GeForce GTX 550 Ti vs GeForce GTX 870M

Intro

Compare those specs to the GeForce GTX 870M, which comes with core speeds of 941 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 memory. It features 1344 SPUs along with 112 Texture Address Units 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

Theoretically speaking, the GeForce GTX 550 Ti is 3% quicker than the GeForce GTX 870M in general, because of 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 should be quite a bit (more or less 266%) more effective at AF 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

If running with a high screen resolution is important to you, then the GeForce GTX 870M is the winner, but it probably won't make a huge difference. (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 max amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.