GeForce GT 440 1.5GB vs GeForce GTX 285 1GB

Intro

Compare those specs to the GeForce GTX 285 1GB, which features a clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also uses a 512-bit bus, and uses a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 148 Watts (264%)

Memory Bandwidth

The GeForce GTX 285 1GB, in theory, should perform quite a bit faster than the GeForce GT 440 1.5GB overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 115776 (268%)

Texel Rate

The GeForce GTX 285 1GB should be a lot (more or less 264%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 37584 (264%)

Pixel Rate

The GeForce GTX 285 1GB is quite a bit (about 45%) better at anti-aliasing than the GeForce GT 440 1.5GB, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 6480 (45%)

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 data (measured in MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.