GeForce 8600 GS (OEM) vs GeForce GTS 450

Intro

Compare all that to the GeForce GTS 450, which features GPU clock speed of 783 MHz, and 512 MB of GDDR5 memory set to run at 902 MHz through a 128-bit bus. It also features 192 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GTS 450 should in theory be a lot faster than the GeForce 8600 GS (OEM) in general. (explain)

GeForce GTS 450		57728 MB/sec
GeForce 8600 GS (OEM)		12800 MB/sec
	Difference: 44928 (351%)

Texel Rate

The GeForce GTS 450 is much (more or less 190%) faster with regards to anisotropic filtering than the GeForce 8600 GS (OEM). (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce 8600 GS (OEM)		8640 Mtexels/sec
	Difference: 16416 (190%)

Pixel Rate

The GeForce GTS 450 should be much (about 190%) faster with regards to FSAA than the GeForce 8600 GS (OEM), and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce 8600 GS (OEM)		4320 Mpixels/sec
	Difference: 8208 (190%)

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 data (measured in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.