GeForce GT 440 1.5GB vs Radeon HD 3850 256MB

Intro

Compare all that to the Radeon HD 3850 256MB, which features core speeds of 668 MHz on the GPU, and 828 MHz on the 256 MB of GDDR3 memory. It features 320(64x5) SPUs as well as 16 TAUs 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 3850 256MB		75 Watts
	Difference: 19 Watts (34%)

Memory Bandwidth

Theoretically, the Radeon HD 3850 256MB should be much faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 3850 256MB		52992 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 9792 (23%)

Texel Rate

The GeForce GT 440 1.5GB should be quite a bit (more or less 33%) faster with regards to AF than the Radeon HD 3850 256MB. (explain)

GeForce GT 440 1.5GB		14256 Mtexels/sec
Radeon HD 3850 256MB		10688 Mtexels/sec
	Difference: 3568 (33%)

Pixel Rate

The GeForce GT 440 1.5GB will be quite a bit (about 33%) faster with regards to FSAA than the Radeon HD 3850 256MB, and able to handle higher screen resolutions more effectively. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 3850 256MB		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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.