Radeon HD 6790 vs Radeon RX 570

Intro

Compare all that to the Radeon RX 570, which features a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, 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 6790		2150 points
	Difference: 9958 (463%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon RX 570 should theoretically perform much faster than the Radeon HD 6790 in general. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 94976 (71%)

Texel Rate

The Radeon RX 570 is much (about 345%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 115904 (345%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 570 is superior to the Radeon HD 6790, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 23936 (178%)

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 data (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its 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 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 fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.