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Radeon R9 M275X vs Radeon R9 M370X

Intro

The Radeon R9 M275X has a GPU core speed of 900 MHz, and the 2048 MB of GDDR5 memory runs at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon R9 M370X, which comes with core clock speeds of 800 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have the exact same bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The Radeon R9 M275X should be a bit (more or less 13%) more effective at anisotropic filtering than the Radeon R9 M370X. (explain)

Radeon R9 M275X 36000 Mtexels/sec
Radeon R9 M370X 32000 Mtexels/sec
Difference: 4000 (13%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M275X is the winner, but it probably won't make a huge difference. (explain)

Radeon R9 M275X 14400 Mpixels/sec
Radeon R9 M370X 12800 Mpixels/sec
Difference: 1600 (13%)

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 R9 M275X

Amazon.com

Check prices at:

Radeon R9 M370X

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 R9 M275X Radeon R9 M370X
Manufacturer AMD AMD
Year May 1 2014 2015
Code Name Venus XTX Cape Verde
Memory 2048 MB 2048 MB
Core Speed 900 MHz 800 MHz
Memory Speed 4500 MHz 4500 MHz
Power (Max TDP) 50 watts (Unknown) watts
Bandwidth 72000 MB/sec 72000 MB/sec
Texel Rate 36000 Mtexels/sec 32000 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 640 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 M275X

Amazon.com

Check prices at:

Radeon R9 M370X

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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