GeForce 8800 GS vs Radeon R9 M395X

Intro

Compare that to the Radeon R9 M395X, which features a clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS		105 Watts
Radeon R9 M395X		125 Watts
	Difference: 20 Watts (19%)

Memory Bandwidth

Performance-wise, the Radeon R9 M395X should in theory be quite a bit better than the GeForce 8800 GS in general. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 121600 (317%)

Texel Rate

The Radeon R9 M395X should be a lot (more or less 251%) better at AF than the GeForce 8800 GS. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 8800 GS		26400 Mtexels/sec
	Difference: 66144 (251%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M395X is a better choice, by far. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 16536 (251%)

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 max amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.