GeForce GTX 1080 vs Radeon HD 7970

Intro

Compare all of that to the Radeon HD 7970, which has GPU core speed of 925 MHz, and 3072 MB of GDDR5 memory running at 1375 MHz through a 384-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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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 will be 24% quicker than the Radeon HD 7970 in general, because of its greater data rate. (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 (more or less 117%) faster with regards to 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%) more effective at FSAA than the Radeon HD 7970, and should 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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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