GeForce GT 440 1.5GB vs Radeon HD 3850 1GB

Intro

Compare those specifications to the Radeon HD 3850 1GB, which has a GPU core clock speed of 668 MHz, and 1024 MB of GDDR3 memory running at 828 MHz through a 256-bit bus. It also features 320(64x5) Stream Processors, 16 TAUs, and 16 Raster Operation 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

As far as performance goes, the Radeon HD 3850 1GB should in theory be quite a bit better 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 (more or less 33%) better at AF 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

If using a high screen resolution is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon HD 3850 1GB, by far. (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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.