Radeon HD 5450 vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which has a clock speed of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 128-bit bus, and makes use of a 14 nm design. It is made up of 1024 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
Radeon RX 560		80 Watts
	Difference: 61 Watts (321%)

Memory Bandwidth

Performance-wise, the Radeon RX 560 should in theory be much better than the Radeon HD 5450 overall. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 101888 (796%)

Texel Rate

The Radeon RX 560 will be a lot (more or less 1346%) better at AF than the Radeon HD 5450. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 70000 (1346%)

Pixel Rate

The Radeon RX 560 is quite a bit (approximately 623%) more effective at AA than the Radeon HD 5450, and will be able to handle higher resolutions better. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 16200 (623%)

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 data (counted in MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 applied in one second. This figure is worked out by multiplying the total texture units of the card 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.