GeForce 8800 GTX vs GeForce GT 440 1.5GB

Intro

Compare that to the GeForce GT 440 1.5GB, which features a core clock speed of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 192-bit memory bus, and uses a 40 nm design. It is comprised of 144 SPUs, 24 TAUs, and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce 8800 GTX		155 Watts
	Difference: 99 Watts (177%)

Memory Bandwidth

In theory, the GeForce 8800 GTX will be 100% quicker than the GeForce GT 440 1.5GB overall, because of its higher data rate. (explain)

GeForce 8800 GTX		86400 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 43200 (100%)

Texel Rate

The GeForce 8800 GTX will be quite a bit (approximately 158%) faster with regards to anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 22544 (158%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is a better choice, though only just barely. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 456 (3%)

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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If it uses 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.