GeForce GT 450 (OEM) vs GeForce GTX 260

Intro

Compare those specs to the GeForce GTX 260, which has a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also uses a 448-bit bus, and uses a 65 nm design. It is made up of 192 SPUs, 64 Texture Address Units, and 28 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 260		182 Watts
	Difference: 76 Watts (72%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 should in theory be a bit superior to the GeForce GT 450 (OEM) in general. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 15888 (17%)

Texel Rate

The GeForce GTX 260 will be quite a bit (more or less 94%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 260		36864 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 17904 (94%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GTX 260, but it probably won't make a huge difference. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 2832 (18%)

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 (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.