Geforce GTX 680 vs Radeon R9 M365X

Intro

Compare those specifications to the Radeon R9 M365X, which has core clock speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Geforce GTX 680 should perform much faster than the Radeon R9 M365X overall. (explain)

Geforce GTX 680		192256 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 120256 (167%)

Texel Rate

The Geforce GTX 680 is much (approximately 248%) more effective at anisotropic filtering than the Radeon R9 M365X. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 91768 (248%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (about 118%) faster with regards to anti-aliasing than the Radeon R9 M365X, and should be able to handle higher resolutions more effectively. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 17392 (118%)

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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.