News - Acer brings Kepler powered Timeline Ultra M3 to the party

[HEXUS]

First Ultrabook to feature dedicated GeForce GT640M graphics.

Read more.

[edvinasm]

Sounds tasty. Can't wait to see W usage. Seems like NVidia might slap ATI once again.

[CAT-THE-FIFTH]

PC Perspective already have done a review.

[Scribe]

PC Perspective already have done a review.

They haven't performed any kind of battery-life tests yet though.

[CAT-THE-FIFTH]

They haven't performed any kind of battery-life tests yet though.

That is true and the GPU ran at a very high temperature too. Hard to say if it is due to lack of cooling or that the actual GPU runs hot.

[CAT-THE-FIFTH]

Anandtech has a preview up too:

http://www.anandtech.com/show/5672/a...kepler-verge/4

[Lanky123]

Ok, I'm in a wildly speculative mood, so here goes.

*If* the limited set of benchmarks are correct and representative, the GT640M (384 'new' cores) at 625Mhz is a bit better than the GT555M (144 'old' cores) at 590Mhz with a similar CPU. We could guess from this that 144 of the old cores are roughly similar in performance to 384 new ones, the new ones being 2.67 times less potent in other words.

Extrapolating wildly, the tripling of cores from a GTX580 in the rumoured new desktop part would lead to a ~12.5% performance gain. Accounting for the rumoured clock speed bump from 772Mhz to ~1Ghz could lead to another ~30% performance gain, or about 40-50% overall. Maybe a bit less if it starts to hit memory bandwidth limitations which is rumoured to be similar to the GTX580. Sounds reasonable I think?

[Scribe]

Ok, I'm in a wildly speculative mood, so here goes.

*If* the limited set of benchmarks are correct and representative, the GT640M (384 'new' cores) at 625Mhz is a bit better than the GT555M (144 'old' cores) at 590Mhz with a similar CPU. We could guess from this that 144 of the old cores are roughly similar in performance to 384 new ones, the new ones being 2.67 times less potent in other words.

Extrapolating wildly, the tripling of cores from a GTX580 in the rumoured new desktop part would lead to a ~12.5% performance gain. Accounting for the rumoured clock speed bump from 772Mhz to ~1Ghz could lead to another ~30% performance gain, or about 40-50% overall. Maybe a bit less if it starts to hit memory bandwidth limitations which is rumoured to be similar to the GTX580. Sounds reasonable I think?

Sounds reasonable to me, would have been my guess.

[lkarunan]

Shame the GeForce GT640M is restricted by GDDR3 RAM on this unit.