GeForce GT 450 (OEM) vs GeForce GTS 150

Intro

Compare those specs to the GeForce GTS 150, which uses a 55 nm design. nVidia has clocked the core frequency at 740 MHz. The GDDR3 RAM works at a frequency of 500 MHz on this specific card. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTS 150 is a lot (more or less 150%) better 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

The GeForce GT 450 (OEM) is much (about 60%) better at FSAA than the GeForce GTS 150, and will be capable of handling higher resolutions while still performing well. (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 (in units of megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. 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 bandwidth is, 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 can be processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock 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 amount 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.