GeForce 8800 GTS (G80) 640MB vs Radeon R9 Fury X

Intro

Compare that to the Radeon R9 Fury X, which has GPU clock speed of 1050 MHz, and 4096 MB of HBM RAM running at 500 MHz through a 4096-bit bus. It also is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 640MB		143 Watts
Radeon R9 Fury X		275 Watts
	Difference: 132 Watts (92%)

Memory Bandwidth

Theoretically, the Radeon R9 Fury X should be quite a bit faster than the GeForce 8800 GTS (G80) 640MB in general. (explain)

Radeon R9 Fury X		512000 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 448640 (708%)

Texel Rate

The Radeon R9 Fury X will be much (about 992%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

Radeon R9 Fury X		268800 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 244176 (992%)

Pixel Rate

The Radeon R9 Fury X will be quite a bit (about 555%) faster with regards to full screen anti-aliasing than the GeForce 8800 GTS (G80) 640MB, and will be able to handle higher resolutions more effectively. (explain)

Radeon R9 Fury X		67200 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 56940 (555%)

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 megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.