Radeon HD 7750 vs Radeon RX 470 4GB

Intro

Compare that to the Radeon RX 470 4GB, which has a core clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit bus, and uses a 14 nm design. It is comprised of 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 7750		55 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 65 Watts (118%)

Memory Bandwidth

In theory, the Radeon RX 470 4GB is 193% faster than the Radeon HD 7750 in general, due to its higher data rate. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 139200 (193%)

Texel Rate

The Radeon RX 470 4GB is much (approximately 363%) more effective at texture filtering than the Radeon HD 7750. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 92928 (363%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 470 4GB is superior to the Radeon HD 7750, by far. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 16832 (132%)

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 max amount of data (in units of MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.