GeForce GT 440 3GB vs Radeon HD 4670 1GB

Intro

Compare those specs to the Radeon HD 4670 1GB, which features a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory speed of 1100 MHz. It also features a 128-bit bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 4670 1GB		70 Watts
	Difference: 14 Watts (25%)

Memory Bandwidth

Theoretically, the GeForce GT 440 3GB should perform a lot faster than the Radeon HD 4670 1GB in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 8000 (23%)

Texel Rate

The Radeon HD 4670 1GB should be quite a bit (more or less 68%) more effective at AF than the GeForce GT 440 3GB. (explain)

Radeon HD 4670 1GB		24000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 9744 (68%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is superior to the Radeon HD 4670 1GB, by a large margin. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 8256 (138%)

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 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 the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 are processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the 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 maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.