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

Intro

Compare all of that to the GeForce GTS 250 512MB, which features clock speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

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, the GeForce GT 450 (OEM) should perform much faster than the GeForce GTS 250 512MB overall. (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 will be quite a bit (more or less 149%) better at AF 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

The GeForce GT 450 (OEM) will be much (more or less 61%) faster with regards to FSAA than the GeForce GTS 250 512MB, and also should be capable of handling higher screen resolutions without losing too much performance. (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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher 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 most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core 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 also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.