Radeon HD 7870 XT vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which makes use of a 14 nm design. AMD has set the core speed at 1168 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this specific model. It features 2048 SPUs along with 128 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 RX 570		12108 points
Radeon HD 7870 XT		6390 points
	Difference: 5718 (89%)

Ethereum Mining Hash Rate

Radeon RX 570		26 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 11 (73%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 35 Watts (23%)

Memory Bandwidth

The Radeon RX 570 should theoretically be a bit faster than the Radeon HD 7870 XT in general. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 37376 (19%)

Texel Rate

The Radeon RX 570 is much (about 68%) better at anisotropic filtering than the Radeon HD 7870 XT. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 60704 (68%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 570 is the winner, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 7776 (26%)

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 largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.