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GeForce GTX 970 vs Radeon HD 7970

Intro

The GeForce GTX 970 makes use of a 28 nm design. nVidia has set the core speed at 1050 MHz. The GDDR5 memory works at a speed of 1750 MHz on this card. It features 1664 SPUs along with 104 Texture Address Units and 64 ROPs.

Compare all of that to the Radeon HD 7970, which comes with a core clock frequency of 925 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 384-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 970 10867 points
Radeon HD 7970 8225 points
Difference: 2642 (32%)

Ethereum Mining Hash Rate

Radeon HD 7970 21 Mh/s
GeForce GTX 970 19 Mh/s
Difference: 2 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970 145 Watts
Radeon HD 7970 250 Watts
Difference: 105 Watts (72%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7970 should in theory be a little bit better than the GeForce GTX 970 overall. (explain)

Radeon HD 7970 264000 MB/sec
GeForce GTX 970 224000 MB/sec
Difference: 40000 (18%)

Texel Rate

The Radeon HD 7970 should be a little bit (approximately 8%) better at AF than the GeForce GTX 970. (explain)

Radeon HD 7970 118400 Mtexels/sec
GeForce GTX 970 109200 Mtexels/sec
Difference: 9200 (8%)

Pixel Rate

The GeForce GTX 970 will be quite a bit (about 127%) faster with regards to AA than the Radeon HD 7970, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 970 67200 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 37600 (127%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 970

Amazon.com

Check prices at:

Radeon HD 7970

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 970 Radeon HD 7970
Manufacturer nVidia AMD
Year September 2014 January 2012
Code Name GM204-200 Tahiti XT
Memory 4096 MB 3072 MB
Core Speed 1050 MHz 925 MHz
Memory Speed 7000 MHz 5500 MHz
Power (Max TDP) 145 watts 250 watts
Bandwidth 224000 MB/sec 264000 MB/sec
Texel Rate 109200 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 1664 2048
Texture Mapping Units 104 128
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 5200 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 970

Amazon.com

Check prices at:

Radeon HD 7970

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

One Response to “GeForce GTX 970 vs Radeon HD 7970”
ThomasTheTank says:

Haha, in Bulgaria a 7970 BRAND NEW costs like 200 EURO. And the 970... 400 Euro. DA FACK !

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