GeForce 8800 Ultra vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which comes with clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 96 Watts (128%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 is 8% quicker than the GeForce 8800 Ultra in general, due to its higher data rate. (explain)

Radeon RX 460		112000 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 8320 (8%)

Texel Rate

The Radeon RX 460 will be much (approximately 56%) better at anisotropic filtering than the GeForce 8800 Ultra. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 21872 (56%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 460 is the winner, but only just. (explain)

Radeon RX 460		17440 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 2752 (19%)

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 largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.