ZeDestructor
Well-Known Member
- Joined
- Dec 13, 2008
- Messages
- 2,321
- Car(s)
- 1994 Toyota Tercel
Yeah I know about BGA, I just forgot that for a moment there. My own CPU is PGA988. But I somehow had the openings in my laptop differently in mind. I can't just like that access the CPU unfornately. I may look into a teardown-video when at home, maybe its not that bad. Then there is the question of the CPU, indeed. Officially and according to Acer this line of laptops only supports the Arrandale i3 and i5 CPUs, but Intel will obviously tell you, the HM55 supports all 988 Core i, including the Arrandale and Clarksfield i7-ranges. Also people on the Internet report perfectly fine running i7s in it, haven't found someone claiming it doesn't. Some even *claim* that they got a 988B Sandybridge working in it, but I don't buy into that, not even Intel backs that up on the HM55. So yeah, I am tempted to put an i7 in there. The concern of the 1.6Ghz i7 being slower than the 2.4Ghz i3 in singlethread-applications is mostly eliminated by the i7s Turbo-feature, pushing at least the cores #1 and #2 to 2.8/2.4 Ghz (1.73 for turboquad). Plus the benefit of 4/8 cores/ht over 2/4 and 6MB (8MB with the 800QM or 900XM) cache over 3MB. The downside of the lack of IGP is not really a concern to me, having a HD5650 alive and kicking in my Acer. The i7 6xxM range is not really interesting due to just being dualcore too, the 800QM as well as the 900XM are just too expensive usually. So its down to either 720QM or 740QM. Looking at the used prices, the 720QM seems to be the one to get. They sell for around 50EUR on ebay frequently, the 740QM more around 75?+, so imo not really worth the extra 133Mhz across all ranges.
Todo when home: Check teardown-video, decide. After vacation, buy or don't buy..
Yeah.. every time a friend of mine whines about his laptop taking forever to compile shit with his i7-620M, I fire him some 720QM ebay links