GeForce 8600 GT 256MB GDDR3 vs Radeon HD 6450 (OEM)

Intro

Compare all that to the Radeon HD 6450 (OEM), which features core clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 160 SPUs as well as 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 256MB GDDR3		47 Watts
	Difference: 16 Watts (52%)

Memory Bandwidth

The GeForce 8600 GT 256MB GDDR3 should in theory be much faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce 8600 GT 256MB GDDR3		22400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 9600 (75%)

Texel Rate

The GeForce 8600 GT 256MB GDDR3 should be a lot (about 73%) faster with regards to AF than the Radeon HD 6450 (OEM). (explain)

GeForce 8600 GT 256MB GDDR3		8640 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 3640 (73%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8600 GT 256MB GDDR3 is superior to the Radeon HD 6450 (OEM), by far. (explain)

GeForce 8600 GT 256MB 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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, 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 calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends 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 max fill rate.