GeForce GTX 1080 vs Radeon HD 7950 3GB

Intro

Compare all that to the Radeon HD 7950 3GB, which has a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 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.

Zcash Mining Hash Rate

GeForce GTX 1080		553 Sol/s
Radeon HD 7950 3GB		229 Sol/s
	Difference: 324 (141%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 20 Watts (11%)

Memory Bandwidth

The GeForce GTX 1080 should theoretically be a lot faster than the Radeon HD 7950 3GB overall. (explain)

GeForce GTX 1080		327680 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 87680 (37%)

Texel Rate

The GeForce GTX 1080 is a lot (more or less 187%) more effective at anisotropic filtering than the Radeon HD 7950 3GB. (explain)

GeForce GTX 1080		257120 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 167520 (187%)

Pixel Rate

The GeForce GTX 1080 will be much (more or less 302%) faster with regards to anti-aliasing than the Radeon HD 7950 3GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1080		102848 Mpixels/sec
Radeon HD 7950 3GB		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 information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.