GeForce GT 440 1.5GB vs Radeon HD 3850 1GB

Intro

Compare those specs to the Radeon HD 3850 1GB, which features clock speeds of 668 MHz on the GPU, and 828 MHz on the 1024 MB of GDDR3 memory. It features 320(64x5) SPUs as well as 16 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 3850 1GB		75 Watts
	Difference: 19 Watts (34%)

Memory Bandwidth

The Radeon HD 3850 1GB, in theory, should perform much faster than the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 3850 1GB		52992 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 9792 (23%)

Texel Rate

The GeForce GT 440 1.5GB should be a lot (approximately 33%) faster with regards to anisotropic filtering than the Radeon HD 3850 1GB. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
Radeon HD 3850 1GB		10688 Mtexels/sec
	Difference: 3568 (33%)

Pixel Rate

The GeForce GT 440 1.5GB should be quite a bit (more or less 33%) faster with regards to anti-aliasing than the Radeon HD 3850 1GB, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 3850 1GB		10688 Mpixels/sec
	Difference: 3568 (33%)

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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a 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 calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.