GeForce GT 440 3GB vs GeForce GTX 295

Intro

Compare those specifications to the GeForce GTX 295, which has a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also uses a 448-bit memory bus, and uses a 55 nm design. It features 240 SPUs, 80 TAUs, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 295		289 Watts
	Difference: 233 Watts (416%)

Memory Bandwidth

Performance-wise, the GeForce GTX 295 should theoretically be much superior to the GeForce GT 440 3GB overall. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 180576 (418%)

Texel Rate

The GeForce GTX 295 will be a lot (approximately 546%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 77904 (546%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 295 is superior to the GeForce GT 440 3GB, and very much so. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 18000 (126%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.