GeForce GTX 570 vs Radeon HD 7870

Intro

Compare those specifications to the Radeon HD 7870, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory runs at a speed of 1200 MHz on this particular model. It features 1280 SPUs along with 80 TAUs 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

Theoretically speaking, the Radeon HD 7870 should perform a small bit faster 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 will be much (about 82%) better at texture filtering than the GeForce GTX 570. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7870 is superior to the GeForce GTX 570, not by a very large margin though. (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 (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.