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Geforce GTX 670 vs Radeon R9 M395X

Intro

The Geforce GTX 670 features a GPU core speed of 915 MHz, and the 2048 MB of GDDR5 memory runs at 1500 MHz through a 256-bit bus. It also is made up of 1344 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 M395X, which makes use of a 28 nm design. AMD has set the core speed at 723 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this card. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X 125 Watts
Geforce GTX 670 170 Watts
Difference: 45 Watts (36%)

Memory Bandwidth

Theoretically, the Geforce GTX 670 should be just a bit faster than the Radeon R9 M395X overall. (explain)

Geforce GTX 670 192000 MB/sec
Radeon R9 M395X 160000 MB/sec
Difference: 32000 (20%)

Texel Rate

The Geforce GTX 670 will be just a bit (about 11%) faster with regards to AF than the Radeon R9 M395X. (explain)

Geforce GTX 670 102480 Mtexels/sec
Radeon R9 M395X 92544 Mtexels/sec
Difference: 9936 (11%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 670 is the winner, and very much so. (explain)

Geforce GTX 670 29280 Mpixels/sec
Radeon R9 M395X 23136 Mpixels/sec
Difference: 6144 (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 670

Amazon.com

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Radeon R9 M395X

Amazon.com

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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 670 Radeon R9 M395X
Manufacturer nVidia AMD
Year May 2012 2015
Code Name GK104 Tonga
Memory 2048 MB 4096 MB
Core Speed 915 MHz 723 MHz
Memory Speed 6000 MHz 5000 MHz
Power (Max TDP) 170 watts 125 watts
Bandwidth 192000 MB/sec 160000 MB/sec
Texel Rate 102480 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 1344 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 3540 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount 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 one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Geforce GTX 670

Amazon.com

Check prices at:

Radeon R9 M395X

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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