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Radeon HD 7950 vs Radeon R9 M375X

Intro

The Radeon HD 7950 uses a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory works at a speed of 1250 MHz on this card. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

Compare those specifications to the Radeon R9 M375X, which has a core clock speed of 1015 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7950, in theory, should perform a lot faster than the Radeon R9 M375X in general. (explain)

Radeon HD 7950 240000 MB/sec
Radeon R9 M375X 72000 MB/sec
Difference: 168000 (233%)

Texel Rate

The Radeon HD 7950 will be a lot (approximately 121%) faster with regards to anisotropic filtering than the Radeon R9 M375X. (explain)

Radeon HD 7950 89600 Mtexels/sec
Radeon R9 M375X 40600 Mtexels/sec
Difference: 49000 (121%)

Pixel Rate

The Radeon HD 7950 should be quite a bit (approximately 58%) better at anti-aliasing than the Radeon R9 M375X, and capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7950 25600 Mpixels/sec
Radeon R9 M375X 16240 Mpixels/sec
Difference: 9360 (58%)

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

Check prices at:

Radeon R9 M375X

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 R9 M375X
Manufacturer AMD AMD
Year January 2012 2015
Code Name Tahiti Pro Cape Verde
Memory 1536 MB 4096 MB
Core Speed 800 MHz 1015 MHz
Memory Speed 5000 MHz 4500 MHz
Power (Max TDP) 200 watts (Unknown) watts
Bandwidth 240000 MB/sec 72000 MB/sec
Texel Rate 89600 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 1792 640
Texture Mapping Units 112 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 4313 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 7950

Amazon.com

Check prices at:

Radeon R9 M375X

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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