GeForce GT 450 (OEM) vs GeForce GTX 860M

Intro

Compare those specifications to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 797 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 1152 SPUs along with 96 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 61 Watts (136%)

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should perform a lot faster than the GeForce GTX 860M in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The GeForce GTX 860M is a lot (approximately 304%) more effective at AF than the GeForce GT 450 (OEM). (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 57552 (304%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GTX 860M, by a large margin. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 6208 (49%)

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 (in units of MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per 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 - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.