GeForce GTX 1080 vs Radeon HD 7950

Intro

Compare all of that to the Radeon HD 7950, which has a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It features 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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 7950		7731 points
	Difference: 14211 (184%)

Zcash Mining Hash Rate

GeForce GTX 1080		553 Sol/s
Radeon HD 7950		235 Sol/s
	Difference: 318 (135%)

Ethereum Mining Hash Rate

Radeon HD 7950		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 7950		200 Watts
	Difference: 20 Watts (11%)

Memory Bandwidth

In theory, the GeForce GTX 1080 should be 37% quicker than the Radeon HD 7950 in general, due to its greater data rate. (explain)

GeForce GTX 1080		327680 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 87680 (37%)

Texel Rate

The GeForce GTX 1080 is quite a bit (about 187%) better at AF than the Radeon HD 7950. (explain)

GeForce GTX 1080		257120 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 167520 (187%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1080 is the winner, by far. (explain)

GeForce GTX 1080		102848 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 77248 (302%)

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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one 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 speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.