GeForce GTX 570 vs Radeon HD 7870

Intro

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

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

In theory, the Radeon HD 7870 should be 1% quicker than the GeForce GTX 570 overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon HD 7870 should be a lot (about 82%) better 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 just a bit (more or less 9%) better at FSAA than the GeForce GTX 570, and will be capable of handling higher screen resolutions without losing too much performance. (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: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels 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 Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 reach the maximum fill rate.