GeForce 8800 GTX vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which comes with a clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit bus, and uses a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce 8800 GTX		155 Watts
	Difference: 30 Watts (24%)

Memory Bandwidth

In theory, the Radeon R9 M395X should be a lot faster than the GeForce 8800 GTX overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 73600 (85%)

Texel Rate

The Radeon R9 M395X should be a lot (about 151%) faster with regards to anisotropic filtering than the GeForce 8800 GTX. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 55744 (151%)

Pixel Rate

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

Radeon R9 M395X		23136 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 9336 (68%)

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 data (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 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 the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.