Radeon HD 7950 vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which comes with a clock speed of 1168 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 7950		7731 points
	Difference: 4377 (57%)

Zcash Mining Hash Rate

Radeon RX 570		298 Sol/s
Radeon HD 7950		235 Sol/s
	Difference: 63 (27%)

Ethereum Mining Hash Rate

Radeon RX 570		26 Mh/s
Radeon HD 7950		21 Mh/s
	Difference: 5 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 7950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The Radeon HD 7950, in theory, should perform a little bit faster than the Radeon RX 570 in general. (explain)

Radeon HD 7950		240000 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 570 should be quite a bit (more or less 67%) better at AF than the Radeon HD 7950. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 59904 (67%)

Pixel Rate

The Radeon RX 570 is a lot (approximately 46%) faster with regards to AA than the Radeon HD 7950, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 11776 (46%)

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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.