GeForce 8300 GS (OEM) vs Radeon HD 6750

Intro

Compare all that to the Radeon HD 6750, which has GPU core speed of 725 MHz, and 512 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 720 Stream Processors, 36 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon HD 6750		86 Watts
	Difference: 46 Watts (115%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6750 will be 900% quicker than the GeForce 8300 GS (OEM) overall, because of its greater data rate. (explain)

Radeon HD 6750		64000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 57600 (900%)

Texel Rate

The Radeon HD 6750 will be quite a bit (about 1350%) faster with regards to AF than the GeForce 8300 GS (OEM). (explain)

Radeon HD 6750		26100 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 24300 (1350%)

Pixel Rate

The Radeon HD 6750 should be much (about 1189%) faster with regards to full screen anti-aliasing than the GeForce 8300 GS (OEM), and capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6750		11600 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 10700 (1189%)

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 information (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.