GeForce 8300 GS (OEM) vs GeForce 8500 GT

Intro

Compare all of that to the GeForce 8500 GT, which features a core clock speed of 450 MHz and a DDR2 memory speed of 400 MHz. It also features a 128-bit bus, and makes use of a 80 nm design. It is comprised of 16 SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
GeForce 8500 GT		45 Watts
	Difference: 5 Watts (13%)

Memory Bandwidth

Theoretically speaking, the GeForce 8500 GT should be 100% quicker than the GeForce 8300 GS (OEM) in general, because of its greater bandwidth. (explain)

GeForce 8500 GT		12800 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 6400 (100%)

Texel Rate

The GeForce 8500 GT should be much (approximately 100%) more effective at texture filtering than the GeForce 8300 GS (OEM). (explain)

GeForce 8500 GT		3600 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 1800 (100%)

Pixel Rate

The GeForce 8500 GT is quite a bit (approximately 100%) more effective at full screen anti-aliasing than the GeForce 8300 GS (OEM), and able to handle higher resolutions more effectively. (explain)

GeForce 8500 GT		1800 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 900 (100%)

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 largest amount of information (in units of MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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