GeForce GT 440 1.5GB vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which features GPU clock speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 5670		61 Watts
	Difference: 5 Watts (9%)

Memory Bandwidth

Performance-wise, the Radeon HD 5670 should in theory be quite a bit better than the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 5670		64000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 20800 (48%)

Texel Rate

The Radeon HD 5670 should be a little bit (about 9%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 5670		15500 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 1244 (9%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 1.5GB is the winner, by far. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 8056 (130%)

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 (measured in MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.