GeForce 8800 Ultra vs GeForce GT 450 (OEM)

Intro

Compare those specs to the GeForce GT 450 (OEM), which features a clock speed of 790 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 192-bit bus, and uses a 40 nm design. It is comprised of 144 SPUs, 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

The GeForce 8800 Ultra should theoretically be a small bit faster than the GeForce GT 450 (OEM) in general. (explain)

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

Texel Rate

The GeForce 8800 Ultra is a lot (about 107%) more effective at AF 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 running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce 8800 Ultra, by a large margin. (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 data (measured in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card 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 clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.