GeForce GT 440 3GB vs Radeon HD 5770

Intro

Compare that to the Radeon HD 5770, which makes use of a 40 nm design. AMD has set the core speed at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this specific model. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 5770		108 Watts
	Difference: 52 Watts (93%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 is 78% faster than the GeForce GT 440 3GB in general, because of its greater bandwidth. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 33600 (78%)

Texel Rate

The Radeon HD 5770 will be much (approximately 138%) faster with regards to AF than the GeForce GT 440 3GB. (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 19744 (138%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 440 3GB is a better choice, though only just barely. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 656 (5%)

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 (counted in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number 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 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 number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.