GeForce GTX 560 Ti 448 vs GeForce GTX 870M

Intro

Compare that to the GeForce GTX 870M, which uses a 28 nm design. nVidia has set the core frequency at 941 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this card. It features 1344 SPUs as well as 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 560 Ti 448		4200 points
	Difference: 570 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 100 Watts (91%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti 448 should be much faster than the GeForce GTX 870M in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 48000 (50%)

Texel Rate

The GeForce GTX 870M is a lot (approximately 157%) more effective at texture filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 64400 (157%)

Pixel Rate

The GeForce GTX 560 Ti 448 will be a lot (about 30%) faster with regards to FSAA than the GeForce GTX 870M, and also able to handle higher resolutions more effectively. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 6696 (30%)

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 data (measured in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.