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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7970 GeForce GTX 670

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7970 are very slightly better than the Nvidia GeForce GTX 670.

The Radeon HD 7970 has a 10 MHz higher core clock speed and 16 more Texture Mapping Units than the GeForce GTX 670. This results in the Radeon HD 7970 providing 15.9 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 Radeon HD 7970 has a 10 MHz higher core clock speed than the GeForce GTX 670 and the same number of Render Output Units. This results in the Radeon HD 7970 providing 0.3 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 670 was released less than a year after the Radeon 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 Radeon HD 7970 has 1024 MB more video memory than the GeForce GTX 670, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon HD 7970 also has superior memory performance overall.

The Radeon HD 7970 has 71.7 GB/sec greater memory bandwidth than the GeForce GTX 670, which means that the memory performance of the Radeon HD 7970 is much better than the GeForce GTX 670.

The Radeon HD 7970 has 2048 Shader Processing Units and the GeForce GTX 670 has 1344. However, the actual shader performance of the Radeon HD 7970 is 1610 and the actual shader performance of the GeForce GTX 670 is 1317. The Radeon HD 7970 having 293 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon HD 7970 delivers a significantly smoother and more efficient experience when processing graphical data than the GeForce GTX 670.

The Radeon HD 7970 requires 250 Watts to run and the GeForce GTX 670 requires 170 Watts. We would recommend a PSU with at least 600 Watts for the Radeon HD 7970 and a PSU with at least 500 Watts for the GeForce GTX 670. The Radeon HD 7970 requires 80 Watts more than the GeForce GTX 670 to run. The difference is significant enough that the Radeon HD 7970 may have an adverse affect on your yearly electricity bills in comparison to the GeForce GTX 670.

Can I Run It

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GPU Architecture

Core Speed925 MHzvs915 MHz
Boost Clock-vs980 MHz
ArchitectureGCN 1.0 Tahiti XTKepler GK104-325-A2
OC Potential Good vs Good
Driver Support Good vs Good
Release Date29 Dec 2011vs10 May 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs green tick
10
1600x900
10
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10
1920x1080
8.3
green tick vs
8.1
2560x1440
6.2
green tick vs
5.9
3840x2160
4.7
green tick vs
4.3

GPU Memory

Memory3072 MBvs2048 MB
Memory Speed1375 MHzvs1502 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth264GB/secvs192.3GB/sec
L2 Cache 768 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2048vs1344
Actual Shader Performance77%vs63%
Technology28nmvs28nm
Texture Mapping Units128vs112
Texture Rate118.4 GTexel/svs102.5 GTexel/s
Render Output Units32vs32
Pixel Rate29.6 GPixel/svs29.3 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power250 Wattsvs170 Watts
Recommended PSU600 Watts & 42 Ampsvs500 Watts & 37 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-2500K 3.3GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

The Elder Scrolls Vvs
Battlefield 3vs
Tomb Raidervs
Performance Value

GPU Mini Review

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

Architecture
The GCN Architecture succeeds the 40nm Terascale Architecture. In addition to being produced with a 28nm Technology, the GCN Architecture adds other Technologies that allow for energy efficiency. For example, ZeroCore Power, a long idle power saving technology, allows the Graphics Cards to shut down by itself when the Monitor is turned off.
GCN also adds Improved Anisotropic Filtering, DirectX 11 Tessellation and the Partially Resident Textures (PRT) Technology, which enables future games to utilize ultra-high resolution textures with the same performance as today's small and often repetitive textures.

GPU
It equips a GPU Codenamed Tahiti XT which has 32 Compute Units activated and thus offers 2048 Shader Processing Units, 128 TMUs and 32 ROPs. The Central Unit is clocked at 925MHz.

Memory
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 1375MHz.

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.

Performance
Radeon HD 7950 used to compete with GeForce GTX 680 but its performance was even behind the lower positioned GeForce GTX 670 and was later replaced by a faster Radeon HD 7970 GHz Edition.

System Suggestions
Radeon HD 7970 is best suited for resolutions up to and including 1920x1080. We recommend a Strong Processor (Intel Core i5 Quad Core/AMD FX Six Core) and 8GB of RAM for Optimal Performance.
Overview
GeForce GTX 670 is a High-End Graphics Card based on the first revision of the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

GPU
It equips a GPU Codenamed Kepler Kepler GK104-N13E-GTX-A2 which has 7 Stream Multiprocessors activated and thus offers 1344 Shader Processing Units, 112 TMUs and 32 ROPs. The Central Unit is initially clocked at 915MHz and goes up to 980MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 256-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1502MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for SLI, CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 170W, it requires at least a 500W PSU with two available 6-pin connectors.

Performance
With one Streaming MultiProcessor disabled, when compared to the higher positioned GeForce GTX 680, its performance lies somewhere between a Radeon HD 7950 and a Radeon HD 7970. However, at higher resolutions, Radeon HD 7970 is considerably faster.

System Suggestions
We recommend a Powerful Processor (Intel Core i5) and 8GB of RAM for a system with GeForce GTX 670.
Recommended CPUIntel Core i5-2500S 2.7GHz
AMD Opteron 6168
Intel Core i3-6320 3.9GHz
AMD FX-6300
AMD FX-6200
Intel Core i7-4785T 4-Core 2.2GHz
Intel Xeon E5-2407 v2
Intel Core i5-4570 3.2GHz
Intel Core i5-4670S 3.1GHz
Intel Xeon Processor W3670
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
Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition
Radeon R9 390X Club3D royalQueen OC 8GB Edition
Radeon R9 390X XFX Double Dissipation 8GB Edition
Radeon R9 390X Asus DirectCU II 8GB Edition
Radeon R9 390X Gigabyte G1 Gaming 8GB Edition
GPU VariantsRadeon HD 7970 VTX3D X 3GB Edition
GeForce GTX 670 Asus DirectCU II 4GB Edition
GeForce GTX 670 Palit 2GB Edition
GeForce GTX 670 SLI

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