Originally Posted by SalisburySteak
Just an observation, but I've noticed 90% of people in this thread have been saying 780m instead of 870.
Originally Posted by Lazer1337
I've noticed it too :/ am I missing something ?
Originally Posted by rcoolb2002
I believe people are expecting performance in the 780m range. Attempting to compare it to something that exists makes it easier.
Originally Posted by b.walker36
Only thing i can think of lol. But it should perform the same if not better than the 780M.
Here is some reading on GTX 870M
and GTX 780M
, they are both based on the same GK104 chip Nvidia have been using since 2012.
Originally Posted by Techreport
The GeForce GTX 880M and 870M are both based on the older Kepler arch...
On the performance front, Nvidia touts across-the-board double-digit improvements when comparing the newcomers to the GeForce 700M series. The GTX 880M and 870M are 15% and 30% faster than their predecessors, the company claims,
Originally Posted by Anandtech
GTX 870M follows a slightly different pattern, using the same GK104 core but with one SMX disabled, leaving us with 1344 cores. Along with the loss of one SMX, the GTX 870M cuts the memory interface down to 192-bits. (Interestingly, this is the same core count as the GTX 775M found in Apple’s iMac only with a 192-bit memory interface, but to my knowledge the GTX 775M never shipped in a notebook.) The previous generation 770M only had 960 cores running at 811MHz + Boost, so overall the 870M should provide a significant boost in performance relative to the previous generation – around 62% more shader processing power and 25% more memory bandwidth as well!
Basically 870M is 780M with 75% the memory bandwidth, 87.5% of the CUDA cores & 114% the clock speed(. It is natural to assume 870M performs similar to 780M(if not inferior,The 30% faster than predecssor claim relates to 770M, not 780M).Edited by sherlock - 3/17/14 at 3:36pm