GeForce 8500 GT vs Radeon RX 560

Intro

Compare those specs to the Radeon RX 560, which has GPU clock speed of 1175 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, 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 should be 796% faster than the GeForce 8500 GT overall, because of 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 is much (about 1989%) faster with regards to 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 will be quite a bit (about 944%) better at AA than the GeForce 8500 GT, and also able to handle higher resolutions better. (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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units 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 most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.