GeForce GT 450 (OEM) vs GeForce GTS 250 512MB

Intro

Compare those specifications to the GeForce GTS 250 512MB, which has a core clock frequency of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also features a 256-bit memory bus, and uses a 65/55 nm design. It features 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 39 Watts (37%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 450 (OEM) is 36% faster than the GeForce GTS 250 512MB in general, due to its higher bandwidth. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 25600 (36%)

Texel Rate

The GeForce GTS 250 512MB is much (approximately 149%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 28272 (149%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is the winner, by a large margin. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTS 250 512MB		11808 Mpixels/sec
	Difference: 7152 (61%)

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 transferred over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.