GeForce GT 440 3GB vs GeForce GTX 285 1GB

Intro

Compare all of that to the GeForce GTX 285 1GB, which comes with GPU clock speed of 648 MHz, and 1024 MB of GDDR3 RAM set to run at 1242 MHz through a 512-bit bus. It also features 240 SPUs, 80 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 148 Watts (264%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 1GB should be 268% quicker than the GeForce GT 440 3GB in general, because of its higher bandwidth. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 115776 (268%)

Texel Rate

The GeForce GTX 285 1GB will be quite a bit (approximately 264%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 37584 (264%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 1GB is superior to the GeForce GT 440 3GB, by far. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce GT 440 3GB		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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour 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 is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.