14 DAY TRIAL // According to the statements of an NVIDIA insider, published earlier this month, “...8GB MacBooks should be no problem...” The NVIDIA staffer also said that an “8GB system can be built using two such SODIMMs after the memory is qualified with GF 9400M.” RAM maker Ramjet wouldn't go as far as that, 9to5mac reports. The company can “only” offer a 6GB upgrade kit for your “unibody” MacBook.
Apparently, Ramjet successfully tested a maximum 6GB of RAM on Apple's new notebook line, revealing its 6GB upgrade solution comprised of one 2GB RAM SO-DIMM and another 4GB unit.
A post on Ramjet's website points out that “the MacBook Aluminum uses a new high speed form of memory called DDR3-1066. The system maximum is 6Gigs with the installation of one 2Gig and one 4Gig SO-DIMM,” according to the RAM maker. Ramjet also uses non-Stacked ICs for the 2GB and 4Gig module for the MacBook, the same post reveals. “The cheaper stacked IC variety of 2GB and 4GB SO-DIMM runs hotter and draws more power, which hurts performance and decreases battery life. Ramjet ONLY uses premium non-stacked chips,” the company assures potential buyers. So here's what the offer looks like:
4Gig DDR3-1066 SO-DIMM for MacBook / 2Gig DDR3-1066 SO-DIMM for MacBook
Specifications:
DDR3-1066, 1066MHz, PC3-8500, CAS Latency 7, Non-ECC, Unbuffered, 1.5V, 204pin SO-DIMMs
According to Ramjet, “this module is specifically designed and SPD configured for the MacBook Aluminum,” and is “compatible with the latest Apple Firmware.” On the downside, upgrading to this much RAM is costly - $599 for the 4GB module and $75 for the 2 gig SO-DIMM, bringing the total upgrade cost to $674.
On the Features section for the new “unibody” MacBook, Apple says its 13-incher has a 2.0GHz or 2.4GHz Intel Core 2 Duo processor (depending on your order), with 3MB on-chip shared L2 cache running 1:1 with processor speed, and 1066MHz frontside bus. As for the supported memory, Apple says the new MacBook ships with “2GB (two 1GB SO-DIMMs)” modules of 1066MHz DDR3 SDRAM, while the notebook itself boasts just two SO-DIMM slots. According to the company, the maximum amount of RAM supported is 4GB.