Conclusions

When a company builds a product that evolves and adapts every generation, unless they are under strong competition on all fronts, the best and brightest will not be released on day one. The company can afford to be more casual in how it approaches the product stack. This allows for updates to be produced during downtime that are just a slightly more aggressive policy revision. In the land of processors, this means more stringent bins or tighter pricing methods. The Haswell Refresh is essentially this – Intel has a long time between major updates (ticks or tocks) and can launch a number of processors in the interim which are more competitive for price and/or performance until the next major update appears.

As expected, the Core i7-4790 CPU that we had beats the i7-4770K in each of the CPU benchmarks by a consistent margin due to the CPU frequency increase. In a similar vein, the IGP of the i7-4790 trails that of the i7-4770K due to the 50 MHz deficit on the side of the i7-4790. There are no surprises here, it has all gone by the book.

While our other CPU matchups were not as ideal as the i7, the i5 and i3 both show their respective positions in the table. The use of the i7-4765T as a low frequency, quad core CPU with HyperThreading also puts in an element of analysis, whereby removing the HyperThreading for the i5-4690 actually puts it ahead on several of the single threaded / high-register requirement benchmarks.

In discrete GPU testing, the CPUs all perform similarly in single GPU conditions. This showcases that high-end CPUs, even for modern games are not needed when it comes to discrete gaming capabilities. This seems especially true for Tomb Raider which comes across as completely CPU agnostic, choosing to offload as much of the work onto the GPU as possible.

In dual GPU conditions, we get more of a landscape of where the Haswell Refresh CPUs stand. The i3-4360, in the same PCIe arrangement as the i5 and i7 CPUs, fails to scale as well as the CPUs with more cores. This equates to about 10% in Sleeping Dogs/Battlefield 4 using the GTX 770s in SLI, or 30% in the same benchmarks using HD 7970s in CrossFire. For users enjoying the higher refresh rate monitors, such as 120 Hz or 144 Hz, this can make a significant difference. The inclusion of HyperThreading with the i7-4790 did not give any advantage in gaming compared to the i5-4690, except in the CPU benchmarks where each thread had minimal register requirements (PovRay, 3DPM).

On the IGP side all of our new CPUs were using the HD4600 solution making comparison straightforward. The i7 seems to have the clear advantage here, with up to 10% performance increase against the i3. The difference between the i7 and i5 however was minimal, but exaggerated in some of the synthetic tests such as 3DMark Cloud Gate which ends up more CPU bound.

For a lot of users interested in overclocking CPUs or who have already moved to Haswell, this refresh will seem almost pointless. It is a chance for Intel to combine the release of a new chipset with a series of CPUs so system integrators and retailers can start selling bundles. For the enthusiasts especially, the new overclocking-focused Devil’s Canyon and Pentium-K processors supposedly coming soon are being awaited with bated breath.

For new users looking to go Intel however, the Haswell Refresh is the new platform to get. It edges out the older CPUs either in terms of performance or price, but not in a massive excitement sort of way. Intel has played it safe, as you would expect when you have a performance advantage.

The last question to consider is if this is the right time to purchase: is there something new around the corner?  For the enthusiast, the next generation of enthusiast CPUs (Haswell-E and X99) are due out in the second half of this year, however one would expect the entry point for this platform is around the $500 mark (CPU + motherboard + DRAM). For more mainstream uses, Intel has teased Broadwell news in the form of an unlocked Iris Pro CPU, however that seems to be due more towards the end of 2014/2015 if the Broadwell NUC roadmap is anything to go by. That would mean anyone buying a Haswell Refresh platform today, with a new CPU, would have until the end of the year before it is no longer the latest technology in the more casual desktop market. However, Broadwell processors are assumed to be LGA1150, the same as Haswell, meaning an upgrade should be as simple as replacing the CPU.

dGPU Benchmarks: 2x ASUS HD7970
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  • rajod1 - Friday, May 30, 2014 - link

    Well said, yes I agree many gamers or OCing people have sort of a sickness. They are addicted to hardware. They can't help it, like a moth to a flame. They will deny it but its true.
  • klmccaughey - Sunday, May 11, 2014 - link

    Ian, I am still confused by your description of SATA express/M.2/PCIe based SATA. Any chance of an article or comment on this? I am lost as to what to buy as I don't know now what fits what. I thought SATA express was PCIe SATA? I don't want to buy the wrong board or SSD.
  • Galatian - Sunday, May 11, 2014 - link

    M.2 is simply just a different connector type of SATA Express designed for Notebooks and SFF builts. Intel only states M.2 support on the 97 chipset, but it looks like most motherboard manufactures are releasing boards with SATA Express connectors as well.
    When you shop for a new SSD (and there is really isn't anything on the consumer market right now) you need to look at what your motherboard has: does it have an M.2 connector, SATA Express or both? Then buy accordingly, while minding that M.2 SSDs come in different physical sizes and you need to check if the fit into the slot. Drives using the "normal" SATA Express connector will probably come in the standard 2,5" format.

    Also note that - as Ian stated - the current M.2 and SATA Express implementation is already pretty much outdated since all (except ASRock on the Extreme 6 series) motherboards only expose 2 PCIe 2.0 lanes, which limits the bandwidth to 10 Gbit/s. The Samsung XD941 M.2 for example is already bandwidth constrained on that setup.

    On that note you might also want to check how the SSD is talked to. For example the Samsung XD941 still uses the AHCI protocol. SATA Express is capable of NVMe and there is no consumer SSD out yet with support for that.
  • Laststop311 - Monday, May 12, 2014 - link

    It's going to be awhile before we reach the limit. The fastest sata express implementation is pcie 3.0 x4 giving almost 32gbit/sec bandwidth + NVMe needs implemented. Then it will be maxed until pci-e 4.0 is out and it's updated for that. And the cycle continues infinitely....
  • klmccaughey - Monday, May 12, 2014 - link

    Fuck it - that's far too complicated. I am just going to wait until broadwell when they can agree on a standard. This is like betamax all over again.
  • kwrzesien - Monday, May 12, 2014 - link

    +1, I think you've nailed it on the head. I don't every see myself buying or recommending a SATA Express drive - the connector is dog. M.2 has potential but can't they even come up with a size standard? I mean hello, something like t-shirts? S, M, L? The things could be any length an who knows what each board will support.
  • kwrzesien - Thursday, May 15, 2014 - link

    Further research down the rabbit hole: http://en.wikipedia.org/wiki/M.2

    After learning all about M.2 and seeing what is listed on NewEgg for the drives and motherboards I think we are in for a rough ride, nobody is listing all the the features that you need to decide whether two parts are compatible:

    1) There are different keys in the connectors in both the cards and slot (B, M primarily but A through M are options). Both B and M support SATA, while B is also used for PCIe x2 and M is used for PCIe x4.

    2. The cards are different lengths but these are standardized into 16, 26, 30, 38, 42, 60, 80 and 110 mm possibilities, with current Z97 desktop motherboards commonly supporting 42, 60 and 80. 80 seems to be the best option for fast and large SSDs, 42 will be mostly for tablets and ultrabooks.

    3. There are different width standards 12, 16, 22 and 30 mm but so far everything seems to be 22 mm.

    You would then call a 22x80 card a 2280.

    4. There are different thickness standards, either single-sided or double-sided of 1.20, 1.35 or 1.50 mm. The connector on the board must support the proper thickness and SS or DS. Codes are S1-3 and D1-5 for single and double-sided at different thicknesses.

    A 22x80 double-sided 1.35 thick card with an M key would be called 2280-D2-M.

    5. SSD cards can use the SATA interface or SATA Express/NVMe (direct PCIe connection, less overhead). Currently all cards (Intel 530, Micron 550) seem to be SATA. Performance should be similar to SATA 6Gbps 2.5" drives so this form factor is really about convenience at this point not performance.

    6. On the specs page at Newegg for the ASUS Maximus VII Gene Z97 (http://www.newegg.com/Product/Product.aspx?Item=N8... board you get this for M.2: 1 x M.2 Socket 3 with M Key. Looking at the physical board layout it supports 2260 and 2280 size cards and includes one fastening screw that can be moved to either position. I don't know how the "Socket 3" translates into single-side and double-side thickness codes.

    7. On the specs page for the Micron M550 512GB M.2 SSD (http://www.newegg.com/Product/Product.aspx?Item=N8... you get Form Factor: M.2 Type 2280 and Interface: SATA 6Gb/s.

    Now it is possible that the motherboard only supports SATA Express/NVMe devices on the M.2 slot while the Micron and other available SSD's are only SATA and may not work. Since the English version of the motherboard manual is not available yet it is hard to say.
  • Daniel Egger - Sunday, May 11, 2014 - link

    Are you sure the Core i5-4460S doesn't have Turbo? Because all others and the predecessor do. Unfortunately Intel ARK doesn't list that one yet.
  • bharatwd - Sunday, May 11, 2014 - link

    Guys, when do you think the 4690K will release...Im planning to upgrade but i can wait a quarter as compared to the purchase of the 4690
  • DanNeely - Sunday, May 11, 2014 - link

    The most popular date in the internet rumor mill is Jun 2....

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