GeForce GTS 450 1GB vs GeForce GTX 960M

Intro

Compare those specs to the GeForce GTX 960M, which features core speeds of 1096 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 41 Watts (63%)

Memory Bandwidth

In theory, the GeForce GTX 960M should be just a bit faster than the GeForce GTS 450 1GB in general. (explain)

GeForce GTX 960M		64000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 6272 (11%)

Texel Rate

The GeForce GTX 960M will be much (more or less 75%) faster with regards to texture filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 960M		43840 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 18784 (75%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 960M is superior to the GeForce GTS 450 1GB, and very much so. (explain)

GeForce GTX 960M		17536 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 5008 (40%)

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 megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.