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GD Star Rating

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7970 GHz Edition GeForce GTX 770
Fallout 4 16% 18%
Assassins Creed: Syndicate 20% 19%
Call of Duty: Black Ops 3 24% 23%
Just Cause 3 16% 18%
Star Wars: Battlefront 23% 24%
Rainbow Six: Siege 13% 12%
FIFA 16 57% 57%
Need For Speed 24% 23%
Rise of the Tomb Raider 68% 68%
ARK: Survival Evolved 35% 34%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7970 GHz Edition are marginally better than the Nvidia GeForce GTX 770.

The GeForce GTX 770 has a 46 MHz higher core clock speed and the same number of Texture Mapping Units as the HD 7970. This results in the GeForce GTX 770 providing 5.9 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 770 has a 46 MHz higher core clock speed than the HD 7970 and the same number of Render Output Units. This results in the GeForce GTX 770 providing 1.5 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GTX 770 was released less than a year after the HD 7970, and so they are likely to have similar driver support for optimizing performance when running the latest games.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The HD 7970 has 1024 MB more video memory than the GeForce GTX 770, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7970 also has superior memory performance overall.

The HD 7970 has 63.7 GB/sec greater memory bandwidth than the GeForce GTX 770, which means that the memory performance of the HD 7970 is much better than the GeForce GTX 770.

The Radeon HD 7970 GHz Edition has 2048 Shader Processing Units and the GeForce GTX 770 has 1536. However, the actual shader performance of the HD 7970 is 1828 and the actual shader performance of the GeForce GTX 770 is 1667. The HD 7970 having 161 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7970 delivers a significantly smoother and more efficient experience when processing graphical data than the GeForce GTX 770.

The Radeon HD 7970 GHz Edition requires 250 Watts to run and the GeForce GTX 770 requires 230 Watts. We would recommend a PSU with at least 500 Watts for the HD 7970 and a PSU with at least 550 Watts for the GeForce GTX 770. The HD 7970 requires 20 Watts more than the GeForce GTX 770 to run. The difference is not significant enough for the HD 7970 to have a noticeably larger impact on your yearly electricity bills than the GeForce GTX 770.

Can I Run It

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GPU Architecture

Core Speed1000 MHzvs1046 MHz
Boost Clock1050 MHzvs1085 MHz
ArchitectureGCN 1.0 Tahiti XT2Kepler GK104-425-A2
OC Potential Fair vs Poor
Driver Support Good vs Good
Release Date22 Jun 2012vs30 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory3072 MBvs2048 MB
Memory Speed1500 MHzvs1752 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288GB/secvs224.3GB/sec
L2 Cache 768 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 100% green tick vs 78%

GPU Display

Shader Processing Units2048vs1536
Actual Shader Performance88%vs80%
Texture Mapping Units128vs128
Texture Rate128 GTexel/svs133.9 GTexel/s
Render Output Units32vs32
Pixel Rate32 GPixel/svs33.5 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power250 Wattsvs230 Watts
Recommended PSU500 Watts & 42 Ampsvs550 Watts & 37 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3770K 4-Core 3.5GHzvsIntel Core i5-4670K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 7970 GHz Edition is a High-End Graphics Card based on the First Revision of the Graphics Core Next (GCN) Architecture.

The GCN 1.1 revision of the Graphics Core Next Architecture adds new important technologies and is largely oriented for energy efficiency. New technologies such as PowerTune and TrueAudio are the biggest additions as well as DirectX 11.2 support.

It equips a GPU Codenamed Tahiti XT2 which has 32 Compute Units activated and thus offers 2048 Shader Processing Units, 128 TMUs and 32 ROPs. The Central Unit is clocked at 1000MHz and goes up to 1050MHz, in Turbo Mode.

The GPU accesses a 3GB frame buffer of fast GDDR5, through a 384-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 1500MHz.

Power Consumption
With a rated board TDP of 275W, it requires at least a 600W PSU with one available 6-pin and one available 8-pin connectors.

Radeon HD 7970 GHz Edition competes with GeForce GTX 680 and is essentially a Higher Clocked Radeon HD 7970 with the addition of The Boost Clock.
It proves to be faster than GeForce GTX 680 at resolutions up to 1920x1080 but takes further lead beyond that.

System Suggestions
Radeon HD 7970 GHz Edition is best suited for resolutions up to and including 1920x1080. We recommend a Very Strong Processor (Intel Core i7 Quad Core/AMD FX Eight Core) and 8GB of RAM for Optimal Performance.
Recommended CPUIntel Core i5-4590T 2.0GHz
Intel Xeon Processor X5650
Intel Core i5-3570T 2.3GHz
Intel Core i5-2320 3.0GHz
Intel Core i7-880 Quad 3.06GHz
Intel Core i7-4770T 4-Core 2.5GHz
AMD FX-8370
Intel Xeon E3-1270
Intel Core i7-2600K 4-Core 3.40GHz
Intel Core i7-2600 4-Core 3.40GHz
Possible GPU UpgradesRadeon R9 390 Sapphire Nitro w/ Back Plate 8GB Edition
Radeon R9 390 Asus DirectCU III OC Strix Gaming 8GB Edition
Radeon R9 290X PowerColor PCS+ 4GB Edition
Radeon R9 290X Asus ROG Matrix Platinum Edition
Radeon R9 290X Asus DirectCU II OC Edition
GPU Variants-GeForce GTX 770 Gainward 2GB Edition
GeForce GTX 770 EVGA SC Edition
GeForce GTX 770 Galaxy GC 2GB Edition
GeForce GTX 770 Asus ROG Poseidon 2GB Edition