Radeon HD 5750 1GB vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which has a core clock frequency of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also makes use of a 256-bit memory bus, and makes use of a 14 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon RX 470		120 Watts
	Difference: 34 Watts (40%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 is 187% quicker than the Radeon HD 5750 1GB overall, because of its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 137600 (187%)

Texel Rate

The Radeon RX 470 will be quite a bit (approximately 370%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 93328 (370%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 is the winner, by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 18432 (165%)

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 maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.