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Home » Video
XFX Radeon HD 7770 Super Overclocked Edition Video Card Review
Author: Gabriel Torres 44,175 views
Type: Reviews Last Updated: February 20, 2012
Page: 3 of 14
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 Edition
click to enlarge
Figure 6: XFX Radeon HD 7770 Super Overclocked Edition

XFX R7770 Black Edition
click to enlarge
Figure 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 Edition
click to enlarge
Figure 8: Memory chips

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

XFX R7770 Black Edition
click to enlarge
Figure 9: Accessories

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

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