GeForce 8800 GTS (G92) vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which has core clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 10 Watts (8%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X is 158% quicker than the GeForce 8800 GTS (G92) in general, because of its greater data rate. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 97920 (158%)

Texel Rate

The Radeon R9 M395X is a lot (about 122%) more effective at texture filtering than the GeForce 8800 GTS (G92). (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 50944 (122%)

Pixel Rate

The Radeon R9 M395X should be much (about 122%) better at full screen anti-aliasing than the GeForce 8800 GTS (G92), and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 12736 (122%)

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 data (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface 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 better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.