GeForce 8300 GS (OEM) vs GeForce GTX 465

Intro

Compare those specs to the GeForce GTX 465, which has GPU core speed of 607 MHz, and 1024 MB of GDDR5 RAM running at 802 MHz through a 256-bit bus. It also is comprised of 352 SPUs, 44 TAUs, 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 465		200 Watts
	Difference: 160 Watts (400%)

Memory Bandwidth

In theory, the GeForce GTX 465 should be quite a bit faster than the GeForce 8300 GS (OEM) overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 96192 (1503%)

Texel Rate

The GeForce GTX 465 should be quite a bit (more or less 1384%) faster with regards to AF than the GeForce 8300 GS (OEM). (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 24908 (1384%)

Pixel Rate

The GeForce GTX 465 is much (more or less 2058%) more effective at AA than the GeForce 8300 GS (OEM), and also able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 18524 (2058%)

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 (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.