GeForce 8800 GTX vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this particular model. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M385X, in theory, should be a little bit faster than the GeForce 8800 GTX overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 9600 (11%)

Texel Rate

The Radeon R9 M385X is a lot (about 67%) faster with regards to anisotropic filtering than the GeForce 8800 GTX. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 24800 (67%)

Pixel Rate

The Radeon R9 M385X should be much (about 28%) faster with regards to FSAA than the GeForce 8800 GTX, and should be capable of handling higher screen resolutions better. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 3800 (28%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video 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 maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.