GeForce GTX 550 Ti vs GeForce GTX 870M

Intro

Compare all of that to the GeForce GTX 870M, which has a clock speed of 941 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 192-bit bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 TAUs, and 24 ROPs.

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 870M		4770 points
GeForce GTX 550 Ti		1897 points
	Difference: 2873 (151%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 6 Watts (5%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti is 3% quicker than the GeForce GTX 870M in general, due to its greater bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 2496 (3%)

Texel Rate

The GeForce GTX 870M is much (about 266%) more effective at texture filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 76592 (266%)

Pixel Rate

The GeForce GTX 870M should be a little bit (about 5%) more effective at anti-aliasing than the GeForce GTX 550 Ti, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce GTX 550 Ti		21600 Mpixels/sec
	Difference: 984 (5%)

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 (counted in megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum 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 clock speed of the chip. The higher the texel rate, the better the graphics 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 most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.