Radeon HD 7750 vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which features clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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

Theoretically, the Radeon RX 470 4GB should be a lot faster than the Radeon HD 7750 overall. (explain)

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

Texel Rate

The Radeon RX 470 4GB should be a lot (about 363%) better at anisotropic 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 using a high screen resolution is important to you, then the Radeon RX 470 4GB is superior to the Radeon HD 7750, by a large margin. (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 largest amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a 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 Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.