Radeon HD 5750 1GB vs Radeon HD 6750

Intro

Compare all that to the Radeon HD 6750, which uses a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this specific card. It features 720 SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the Radeon HD 5750 1GB should theoretically be a little bit better than the Radeon HD 6750 in general. (explain)

Radeon HD 5750 1GB		73600 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 9600 (15%)

Texel Rate

The Radeon HD 6750 should be a small bit (more or less 4%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

Radeon HD 6750		26100 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 900 (4%)

Pixel Rate

The Radeon HD 6750 should be a small bit (more or less 4%) better at AA than the Radeon HD 5750 1GB, and able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6750		11600 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 400 (4%)

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 (counted in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the 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 card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.