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GeForce GTX 1080 vs Radeon HD 7970

Intro

The GeForce GTX 1080 makes use of a 16 nm design. nVidia has clocked the core frequency at 1607 MHz. The GDDR5X RAM works at a frequency of 1251 MHz on this particular card. It features 2560 SPUs as well as 160 Texture Address Units and 64 ROPs.

Compare all that to the Radeon HD 7970, which comes with a clock frequency of 925 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, 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 1080 21942 points
Radeon HD 7970 8225 points
Difference: 13717 (167%)

Ethereum Mining Hash Rate

Radeon HD 7970 21 Mh/s
GeForce GTX 1080 20 Mh/s
Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080 180 Watts
Radeon HD 7970 250 Watts
Difference: 70 Watts (39%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1080 should be a lot faster than the Radeon HD 7970 overall. (explain)

GeForce GTX 1080 327680 MB/sec
Radeon HD 7970 264000 MB/sec
Difference: 63680 (24%)

Texel Rate

The GeForce GTX 1080 will be a lot (approximately 117%) more effective at anisotropic filtering than the Radeon HD 7970. (explain)

GeForce GTX 1080 257120 Mtexels/sec
Radeon HD 7970 118400 Mtexels/sec
Difference: 138720 (117%)

Pixel Rate

The GeForce GTX 1080 should be much (more or less 247%) faster with regards to AA than the Radeon HD 7970, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 1080 102848 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 73248 (247%)

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 1080

Amazon.com

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Radeon HD 7970

Amazon.com

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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 1080 Radeon HD 7970
Manufacturer nVidia AMD
Year May 2016 January 2012
Code Name GP104-400 Tahiti XT
Memory 8192 MB 3072 MB
Core Speed 1607 MHz 925 MHz
Memory Speed 10008 MHz 5500 MHz
Power (Max TDP) 180 watts 250 watts
Bandwidth 327680 MB/sec 264000 MB/sec
Texel Rate 257120 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 2560 2048
Texture Mapping Units 160 128
Render Output Units 64 32
Bus Type GDDR5X 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 largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 1080

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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