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Home » Video
XFX Radeon HD 7770 Super Overclocked Edition Video Card Review
Author: Gabriel Torres 43,647 views
Type: Reviews Last Updated: February 20, 2012
Page: 1 of 14
Introduction

The new Radeon HD 7770 (a.k.a. “Cape Verde XT”) is a mainstream graphics chip based on the latest graphics architecture from AMD, dubbed “Graphics Core Next” or simply “GCN,” which supports the new PCI Express 3.0 connection and the latest DirectX version (11.1). Let’s see how the Super Overclocked Edition from XFX fared in our tests.

For a detailed explanation of the new features present on this latest architecture, please read our Radeon HD 7970 review.

XFX released four different video cards based on the Radeon HD 7770. In the table below, we compare the differences between them. All of them have 1 GB of GDDR5 memory with a 128-bit interface. The “Core Edition” and the “Double Dissipation Edition” use the stock clocks, while the other two models come overclocked.

Model

Part Number

Core Clock

Memory Clock (Effective)

Memory Transfer Rate

Cooler

Price

Core Edition

FX-777A-ZNF4

1 GHz

4.5 GHz

72 GB/s

One Fan

USD 160

Double Dissipation

FX-777A-ZDF4

1 GHz

4.5 GHz

72 GB/s

Two Fans

USD 170

Black Edition

FX-777A-ZDB4

1,095 MHz

4.98 GHz

79.68 GB/s

Two Fans

USD 180

Super Overclocked

FX-777A-ZDSC

1.12 GHz

5.2 GHz

83.2 GB/s

Two Fans

USD 185

In the table below, we compare the main specifications of the video cards included in our review. The prices listed below do not include rebates and are for the models with the clock and memory configurations listed below. Prices were researched at Newegg.com on the day we published this review, except for the Radeon HD 7770 and the XFX Radeon HD 7770 Super Overclocked, which are the prices advertised by AMD and XFX, respectively.

Video Card

Core Clock

Shader Clock

Memory Clock (Effective)

Memory Interface

Memory Transfer Rate

Memory

Shaders

DirectX

Price

XFX Radeon HD 7770 Super Overclocked

1.12 GHz

1.12 GHz

5.2 GHz

128-bit

83.2 GB/s

1 GB GDDR5

640

11.1

USD 185

Radeon HD 7770

1 GHz

1 GHz

4.5 GHz

128-bit

72 GB/s

1 GB GDDR5

640

11.1

USD 150

Radeon HD 6850

775 MHz

775 MHz

4 GHz

256-bit

128 GB/s

1 GB GDDR5

960

11

USD 140 - 170

GeForce GTX 460

675 MHz

1,350 MHz

3.6 GHz

256-bit

115.2 GB/s

1 GB GDDR5

336

11

USD 140 - 150

You can compare the specs of these video cards with other video cards by taking a look at our “AMD ATI Chips Comparison Table” and “NVIDIA Chips Comparison Table” tutorials.

Today, only the LGA2011 Core i7 processors (“Sandy Bridge-E”) have a PCI Express 3.0 controller. In our Radeon HD 7970 review, we discovered that, at this time, there is no difference between using a PCI Express 2.0 or a PCI Express 3.0 connection. Since the reviewed video card is a mainstream product, we decided to use a different testing platform, based on a Core i5-2500K processor.

Now let’s take a complete look at the XFX Radeon HD 7770 Super Overclocked Edition.

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