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Intel Haswell's idle states reportedly won't play well with some power supplies
One of the staples of Intel's upcoming Haswell processor architecture is its support for lower-power idle states that can rival tablet chips in power consumption, even on the desktop. However, that may come with a big caveat for budget and custom-built PCs: certain power supplies might not cut it. VR-Zone claims that those idle states require as little as 0.05 amps of current, which could be too nuanced for older or cut-rate supplies that deliver power in bigger clumps. That might not be a problem for companies building complete PCs, but Corsair's Robert Pearce tells The Tech Report that it may lead to a lot of motherboard builders playing it safe by disabling those specific modes by default. Many of us, in turn, would either have to buy a fresh supply or toggle the power-saving options ourselves. We've reached out to Intel to verify the truth, but it may be wisest to make a cleaner break from the past with any near-term upgrades.
Intel's Haswell detailed: three different GPUs, single-chip solution for ultrabooks
The demo of the 22nm Haswell running on a tiny solar cell at IDF was impressive, but it didn't really give us any idea what shipping products might look like. Well, a few slides popped up over at Chiphell that give us a few more details about how the tock, to Ivy Bridge's tick, is shaping up. For one, were looking at three new on-die GPUs, dubbed GT1, GT2 and GT3 -- the latter of which may be a higher performance part than we're used to seeing out of Intel. We also know that Haswell will have three variants: desktop, laptop (both of which are two-chip solutions with a separate controller hub) and ultrabook, which packs both the CPU and the controller in a single package. If you're in the mood to dig a little deeper hit up the source links.
