GeForce GT 440 1.5GB vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which comes with a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 30 Watts (54%)

Memory Bandwidth

In theory, the Radeon HD 6750 1GB should be 48% faster than the GeForce GT 440 1.5GB in general, because of its higher bandwidth. (explain)

Radeon HD 6750 1GB		64000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 20800 (48%)

Texel Rate

The Radeon HD 6750 1GB should be a lot (more or less 83%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 11844 (83%)

Pixel Rate

The GeForce GT 440 1.5GB should be a lot (about 23%) more effective at anti-aliasing than the Radeon HD 6750 1GB, and also able to handle higher resolutions more effectively. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 2656 (23%)

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 largest amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could 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 ROPs 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.