GeForce GTX 650 vs Radeon HD 6750

Intro

Compare those specs to the Radeon HD 6750, which uses a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM is set to run at a frequency 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

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon HD 6750		86 Watts
	Difference: 22 Watts (34%)

Memory Bandwidth

The GeForce GTX 650 should in theory be quite a bit faster than the Radeon HD 6750 in general. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 16000 (25%)

Texel Rate

The GeForce GTX 650 is quite a bit (about 30%) more effective at AF than the Radeon HD 6750. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 7756 (30%)

Pixel Rate

The GeForce GTX 650 is much (more or less 46%) faster with regards to AA than the Radeon HD 6750, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 5328 (46%)

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 max amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.