GeForce 8800 Ultra vs GeForce GT 450 (OEM)

Intro

Compare those specs to the GeForce GT 450 (OEM), which comes with clock speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 memory. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 65 Watts (61%)

Memory Bandwidth

Theoretically, the GeForce 8800 Ultra should perform a bit faster than the GeForce GT 450 (OEM) overall. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 7680 (8%)

Texel Rate

The GeForce 8800 Ultra is quite a bit (about 107%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 20208 (107%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce 8800 Ultra, by far. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 4272 (29%)

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 max amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high 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 texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.