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Radeon R9 380X vs Radeon R9 M295X

Intro

The Radeon R9 380X has clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Compare those specifications to the Radeon R9 M295X, which features a clock frequency of 750 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
Radeon R9 380X 190 Watts
Difference: 65 Watts (52%)

Memory Bandwidth

In theory, the Radeon R9 380X will be 4% faster than the Radeon R9 M295X in general, because of its higher bandwidth. (explain)

Radeon R9 380X 182400 MB/sec
Radeon R9 M295X 176000 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon R9 380X will be much (approximately 29%) more effective at AF than the Radeon R9 M295X. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon R9 M295X 96000 Mtexels/sec
Difference: 28160 (29%)

Pixel Rate

The Radeon R9 380X will be quite a bit (more or less 29%) better at FSAA than the Radeon R9 M295X, and also will be capable of handling higher resolutions better. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 7040 (29%)

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 380X

Amazon.com

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Radeon R9 M295X

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 380X Radeon R9 M295X
Manufacturer AMD AMD
Year November 2015 2014
Code Name Tonga XT Unknown
Memory 4096 MB 4096 MB
Core Speed 970 MHz 750 MHz
Memory Speed 5700 MHz 5500 MHz
Power (Max TDP) 190 watts 125 watts
Bandwidth 182400 MB/sec 176000 MB/sec
Texel Rate 124160 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 31040 Mpixels/sec 24000 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 5000 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially 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 R9 380X

Amazon.com

Check prices at:

Radeon R9 M295X

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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