Geforce GTX 780 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which has clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. 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

As far as performance goes, the Geforce GTX 780 should theoretically be a lot better than the Radeon R9 M375 overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 253184 (719%)

Texel Rate

The Geforce GTX 780 will be quite a bit (approximately 308%) better at anisotropic filtering than the Radeon R9 M375. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 125096 (308%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 780 is superior to the Radeon R9 M375, by a large margin. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon R9 M375		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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core 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 processed in one second.

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