GeForce 8600 GT 1GB GDDR3 vs Radeon HD 6450 (OEM)

Intro

Compare all of that to the Radeon HD 6450 (OEM), which comes with core clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 160 SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce 8600 GT 1GB GDDR3		47 Watts
	Difference: 16 Watts (52%)

Memory Bandwidth

The GeForce 8600 GT 1GB GDDR3 should theoretically perform quite a bit faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce 8600 GT 1GB GDDR3		22400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 9600 (75%)

Texel Rate

The GeForce 8600 GT 1GB GDDR3 will be much (approximately 73%) better at AF than the Radeon HD 6450 (OEM). (explain)

GeForce 8600 GT 1GB GDDR3		8640 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 3640 (73%)

Pixel Rate

The GeForce 8600 GT 1GB GDDR3 will be quite a bit (about 73%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM), and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce 8600 GT 1GB GDDR3		4320 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 1820 (73%)

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 max amount of information (measured in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock 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 processed per second.

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