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Radeon R9 380 4G vs Radeon R9 M295X

Intro

The Radeon R9 380 4G has core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare all that to the Radeon R9 M295X, which uses a 28 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this particular model. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
Radeon R9 380 4G 190 Watts
Difference: 65 Watts (52%)

Memory Bandwidth

Theoretically, the Radeon R9 380 4G should perform a bit faster than the Radeon R9 M295X in general. (explain)

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

Texel Rate

The Radeon R9 380 4G will be a small bit (more or less 13%) faster with regards to AF than the Radeon R9 M295X. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon R9 M295X 96000 Mtexels/sec
Difference: 12640 (13%)

Pixel Rate

The Radeon R9 380 4G will be quite a bit (more or less 29%) more effective at AA than the Radeon R9 M295X, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 380 4G 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 380 4G

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.

Specifications

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Model Radeon R9 380 4G Radeon R9 M295X
Manufacturer AMD AMD
Year June 2015 2014
Code Name Antigua PRO 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 108640 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 31040 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1792 2048
Texture Mapping Units 112 128
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 ×16 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 max amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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

Hide Prices

Radeon R9 380 4G

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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