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Geforce GTX 780 vs Radeon R9 M375X

Intro

The Geforce GTX 780 uses a 28 nm design. nVidia has set the core frequency at 863 MHz. The GDDR5 memory runs at a speed of 1502 MHz on this particular card. It features 2304 SPUs as well as 192 TAUs and 48 Rasterization Operator Units.

Compare all of that to the Radeon R9 M375X, which features a clock frequency of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 780 should theoretically be quite a bit faster than the Radeon R9 M375X in general. (explain)

Geforce GTX 780 288384 MB/sec
Radeon R9 M375X 72000 MB/sec
Difference: 216384 (301%)

Texel Rate

The Geforce GTX 780 will be much (more or less 308%) better at AF than the Radeon R9 M375X. (explain)

Geforce GTX 780 165696 Mtexels/sec
Radeon R9 M375X 40600 Mtexels/sec
Difference: 125096 (308%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 780 is the winner, by a large margin. (explain)

Geforce GTX 780 41424 Mpixels/sec
Radeon R9 M375X 16240 Mpixels/sec
Difference: 25184 (155%)

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 780

Amazon.com

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Radeon R9 M375X

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 780 Radeon R9 M375X
Manufacturer nVidia AMD
Year May 2013 2015
Code Name GK110 Cape Verde
Memory 3072 MB 4096 MB
Core Speed 863 MHz 1015 MHz
Memory Speed 6008 MHz 4500 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 288384 MB/sec 72000 MB/sec
Texel Rate 165696 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 41424 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 2304 640
Texture Mapping Units 192 40
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 7080 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Geforce GTX 780

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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