GeForce 8300 GS (OEM) vs GeForce GTX 465

Intro

Compare those specifications to the GeForce GTX 465, which has core speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs along with 44 Texture Address Units and 32 Rasterization Operator Units.

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

The GeForce GTX 465 should in theory be a lot 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 will be a lot (more or less 1384%) better at texture filtering 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 will be a lot (approximately 2058%) more effective at anti-aliasing than the GeForce 8300 GS (OEM), and also will be able to handle higher resolutions better. (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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 can be applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.