GeForce 8300 GS (OEM) vs Radeon HD 6450 (OEM)

Intro

Compare all that to the Radeon HD 6450 (OEM), which features a core clock speed of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also uses a 64-bit bus, and uses a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce 8300 GS (OEM)		40 Watts
	Difference: 9 Watts (29%)

Memory Bandwidth

Performance-wise, the Radeon HD 6450 (OEM) should theoretically be much superior to the GeForce 8300 GS (OEM) in general. (explain)

Radeon HD 6450 (OEM)		12800 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 6400 (100%)

Texel Rate

The Radeon HD 6450 (OEM) will be a lot (more or less 178%) better at AF than the GeForce 8300 GS (OEM). (explain)

Radeon HD 6450 (OEM)		5000 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 3200 (178%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6450 (OEM) is superior to the GeForce 8300 GS (OEM), by a large margin. (explain)

Radeon HD 6450 (OEM)		2500 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 1600 (178%)

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 maximum amount of data (in units of MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it 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 anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.