XFX Radeon HD 7770 Super Overclocked Edition Video Card Review

The XFX Radeon HD 7770 Super Overclocked Edition (Cont’d)

In Figure 6, you can see the video card with its cooler removed. It uses the AMD reference design. There is a voltage regulator with three phases for the GPU and one phase for the memory chips. The phases for the GPU use ferrite-core coils, but the phase for the memory uses an iron-core coil. All capacitors used on this video card are solid.

XFX R7770 Black EditionFigure 6: XFX Radeon HD 7770 Super Overclocked Edition

XFX R7770 Black EditionFigure 7: The GPU voltage regulator

The reviewed video card uses four Hynix H5GQ2H24MFR-T2C GDDR5 chips, each one storing 2 Gbit of data, making the 1 GB of memory available on this video card. Each chip is connected to the GPU through a 32-bit lane, creating the 128-bit datapath that is available. These chips can run up to 5 GHz. On this video card, they are accessed at 5.2 GHz, so they are operating 4% above their official clock rate.

XFX R7770 Black EditionFigure 8: Memory chips

In Figure 9, you can see all accessories that come with the video card.

XFX R7770 Black EditionFigure 9: Accessories

Before seeing the performance results, let’s recap the main features of this video card.

Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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