GeForce GT 440 3GB vs Radeon HD 5830

Intro

Compare that to the Radeon HD 5830, which features a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It features 1120(224x5) SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 5830		175 Watts
	Difference: 119 Watts (213%)

Memory Bandwidth

The Radeon HD 5830 should in theory be much faster than the GeForce GT 440 3GB overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 84800 (196%)

Texel Rate

The Radeon HD 5830 should be a lot (more or less 214%) better at AF than the GeForce GT 440 3GB. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 30544 (214%)

Pixel Rate

The GeForce GT 440 3GB will be a small bit (approximately 11%) more effective at anti-aliasing than the Radeon HD 5830, and should be capable of handling higher resolutions better. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 1456 (11%)

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 largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 applied in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one 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 sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.