GeForce GTX 570 vs GeForce GTX 870M

Intro

Compare those specs to the GeForce GTX 870M, which comes with a core clock speed of 941 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 192-bit memory bus, and makes use of a 28 nm design. It is made up of 1344 SPUs, 112 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

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 570		4387 points
	Difference: 383 (9%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 570		219 Watts
	Difference: 109 Watts (99%)

Memory Bandwidth

Performance-wise, the GeForce GTX 570 should in theory be much better than the GeForce GTX 870M overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 56000 (58%)

Texel Rate

The GeForce GTX 870M will be much (about 140%) faster with regards to AF than the GeForce GTX 570. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 61472 (140%)

Pixel Rate

The GeForce GTX 570 will be quite a bit (more or less 30%) faster with regards to AA than the GeForce GTX 870M, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 570		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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 number is worked out by multiplying the total amount of texture units of the card by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.