GeForce 8300 GS (OEM) vs GeForce GTX 460

Intro

Compare those specs to the GeForce GTX 460, which features core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs along with 56 Texture Address Units and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
GeForce GTX 460		150 Watts
	Difference: 110 Watts (275%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 should perform much faster than the GeForce 8300 GS (OEM) overall. (explain)

GeForce GTX 460		86400 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 80000 (1250%)

Texel Rate

The GeForce GTX 460 is much (approximately 2000%) more effective at anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 36000 (2000%)

Pixel Rate

The GeForce GTX 460 should be a lot (about 1700%) better at FSAA than the GeForce 8300 GS (OEM), and capable of handling higher resolutions better. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 15300 (1700%)

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 megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock 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 output rate also depends 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.