GeForce GT 450 (OEM) vs Geforce GTX 670

Intro

Compare those specifications to the Geforce GTX 670, which comes with a GPU core clock speed of 915 MHz, and 2048 MB of GDDR5 RAM set to run at 1500 MHz through a 256-bit bus. It also is made up of 1344 Stream Processors, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Geforce GTX 670		170 Watts
	Difference: 64 Watts (60%)

Memory Bandwidth

The Geforce GTX 670 should in theory perform much faster than the GeForce GT 450 (OEM) in general. (explain)

Geforce GTX 670		192000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 96000 (100%)

Texel Rate

The Geforce GTX 670 will be a lot (approximately 441%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 83520 (441%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 670 is a better choice, by far. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 10320 (54%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.