GeForce GTS 250 512MB vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which features core clock speeds of 1175 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 1024 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 65 Watts (81%)

Memory Bandwidth

As far as performance goes, the Radeon RX 560 should theoretically be quite a bit superior to the GeForce GTS 250 512MB overall. (explain)

Radeon RX 560		114688 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 44288 (63%)

Texel Rate

The Radeon RX 560 is a lot (about 59%) faster with regards to AF than the GeForce GTS 250 512MB. (explain)

Radeon RX 560		75200 Mtexels/sec
GeForce GTS 250 512MB		47232 Mtexels/sec
	Difference: 27968 (59%)

Pixel Rate

The Radeon RX 560 will be much (approximately 59%) faster with regards to full screen anti-aliasing than the GeForce GTS 250 512MB, and should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 560		18800 Mpixels/sec
GeForce GTS 250 512MB		11808 Mpixels/sec
	Difference: 6992 (59%)

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 (counted in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at 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 the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.