Radeon HD 7750 vs Radeon RX 480 4GB

Intro

Compare those specs to the Radeon RX 480 4GB, which has core speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2304 SPUs along with 144 TAUs 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 480 4GB		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

In theory, the Radeon RX 480 4GB is 219% quicker than the Radeon HD 7750 in general, due to its greater bandwidth. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 157376 (219%)

Texel Rate

The Radeon RX 480 4GB will be much (about 530%) faster with regards to AF than the Radeon HD 7750. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 135680 (530%)

Pixel Rate

The Radeon RX 480 4GB will be quite a bit (more or less 180%) better at full screen anti-aliasing than the Radeon HD 7750, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 23040 (180%)

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 information (counted in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.