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Radeon HD 7950 vs Radeon R9 M375X

Intro

The Radeon HD 7950 features a GPU core speed of 800 MHz, and the 1536 MB of GDDR5 memory runs at 1250 MHz through a 384-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 M375X, which features clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7950 should perform a lot faster than the Radeon R9 M375X overall. (explain)

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

Texel Rate

The Radeon HD 7950 should be quite a bit (approximately 121%) more effective at AF 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 will be much (about 58%) faster with regards to AA than the Radeon R9 M375X, and also should be able to handle higher screen 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

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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