Radeon HD 7750 vs Radeon RX 590

Intro

Compare all that to the Radeon RX 590, which features clock speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 TAUs 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 590		175 Watts
	Difference: 120 Watts (218%)

Memory Bandwidth

The Radeon RX 590 should theoretically be much faster than the Radeon HD 7750 in general. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 590 will be quite a bit (about 726%) faster with regards to texture filtering than the Radeon HD 7750. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 185936 (726%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 590 is the winner, by far. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 34208 (267%)

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 (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.