Radeon HD 5670 vs Radeon HD 7750

Intro

Compare those specs to the Radeon HD 7750, which features core speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon HD 5670		61 Watts
	Difference: 6 Watts (11%)

Memory Bandwidth

In theory, the Radeon HD 7750 should perform a small bit faster than the Radeon HD 5670 in general. (explain)

Radeon HD 7750		72000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 8000 (13%)

Texel Rate

The Radeon HD 7750 will be quite a bit (more or less 65%) faster with regards to anisotropic filtering than the Radeon HD 5670. (explain)

Radeon HD 7750		25600 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 10100 (65%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7750 is a better choice, by far. (explain)

Radeon HD 7750		12800 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 6600 (106%)

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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.