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Radeon R9 M295X vs Radeon R9 M395X

Intro

The Radeon R9 M295X comes with a GPU clock speed of 750 MHz, and the 4096 MB of GDDR5 RAM runs at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 M395X, which features core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon R9 M295X should in theory be just a bit faster than the Radeon R9 M395X overall. (explain)

Radeon R9 M295X 176000 MB/sec
Radeon R9 M395X 160000 MB/sec
Difference: 16000 (10%)

Texel Rate

The Radeon R9 M295X should be a little bit (approximately 4%) faster with regards to AF than the Radeon R9 M395X. (explain)

Radeon R9 M295X 96000 Mtexels/sec
Radeon R9 M395X 92544 Mtexels/sec
Difference: 3456 (4%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M295X is superior to the Radeon R9 M395X, but only just. (explain)

Radeon R9 M295X 24000 Mpixels/sec
Radeon R9 M395X 23136 Mpixels/sec
Difference: 864 (4%)

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 M295X

Amazon.com

Check prices at:

Radeon R9 M395X

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 M295X Radeon R9 M395X
Manufacturer AMD AMD
Year 2014 2015
Code Name Unknown Tonga
Memory 4096 MB 4096 MB
Core Speed 750 MHz 723 MHz
Memory Speed 5500 MHz 5000 MHz
Power (Max TDP) 125 watts 125 watts
Bandwidth 176000 MB/sec 160000 MB/sec
Texel Rate 96000 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 24000 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 2048 2048
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 M295X

Amazon.com

Check prices at:

Radeon R9 M395X

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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