Radeon HD 5750 512MB vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which comes with clock speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 189 Watts (220%)

Memory Bandwidth

The Radeon R9 390X 8G should theoretically be a lot faster than the Radeon HD 5750 512MB in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 310400 (422%)

Texel Rate

The Radeon R9 390X 8G is much (about 633%) better at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 159600 (633%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 390X 8G is superior to the Radeon HD 5750 512MB, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 56000 (500%)

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 max amount of data (measured in MB per second) that can be transported across 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 RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.