GeForce 8300 GS (OEM) vs GeForce GTX 460 2GB

Intro

Compare that to the GeForce GTX 460 2GB, which uses a 40 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR5 memory is set to run at a speed of 900 MHz on this particular card. It features 336 SPUs along with 56 Texture Address Units and 32 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 2GB		160 Watts
	Difference: 120 Watts (300%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 2GB should be 1700% quicker than the GeForce 8300 GS (OEM) in general, because of its higher bandwidth. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 108800 (1700%)

Texel Rate

The GeForce GTX 460 2GB will be quite a bit (about 2000%) more effective at anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 36000 (2000%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 2GB is superior to the GeForce 8300 GS (OEM), by far. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 20700 (2300%)

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 megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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