all GHz Edition AMD HD 7770 graphics cards, it is designed for at least 1 GHz core speed and 1125 MHz (4500 GHz effective) GDDR5 memory across a 128-bit bus. The Sapphire HD 7770 GHz Edition OC is the single fastest card in this category with a core speed of 1.15 GHz (1150 MHz) and 1250 MHz (5000 MHz effective) speed for the 1 GB memory onboard.
The Sapphire HD 7770 GHz Edition seems to have an advantage with DX11 games. This could very well be true as the GCN architecture was intended to be forward thinking.
The Sapphire HD 7770 GHz Edition OC is the best in its class, but still not very impressive in the grand scheme of things. Don’t get me wrong here.
At the price point of $149.99 it is a great buy for those building a new mid range system or those upgrading from any previous generation card that is a 6790 or lower. Even if a similarly priced AMD GPU matches performance, it will still be at a clear win in power consumption, noise, and cooling for this card, as illustrated by its battle with its closest sibling still on the market, the HD 6850.
Source
Price $149.99
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