Radeon HD 6870 vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which uses a 14 nm design. AMD has set the core speed at 1168 MHz. The GDDR5 memory runs at a speed of 1750 MHz on this specific card. It features 2048 SPUs along with 128 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 RX 570		12108 points
Radeon HD 6870		2870 points
	Difference: 9238 (322%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 6870		151 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 570 should be 71% faster than the Radeon HD 6870 in general, because of its higher bandwidth. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6870		134400 MB/sec
	Difference: 94976 (71%)

Texel Rate

The Radeon RX 570 will be a lot (about 197%) faster with regards to anisotropic filtering than the Radeon HD 6870. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6870		50400 Mtexels/sec
	Difference: 99104 (197%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 570 is superior to the Radeon HD 6870, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6870		28800 Mpixels/sec
	Difference: 8576 (30%)

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 maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.