Radeon HD 5570 vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which comes with core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs along with 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 43 Watts (100%)

Memory Bandwidth

In theory, the Radeon HD 6750 1GB will be 122% quicker than the Radeon HD 5570 overall, due to its greater data rate. (explain)

Radeon HD 6750 1GB		64000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 6750 1GB is quite a bit (more or less 101%) faster with regards to AF than the Radeon HD 5570. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 13100 (101%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6750 1GB is superior to the Radeon HD 5570, by a large margin. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 6400 (123%)

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 (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.