GeForce 8800 GTS (G80) 320MB vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which comes with a core clock speed of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 128-bit memory bus, and makes use of a 14 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 68 Watts (91%)

Memory Bandwidth

The Radeon RX 460 should theoretically perform a lot faster than the GeForce 8800 GTS (G80) 320MB in general. (explain)

Radeon RX 460		112000 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 48640 (77%)

Texel Rate

The Radeon RX 460 will be much (more or less 148%) better at texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 36416 (148%)

Pixel Rate

The Radeon RX 460 is quite a bit (more or less 70%) more effective at AA than the GeForce 8800 GTS (G80) 320MB, and will be able to handle higher resolutions more effectively. (explain)

Radeon RX 460		17440 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 7180 (70%)

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 information (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher 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 number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.