GeForce 8800 GT 512MB vs Radeon RX 480

Intro

Compare those specs to the Radeon RX 480, which has a core clock speed of 1120 MHz and a GDDR5 memory speed of 2000 MHz. It also features a 256-bit memory bus, and makes use of a 14 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
Radeon RX 480		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

Theoretically, the Radeon RX 480 should perform much faster than the GeForce 8800 GT 512MB in general. (explain)

Radeon RX 480		262144 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 204544 (355%)

Texel Rate

The Radeon RX 480 should be much (approximately 380%) faster with regards to texture filtering than the GeForce 8800 GT 512MB. (explain)

Radeon RX 480		161280 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 127680 (380%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 480 is the winner, and very much so. (explain)

Radeon RX 480		35840 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 26240 (273%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.