Radeon HD 5750 512MB vs Radeon RX 470 4GB

Intro

Compare that to the Radeon RX 470 4GB, which features a clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also makes use of a 256-bit memory bus, and makes use of a 14 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon RX 470 4GB will be 187% faster than the Radeon HD 5750 512MB overall, due to its greater bandwidth. (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 is a lot (approximately 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 running with a high screen resolution is important to you, then the Radeon RX 470 4GB is a better choice, by a large margin. (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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a 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 fill 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 ability to reach the max fill rate.