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Radeon R9 380 4G vs Radeon R9 M375

Intro

The Radeon R9 380 4G comes with a GPU core clock speed of 970 MHz, and the 4096 MB of GDDR5 memory runs at 1425 MHz through a 256-bit bus. It also is comprised of 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare that to the Radeon R9 M375, which comes with core speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should theoretically be a lot superior to the Radeon R9 M375 overall. (explain)

Radeon R9 380 4G 182400 MB/sec
Radeon R9 M375 35200 MB/sec
Difference: 147200 (418%)

Texel Rate

The Radeon R9 380 4G will be a lot (approximately 168%) faster with regards to anisotropic filtering than the Radeon R9 M375. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon R9 M375 40600 Mtexels/sec
Difference: 68040 (168%)

Pixel Rate

The Radeon R9 380 4G is quite a bit (more or less 91%) better at AA than the Radeon R9 M375, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon R9 380 4G 31040 Mpixels/sec
Radeon R9 M375 16240 Mpixels/sec
Difference: 14800 (91%)

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

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Radeon R9 M375

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 M375
Manufacturer AMD AMD
Year June 2015 2015
Code Name Antigua PRO Cape Verde
Memory 4096 MB 4096 MB
Core Speed 970 MHz 1015 MHz
Memory Speed 5700 MHz 2200 MHz
Power (Max TDP) 190 watts (Unknown) watts
Bandwidth 182400 MB/sec 35200 MB/sec
Texel Rate 108640 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 31040 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 1792 640
Texture Mapping Units 112 40
Render Output Units 32 16
Bus Type GDDR5 DDR3
Bus Width 256-bit 128-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 12
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 worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Radeon R9 380 4G

Amazon.com

Check prices at:

Radeon R9 M375

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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