GeForce 8800 GTS (G80) 640MB vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which comes with a clock frequency of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also features a 256-bit memory bus, and makes use of a 14 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce 8800 GTS (G80) 640MB		143 Watts
	Difference: 23 Watts (19%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should in theory be much superior to the GeForce 8800 GTS (G80) 640MB overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 147840 (233%)

Texel Rate

The Radeon RX 470 4GB is much (about 381%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 640MB. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 93904 (381%)

Pixel Rate

The Radeon RX 470 4GB is quite a bit (approximately 189%) faster with regards to anti-aliasing than the GeForce 8800 GTS (G80) 640MB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 19372 (189%)

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 largest amount of data (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.