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

Intro

Compare those specifications to the Radeon R7 M260X, which uses a 28 nm design. AMD has clocked the core frequency at 825 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 384 SPUs as well as 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 little bit faster than the GeForce 8800 GTS (G80) 320MB in general. (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 will be a lot (approximately 24%) better at AF 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 is quite a bit (about 55%) more effective at AA than the Radeon R7 M260X, and will be able to handle higher screen resolutions without losing too much performance. (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 maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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