GeForce 8300 GS (OEM) vs GeForce GTS 450 1GB

Intro

Compare that to the GeForce GTS 450 1GB, which comes with clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs as well as 32 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 66 Watts (165%)

Memory Bandwidth

Performance-wise, the GeForce GTS 450 1GB should in theory be a lot better than the GeForce 8300 GS (OEM) in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 51328 (802%)

Texel Rate

The GeForce GTS 450 1GB should be a lot (more or less 1292%) more effective at texture filtering than the GeForce 8300 GS (OEM). (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 23256 (1292%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTS 450 1GB is a better choice, by a large margin. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 11628 (1292%)

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 max amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.