GeForce GTX 1080 vs Radeon HD 7950

Intro

Compare that to the Radeon HD 7950, which features a core clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 32 ROPs.

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

Theoretically, the GeForce GTX 1080 should perform a lot faster than the Radeon HD 7950 in general. (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 (approximately 187%) faster with regards to anisotropic filtering 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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.