GeForce GT 450 (OEM) vs GeForce GTS 150

Intro

Compare those specifications to the GeForce GTS 150, which comes with a GPU core clock speed of 740 MHz, and 1024 MB of GDDR3 memory running at 500 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTS 150		141 Watts
	Difference: 35 Watts (33%)

Memory Bandwidth

In theory, the GeForce GT 450 (OEM) is 200% faster than the GeForce GTS 150 in general, because of its greater bandwidth. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 64000 (200%)

Texel Rate

The GeForce GTS 150 should be much (approximately 150%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 28400 (150%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GTS 150, and very much so. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 7120 (60%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant 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.