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GeForce GTX 1070 vs Radeon HD 7970

Intro

The GeForce GTX 1070 has a GPU core clock speed of 1506 MHz, and the 8192 MB of GDDR5 memory runs at 2000 MHz through a 256-bit bus. It also features 1920 SPUs, 120 Texture Address Units, and 64 ROPs.

Compare those specifications to the Radeon HD 7970, which features a clock speed of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

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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 1070 18174 points
Radeon HD 7970 8225 points
Difference: 9949 (121%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 150 Watts
Radeon HD 7970 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon HD 7970, in theory, should be a bit faster than the GeForce GTX 1070 overall. (explain)

Radeon HD 7970 264000 MB/sec
GeForce GTX 1070 262144 MB/sec
Difference: 1856 (1%)

Texel Rate

The GeForce GTX 1070 will be a lot (approximately 53%) faster with regards to AF than the Radeon HD 7970. (explain)

GeForce GTX 1070 180720 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 62320 (53%)

Pixel Rate

The GeForce GTX 1070 will be much (approximately 226%) more effective at anti-aliasing than the Radeon HD 7970, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1070 96384 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 66784 (226%)

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 1070

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 1070 Radeon HD 7970
Manufacturer nVidia AMD
Year June 2016 January 2012
Code Name GP104-200 Tahiti XT
Memory 8192 MB 3072 MB
Core Speed 1506 MHz 925 MHz
Memory Speed 8000 MHz 5500 MHz
Power (Max TDP) 150 watts 250 watts
Bandwidth 262144 MB/sec 264000 MB/sec
Texel Rate 180720 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 96384 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 1920 2048
Texture Mapping Units 120 128
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 16 nm 28 nm
Transistors 7200 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially 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 1070

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.

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