GeForce GT 440 3GB vs Radeon HD 6750

Intro

Compare all that to the Radeon HD 6750, which comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 RAM. It features 720 SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 6750		86 Watts
	Difference: 30 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6750 should perform a lot faster than the GeForce GT 440 3GB in general. (explain)

Radeon HD 6750		64000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 20800 (48%)

Texel Rate

The Radeon HD 6750 will be a lot (more or less 83%) more effective at texture filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 6750		26100 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 11844 (83%)

Pixel Rate

The GeForce GT 440 3GB will be a lot (approximately 23%) better at AA than the Radeon HD 6750, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 6750		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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.