GeForce GT 440 1.5GB vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this specific card. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

The Radeon HD 6750 1GB should in theory perform much faster than the GeForce GT 440 1.5GB in general. (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 (about 83%) better at texture 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 will be much (more or less 23%) faster with regards to anti-aliasing than the Radeon HD 6750 1GB, and should be capable of handling higher screen resolutions better. (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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.