GeForce GT 240 GDDR5 vs GeForce GT 450 (OEM)

Intro

Compare all of that to the GeForce GT 450 (OEM), which comes with clock speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 RAM. It features 144 SPUs as well as 24 Texture Address Units and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 36 Watts (51%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 450 (OEM) should be quite a bit faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 41600 (76%)

Texel Rate

The GeForce GT 450 (OEM) should be a bit (approximately 8%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 1360 (8%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GT 240 GDDR5, by far. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 14560 (331%)

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 within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the 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 the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.