GeForce GT 450 (OEM) vs GeForce GTS 450

Intro

Compare that to the GeForce GTS 450, which makes use of a 40 nm design. nVidia has set the core speed at 783 MHz. The GDDR5 memory runs at a frequency of 902 MHz on this specific model. It features 192 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce GT 450 (OEM), in theory, should be much faster than the GeForce GTS 450 in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 38272 (66%)

Texel Rate

The GeForce GTS 450 is much (approximately 32%) better at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 6096 (32%)

Pixel Rate

The GeForce GT 450 (OEM) should be quite a bit (more or less 51%) faster with regards to full screen anti-aliasing than the GeForce GTS 450, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 6432 (51%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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