GeForce GTX 570 vs Radeon HD 7870

Intro

Compare those specifications to the Radeon HD 7870, which features core clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

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

Radeon HD 7870		6230 points
GeForce GTX 570		4387 points
	Difference: 1843 (42%)

Ethereum Mining Hash Rate

Radeon HD 7870		16 Mh/s
GeForce GTX 570		13 Mh/s
	Difference: 3 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
GeForce GTX 570		219 Watts
	Difference: 44 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7870 should in theory be a bit better than the GeForce GTX 570 overall. (explain)

Radeon HD 7870		153600 MB/sec
GeForce GTX 570		152000 MB/sec
	Difference: 1600 (1%)

Texel Rate

The Radeon HD 7870 is much (approximately 82%) more effective at anisotropic filtering than the GeForce GTX 570. (explain)

Radeon HD 7870		80000 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 36080 (82%)

Pixel Rate

The Radeon HD 7870 is a little bit (approximately 9%) better at FSAA than the GeForce GTX 570, and should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7870		32000 Mpixels/sec
GeForce GTX 570		29280 Mpixels/sec
	Difference: 2720 (9%)

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 MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.