GeForce GT 440 1.5GB vs Radeon HD 3850 1GB

Intro

Compare that to the Radeon HD 3850 1GB, which features a core clock speed of 668 MHz and a GDDR3 memory frequency of 828 MHz. It also features a 256-bit memory bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 16 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

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

In theory, the Radeon HD 3850 1GB will be 23% faster than the GeForce GT 440 1.5GB overall, because of its greater bandwidth. (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 quite a bit (more or less 33%) faster with regards to 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

The GeForce GT 440 1.5GB is much (about 33%) more effective at FSAA than the Radeon HD 3850 1GB, and able to handle higher screen resolutions better. (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 max amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.