Radeon HD 5830 vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which features a core clock speed of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 14 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 5830		175 Watts
	Difference: 95 Watts (119%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 is 12% faster than the Radeon RX 560 in general, due to its greater bandwidth. (explain)

Radeon HD 5830		128000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 13312 (12%)

Texel Rate

The Radeon RX 560 will be quite a bit (approximately 68%) better at AF than the Radeon HD 5830. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 30400 (68%)

Pixel Rate

The Radeon RX 560 should be a lot (about 47%) faster with regards to AA than the Radeon HD 5830, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 6000 (47%)

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 information (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.