GeForce 8500 GT vs Radeon RX 560

Intro

Compare all that to the Radeon RX 560, which has a GPU core clock speed of 1175 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also features 1024 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
Radeon RX 560		80 Watts
	Difference: 35 Watts (78%)

Memory Bandwidth

In theory, the Radeon RX 560 is 796% quicker than the GeForce 8500 GT overall, due to its higher data rate. (explain)

Radeon RX 560		114688 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 101888 (796%)

Texel Rate

The Radeon RX 560 will be quite a bit (about 1989%) more effective at anisotropic filtering than the GeForce 8500 GT. (explain)

Radeon RX 560		75200 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 71600 (1989%)

Pixel Rate

The Radeon RX 560 should be much (more or less 944%) better at AA than the GeForce 8500 GT, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 560		18800 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 17000 (944%)

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 megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.