Radeon HD 5750 512MB vs Radeon R9 290

Intro

Compare that to the Radeon R9 290, which comes with core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2560 SPUs as well as 160 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 290		300 Watts
	Difference: 214 Watts (249%)

Memory Bandwidth

In theory, the Radeon R9 290 is 335% quicker than the Radeon HD 5750 512MB overall, due to its greater bandwidth. (explain)

Radeon R9 290		320000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 246400 (335%)

Texel Rate

The Radeon R9 290 is quite a bit (more or less 408%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon R9 290		128000 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 102800 (408%)

Pixel Rate

The Radeon R9 290 will be quite a bit (about 357%) faster with regards to AA than the Radeon HD 5750 512MB, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 290		51200 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 40000 (357%)

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 maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.