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GeForce GTX 850M vs Radeon R9 M370X

Intro

The GeForce GTX 850M has a GPU clock speed of 876 MHz, and the 2048 MB of DDR3 memory is set to run at 1000 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Compare all that to the Radeon R9 M370X, which features a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M370X should in theory perform much faster than the GeForce GTX 850M overall. (explain)

Radeon R9 M370X 72000 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 40000 (125%)

Texel Rate

The GeForce GTX 850M will be a little bit (approximately 10%) more effective at anisotropic filtering than the Radeon R9 M370X. (explain)

GeForce GTX 850M 35040 Mtexels/sec
Radeon R9 M370X 32000 Mtexels/sec
Difference: 3040 (10%)

Pixel Rate

The GeForce GTX 850M is a little bit (about 10%) more effective at FSAA than the Radeon R9 M370X, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 850M 14016 Mpixels/sec
Radeon R9 M370X 12800 Mpixels/sec
Difference: 1216 (10%)

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 850M

Amazon.com

Check prices at:

Radeon R9 M370X

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 850M Radeon R9 M370X
Manufacturer nVidia AMD
Year March 12 2014 2015
Code Name GM107 Cape Verde
Memory 2048 MB 2048 MB
Core Speed 876 MHz 800 MHz
Memory Speed 2000 MHz 4500 MHz
Power (Max TDP) 40 watts (Unknown) watts
Bandwidth 32000 MB/sec 72000 MB/sec
Texel Rate 35040 Mtexels/sec 32000 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 640 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type DDR3 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 maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 850M

Amazon.com

Check prices at:

Radeon R9 M370X

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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