Radeon HD 5750 1GB vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which has a clock speed of 850 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon R9 280X		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

As far as performance goes, the Radeon R9 280X should in theory be quite a bit superior to the Radeon HD 5750 1GB in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 214400 (291%)

Texel Rate

The Radeon R9 280X will be much (approximately 332%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 83600 (332%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 280X is the winner, by a large margin. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 16000 (143%)

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 (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics 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 number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.