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Gaming Performance Comparison

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

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 1935 and the actual shader performance of the GeForce GTX 770 is 1667. The HD 7970 having 268 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7970 delivers a noticeably 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 Core Details

Core Speed1000 MHzvs1046 MHz
ArchitectureGCN 1.0 Tahiti XT2Kepler GK104-425-A2
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Release Date22 Jun 201230 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
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10
1600x900
10
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10
1920x1080
9.4
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8.5
2560x1440
8.7
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8.5
3840x2160
8.8
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8.5

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
Comparison

GPU Display

Shader Processing Units2048vs1536
Actual Shader Performance1935vs1667
Technology28nmvs28nm
Texture Mapping Units128vs128
Texture Rate128 GTexel/svs133.9 GTexel/s
Render Output Units32vs32
Pixel Rate32 GPixel/svs33.5 GPixel/s
Comparison

GPU Display Tech

DirectX11.1vs11.1
Shader Model5.0vs5.0
Open GL4.2vs4.3
Max Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
Comparison

GPU Power Requirements

Max Power250 Wattsvs230 Watts

GPU Supporting Hardware

Recommended RAM-8 GB
Recommended Screen Size1920x10801920x1080
Recommended PSU500 Watts & 42 Ampsvs550 Watts & 38 Amps

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7970 GHz Edition, codenamed Tahiti XT2, is the successor to Radeon HD 7970.
In this edition, the core configuration remains the same. The core-clock was increased from 925MHz to 1000MHz (1050MHz in Turbo) and the memory clock from 1375MHz to 1500MHz.
Benchmarks indicate the performance is around 10% superior than Radeon HD 7970 and so it was 2012 most powerful single Graphics Card.
As of 2013, it's still one of the fastest but GeForce GTX 780 & GeForce GTX TITAN offer superior performance.
GeForce GTX 770 is a high-end graphics card based on the 28nm, Kepler architecture.
It's based on the Kepler GK104 Core and therefore offer 1536 Shader Processing Units, 128 TMUs and 32 ROPs on a 256-bit memory interface of fast GDDR5. While the central unit runs at 1046MHz and goes up to 1085MHz in Turbo Mode, the memory clock operates at 1753MHz. It consumes up to 230W.
It's, therefore, a tweaked GeForce GTX 680 that performs up to 5% better. Therefore, it's suited for a 1080p resolution and to play the most demanding games at the highest settings.
Recommended CPUIntel Core i3-4350 3.6GHz
Intel Core i3-4340 3.6GHz
Intel Core i5-750S 2.4GHz
Intel Core i5-750 2.66GHz
AMD Phenom II X4 B65
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 Upgrades--
GPU Variants-GeForce GTX 770 Galaxy HOF 2GB Edition