GeForce 8800 GTS (G80) 320MB vs Radeon R7 M260X

Intro

Compare those specs to the Radeon R7 M260X, which makes use of a 28 nm design. AMD has clocked the core frequency at 825 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this particular card. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M260X should perform a small bit faster than the GeForce 8800 GTS (G80) 320MB overall. (explain)

Radeon R7 M260X		64000 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 640 (1%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB should be a lot (more or less 24%) better at anisotropic filtering than the Radeon R7 M260X. (explain)

GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 4824 (24%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB will be a lot (more or less 55%) faster with regards to full screen anti-aliasing than the Radeon R7 M260X, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 3660 (55%)

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 max amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.