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GeForce GTX 870M vs Radeon R9 M375

Intro

The GeForce GTX 870M has core speeds of 941 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.

Compare that to the Radeon R9 M375, which has GPU core speed of 1015 MHz, and 4096 MB of DDR3 memory running at 1100 MHz through a 128-bit bus. It also features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 870M should theoretically be quite a bit faster than the Radeon R9 M375 in general. (explain)

GeForce GTX 870M 96000 MB/sec
Radeon R9 M375 35200 MB/sec
Difference: 60800 (173%)

Texel Rate

The GeForce GTX 870M will be a lot (approximately 160%) faster with regards to anisotropic filtering than the Radeon R9 M375. (explain)

GeForce GTX 870M 105392 Mtexels/sec
Radeon R9 M375 40600 Mtexels/sec
Difference: 64792 (160%)

Pixel Rate

The GeForce GTX 870M is a lot (more or less 39%) more effective at full screen anti-aliasing than the Radeon R9 M375, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 870M 22584 Mpixels/sec
Radeon R9 M375 16240 Mpixels/sec
Difference: 6344 (39%)

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 870M

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.

Specifications

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Model GeForce GTX 870M Radeon R9 M375
Manufacturer nVidia AMD
Year March 12 2014 2015
Code Name GK104 Cape Verde
Memory 3072 MB 4096 MB
Core Speed 941 MHz 1015 MHz
Memory Speed 4000 MHz 2200 MHz
Power (Max TDP) 110 watts (Unknown) watts
Bandwidth 96000 MB/sec 35200 MB/sec
Texel Rate 105392 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 22584 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 1344 640
Texture Mapping Units 112 40
Render Output Units 24 16
Bus Type GDDR5 DDR3
Bus Width 192-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 largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 video card can possibly write to the local memory per 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 870M

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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