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

Intro

Compare those specs to the GeForce GTS 250 512MB, which uses a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 memory is set to run at a speed of 1100 MHz on this particular card. It features 128 SPUs as well as 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 speaking, 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 is a lot (approximately 149%) more effective at anisotropic 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

The GeForce GT 450 (OEM) is much (more or less 61%) faster with regards to full screen anti-aliasing than the GeForce GTS 250 512MB, and also will be able to handle higher screen resolutions more effectively. (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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.