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GeForce GTX 860M vs Radeon R9 M375X

Intro

The GeForce GTX 860M has clock speeds of 797 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1152 SPUs as well as 96 Texture Address Units and 16 Rasterization Operator Units.

Compare all that to the Radeon R9 M375X, which has core clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375X should perform a bit faster than the GeForce GTX 860M in general. (explain)

Radeon R9 M375X 72000 MB/sec
GeForce GTX 860M 64000 MB/sec
Difference: 8000 (13%)

Texel Rate

The GeForce GTX 860M will be quite a bit (more or less 88%) better at AF than the Radeon R9 M375X. (explain)

GeForce GTX 860M 76512 Mtexels/sec
Radeon R9 M375X 40600 Mtexels/sec
Difference: 35912 (88%)

Pixel Rate

The Radeon R9 M375X will be quite a bit (approximately 27%) more effective at anti-aliasing than the GeForce GTX 860M, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 M375X 16240 Mpixels/sec
GeForce GTX 860M 12752 Mpixels/sec
Difference: 3488 (27%)

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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GeForce GTX 860M

Amazon.com

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Radeon R9 M375X

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 GeForce GTX 860M Radeon R9 M375X
Manufacturer nVidia AMD
Year March 12 2014 2015
Code Name GM107 Cape Verde
Memory 4096 MB 4096 MB
Core Speed 797 MHz 1015 MHz
Memory Speed 4000 MHz 4500 MHz
Power (Max TDP) 45 watts (Unknown) watts
Bandwidth 64000 MB/sec 72000 MB/sec
Texel Rate 76512 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 12752 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 1152 640
Texture Mapping Units 96 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 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 860M

Amazon.com

Check prices at:

Radeon R9 M375X

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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