GeForce 8800 GTS (G92) vs GeForce GT 450 (OEM)

Intro

Compare those specifications to the GeForce GT 450 (OEM), which features GPU clock speed of 790 MHz, and 1536 MB of GDDR5 RAM running at 1000 MHz through a 192-bit bus. It also features 144 Stream Processors, 24 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 29 Watts (27%)

Memory Bandwidth

The GeForce GT 450 (OEM), in theory, should perform quite a bit faster than the GeForce 8800 GTS (G92) overall. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 33920 (55%)

Texel Rate

The GeForce 8800 GTS (G92) should be quite a bit (more or less 119%) better at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 22640 (119%)

Pixel Rate

The GeForce GT 450 (OEM) will be much (approximately 82%) more effective at full screen anti-aliasing than the GeForce 8800 GTS (G92), and capable of handling higher screen resolutions better. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 8560 (82%)

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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video 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 amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.