Final Words

I’m a fan of Haswell, even on the desktop. The performance gains over Ivy Bridge depend on workload, but in general you’re looking at low single digits to just under 20%. We saw great behavior in many of our FP heavy benchmarks as well as our Visual Studio compile test. If you’re upgrading from Sandy Bridge you can expect to see an average improvement just under 20%, while coming from an even older platform like Nehalem will yield closer to a 40% increase in performance at the same clocks. As always, annual upgrades are tough to justify although Haswell may be able to accomplish that in mobile.

Even on the desktop, idle power reductions are apparent both at the CPU level and at the platform level.  Intel focused on reducing CPU power, and it seems like Intel's motherboard partners did the same as well. Under load Haswell can draw more power than Ivy Bridge but it typically makes up for it with better performance.

Overclockers may be disappointed at the fact that Haswell is really no more of an overclocker (on air) compared to Ivy Bridge. Given the more mobile focused nature of design, and an increased focus on eliminating wasted power, I don’t know that we’ll ever see a return to the heyday of overclocking.

If the fact that you can’t easily get tons of additional frequency headroom at marginal increase to CPU voltage is the only real downside to the platform, then I’d consider Haswell a success on the desktop. You get more performance and a better platform at roughly the same prices as Ivy Bridge a year ago. It’s not enough to convince folks who just bought a PC over the past year or two to upgrade again, but if you are upgrading from even a 3 year old machine the performance gains will be significant.

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  • AmdInside - Sunday, June 2, 2013 - link

    I am actually more interested in the new 8 series chipsets than Haswell. I have a Sandybridge work desktop and Ivybridge gaming desktop and would switch my Sandybridge motherboard if the chipset were backwards compatible with SB CPUs.
  • Klimax - Sunday, June 2, 2013 - link

    Just reminder: We are more or less out of free performance without new algorithms or massive complexity/power consumption. (There are limits to what we can do)

    And Intel engineers won't increase complexity of chips. (Otherwise they'd have their own version of GPU problems)

    Anyway, waiting for Haswell-E... (Could use AVX2, but don't wont to lose 6 cores of 3930k)
  • ashetosvlakas - Sunday, June 2, 2013 - link

    "As we’ve seen in the past, the K-series parts (and now the R-series as well) omit support for vPro, TXT, VT-d, and SIPP from the list."

    As this is the official Haswell review and since TSX are not included in the K-series parts, I believe this is a huge omission from the review, especially since transactional memory is a revolutionary technology with a lot of potential. I find the lack of mention misleading and it should be corrected as soon as possible.
  • KAlmquist - Sunday, June 2, 2013 - link

    Thanks for letting us know this. Checking the specifications on ark.intel.com, I find:

    i5-4430 no TSX
    i5-4570 has TSX
    i5-4670 has TSX
    i5-4670K no TSX
    i7-4770 has TSX
    i7-4770K no TSX

    So TSX is missing from half of the current Haswell models (ignoring the low power S and T chips). So far we only have quad core chips; I expect that TSX will be missing from most of the dual core chips. It doesn't seem that TSX is intended to be used by developers writing general purpose code.
  • Kougar - Sunday, June 2, 2013 - link

    Is 2016 the earliest we will see Haswell-E launch?

    Buying a 4770K means I'm wasting 33% of the die on a GPU I don't want, and because it's a "K" chip it will also lose VT-d capability. Six-core "K" chips retain VT-d support, but buying SB-E seems silly given Haswell offers much better IPC and single-threaded performance, and later even against IB-E it would feel like paying more for less.

    Intel has taken a perpetual 2-year break between updating its high end, so if IB-E launches Q4'13 then it seems Q4'15 would be the earliest Haswell-E will show up?
  • Charlesm1950 - Sunday, June 2, 2013 - link

    Haswell GT3e graphics come at what price? Certainly a lot more than Haswell GT2 or Richland A10 graphics. And Intel is right, Haswell GT3e graphics beats old, entry level discrete graphics cards. BUT, Haswell does not do DUAL GRAPHICS! Pair a Haswell with a dGPU and you get only the graphics horsepower of the dGPU. In short, you waste all that die area that Intel devoted to GT3e and eDRAM. On the other hand, pair a AMD Richland A10 with a dGPU and both GPUs work in tandem to give performance scores well beyond Haswell GT3e and for dare I say a lot less money. That's true even with the cheapest entry level Radeon GPU. So, Intel has created a monster graphics engine and put memory on the die - but to claim its free or the best solution is just being a fan boy for Intel.
  • monohouse - Sunday, June 2, 2013 - link

    this my friends, is a joke, the mighty Haswell K models will not support VT-x, LOL this is going to be the first nail in Intel's coffin in favor of AMD, and I bet AMD are going to take advantage of this (and they already take advantage of Intel's "K" marketing strategy - why buy an incredibly expensive Intel "K" model without VT-x support, when you can buy an AMD both unlocked and with VT-x support) (the joke is that a 5-year old Core 2 Duo has more to offer than the latest and greatest Intel parts [it supports VT-x]). I am running a 4300 mhz Wolfdale (Penryn) and an another 3000 mhz Conroe, none of what I see here (and in part due to the lack of VT-x support) from Haswell is of any significant enough value over my current hardware, I would have considered it if I had a Pentium 4, but even then I would rather go to the AMD side, since they present no obstacles.
    and I still have many functional PCI cards and I am not about to throw them away just because Intel decided not to support them (yet another nail in Intel's coffin) (in my opinion hardware has to comply with the user's wishes, not the other way around).
  • skrewler2 - Monday, June 3, 2013 - link

    Wait, what? The K series doesn't include VT-d support, I don't see anything saying they don't support VT-x.
  • BillyONeal - Monday, June 3, 2013 - link

    Your comment doesn't make sense. AMD chips obviously don't have VT-x support; they have a competing standard, AMD-V. The first generation of virtualization extensions didn't make much of a dent in perf. The larger gains came as a result of SLAT which both AMD and Intel added around the Nehalem timeframe.
  • monohouse - Sunday, June 23, 2013 - link

    but SLAT is not going to be available on K models because virtualization is disabled ?

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