GeForce 8600 GS (OEM) vs GeForce GT 450 (OEM)

Intro

Compare all that to the GeForce GT 450 (OEM), which comes with core speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 RAM. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GS (OEM)		47 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 59 Watts (126%)

Memory Bandwidth

As far as performance goes, the GeForce GT 450 (OEM) should in theory be quite a bit superior to the GeForce 8600 GS (OEM) in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce 8600 GS (OEM)		12800 MB/sec
	Difference: 83200 (650%)

Texel Rate

The GeForce GT 450 (OEM) should be a lot (approximately 119%) more effective at anisotropic filtering than the GeForce 8600 GS (OEM). (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce 8600 GS (OEM)		8640 Mtexels/sec
	Difference: 10320 (119%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GT 450 (OEM) is the winner, and very much so. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce 8600 GS (OEM)		4320 Mpixels/sec
	Difference: 14640 (339%)

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 maximum amount of data (in units of MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.