GeForce 8600 GT 1GB GDDR3 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 frequency of 1000 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It is comprised of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3		47 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 59 Watts (126%)

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should be a lot faster than the GeForce 8600 GT 1GB GDDR3 in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce 8600 GT 1GB GDDR3		22400 MB/sec
	Difference: 73600 (329%)

Texel Rate

The GeForce GT 450 (OEM) is a lot (about 119%) more effective at AF than the GeForce 8600 GT 1GB GDDR3. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce 8600 GT 1GB GDDR3		8640 Mtexels/sec
	Difference: 10320 (119%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce 8600 GT 1GB GDDR3, and very much so. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce 8600 GT 1GB GDDR3		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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.