GeForce GT 450 (OEM) vs GeForce GTX 275

Intro

Compare all of that to the GeForce GTX 275, which comes with clock speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 RAM. It features 240 SPUs along with 80 Texture Address Units and 28 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 275		219 Watts
	Difference: 113 Watts (107%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 275 should theoretically be a lot superior to the GeForce GT 450 (OEM) in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 31008 (32%)

Texel Rate

The GeForce GTX 275 will be much (about 167%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 31680 (167%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 450 (OEM) is a better choice, though not by far. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 1236 (7%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 can be processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at 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 that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of 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.