GeForce GTX 1080 vs Radeon HD 7870

Intro

Compare those specifications to the Radeon HD 7870, which has a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 Texture Address Units, 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 7870		6230 points
	Difference: 15712 (252%)

Zcash Mining Hash Rate

GeForce GTX 1080		553 Sol/s
Radeon HD 7870		172 Sol/s
	Difference: 381 (222%)

Ethereum Mining Hash Rate

GeForce GTX 1080		20 Mh/s
Radeon HD 7870		16 Mh/s
	Difference: 4 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
GeForce GTX 1080		180 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

In theory, the GeForce GTX 1080 will be 113% faster than the Radeon HD 7870 overall, due to its higher data rate. (explain)

GeForce GTX 1080		327680 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 174080 (113%)

Texel Rate

The GeForce GTX 1080 will be much (more or less 221%) faster with regards to anisotropic filtering than the Radeon HD 7870. (explain)

GeForce GTX 1080		257120 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 177120 (221%)

Pixel Rate

The GeForce GTX 1080 is a lot (approximately 221%) more effective at FSAA than the Radeon HD 7870, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1080		102848 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 70848 (221%)

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 (counted in megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.