Radeon HD 5750 512MB vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which has core speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 34 Watts (40%)

Memory Bandwidth

As far as performance goes, the Radeon RX 470 4GB should in theory be quite a bit better than the Radeon HD 5750 512MB overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 137600 (187%)

Texel Rate

The Radeon RX 470 4GB should be much (more or less 370%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 93328 (370%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 4GB is a better choice, and very much so. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 5750 512MB		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 largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core clock 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 amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.