GeForce 8300 GS (OEM) vs GeForce GT 450 (OEM)

Intro

Compare all of that to the GeForce GT 450 (OEM), which comes with a core clock frequency of 790 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 192-bit memory bus, and uses a 40 nm design. It features 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 66 Watts (165%)

Memory Bandwidth

The GeForce GT 450 (OEM), in theory, should be much faster than the GeForce 8300 GS (OEM) overall. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 89600 (1400%)

Texel Rate

The GeForce GT 450 (OEM) will be quite a bit (about 953%) better at AF than the GeForce 8300 GS (OEM). (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 17160 (953%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is a better choice, and very much so. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 18060 (2007%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses 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 applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 amount 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.