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Radeon HD 7950 vs Radeon RX 570

Intro

The Radeon HD 7950 uses a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this specific card. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare that to the Radeon RX 570, which features core clock speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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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

Performance-wise, the Radeon HD 7950 should theoretically be a little bit superior to 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 will be a lot (approximately 67%) more effective at anisotropic filtering than the Radeon HD 7950. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 570 is superior to the Radeon HD 7950, and very much so. (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

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Radeon HD 7950

Amazon.com

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Radeon RX 570

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7950 Radeon RX 570
Manufacturer AMD AMD
Year January 2012 April 2017
Code Name Tahiti Pro Polaris 20
Memory 1536 MB 4096 MB
Core Speed 800 MHz 1168 MHz
Memory Speed 5000 MHz 7000 MHz
Power (Max TDP) 200 watts 150 watts
Bandwidth 240000 MB/sec 229376 MB/sec
Texel Rate 89600 Mtexels/sec 149504 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 37376 Mpixels/sec
Unified Shaders 1792 2048
Texture Mapping Units 112 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 14 nm
Transistors 4313 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 7950

Amazon.com

Check prices at:

Radeon RX 570

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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