GeForce GT 240 GDDR5 vs GeForce GT 450 (OEM)

Intro

Compare those specs to the GeForce GT 450 (OEM), which has clock speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 memory. It features 144 SPUs along with 24 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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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

Performance-wise, the GeForce GT 450 (OEM) should theoretically be a lot better 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) is a small bit (approximately 8%) better at texture 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

The GeForce GT 450 (OEM) should be a lot (more or less 331%) better at FSAA than the GeForce GT 240 GDDR5, and also should be capable of handling higher screen resolutions without losing too much performance. (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 largest amount of information (measured in 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 its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.