GeForce 8800 GTX vs Radeon R9 M365X

Intro

Compare those specs to the Radeon R9 M365X, which comes with a core clock frequency of 925 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 GTX should be 20% faster than the Radeon R9 M365X overall, because of its higher bandwidth. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 14400 (20%)

Texel Rate

The Radeon R9 M365X is a small bit (approximately 1%) better at anisotropic filtering than the GeForce 8800 GTX. (explain)

Radeon R9 M365X		37000 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 200 (1%)

Pixel Rate

The Radeon R9 M365X should be just a bit (more or less 7%) more effective at anti-aliasing than the GeForce 8800 GTX, and will be able to handle higher resolutions better. (explain)

Radeon R9 M365X		14800 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 1000 (7%)

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 max amount of information (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core 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 in a second.

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