GeForce GTS 450 vs GeForce GTX 860M

Intro

Compare that to the GeForce GTX 860M, which comes with GPU core speed of 797 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also features 1152 SPUs, 96 TAUs, and 16 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 860M		4340 points
GeForce GTS 450		1453 points
	Difference: 2887 (199%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should be a bit faster than the GeForce GTS 450 overall. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 6272 (11%)

Texel Rate

The GeForce GTX 860M will be a lot (approximately 205%) better at anisotropic filtering than the GeForce GTS 450. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 51456 (205%)

Pixel Rate

The GeForce GTX 860M will be a bit (more or less 2%) better at AA than the GeForce GTS 450, and able to handle higher screen resolutions better. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 224 (2%)

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: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.