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Intel Hardware

Intel Core I7-5775C Desktop Broadwell With Iris Pro 6200 Graphics Tested 75

Posted by samzenpus from the running-the-numbers dept.
bigwophh writes: 14nm Broadwell processors weren't originally destined for the channel, but Intel ultimately changed course and launched a handful of 5th Generation Core processors based on the microarchitecture recently, the most powerful of which is the Core i7-5775C. Unlike all of the mobile Broadwell processors that came before it, the Core i7-5775C is a socketed, LGA processor for desktops, just like 4th Generation Core processors based on Haswell. In fact, it'll work in the very same 9-Series chipset motherboards currently available (after a BIOS update). The Core i7-5775C, however, features a 128MB eDRAM cache and integrated Iris Pro 6200 series graphics, which can boost graphics performance significantly. Testing shows that the Core i7-5775C's lower CPU core clocks limit its performance versus Haswell, but its Iris Pro graphics engine is clearly more powerful.
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Intel Core I7-5775C Desktop Broadwell With Iris Pro 6200 Graphics Tested More

Intel Core I7-5775C Desktop Broadwell With Iris Pro 6200 Graphics Tested

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  • I saw the uncapped version of the chip showing it's layout.

    Are there versions of this chip with less GPU and more cores?

  • CPU/GPU integration is for farmers, to paraphrase Seymour Cray.
    • Comment removed based on user account deletion
      • You're probably thinking of NVIDIAs Optimus technology in portable devices. In which case, no, the Intel graphics aren't enhancing anything. The output from the NVIDIA chip gets piped through the Intel chip, as the Intel chip is the only one attached to the display. It's a solution to requiring a reboot with muxed GPU switching solutions. There's also a mild performance reduction with the Optimus solution.

        • Re: (Score:1)

          by Khyber ( 864651 )

          " The output from the NVIDIA chip gets piped through the Intel chip, as the Intel chip is the only one attached to the display."

          "There's also a mild performance reduction with the Optimus solution."

          So, here I sit on a desktop system with both discrete GPU (GTX 260 Core 216) and an Intel IGP, triple-monitor setup.

          I absolutely fucking hate when the system renders on the GTX yet insists on displaying through the monitor attached to the Intel IGP. We're talking a no-shit measured 50% drop in framerate - FOR DOO

    • Yes farmers.

      And businesses

      And schools, governments, integrated devices, laptops, tablets, low cost devices, small size devices, and 95% of the general purpose PCs on the market.

      • This is a top-of-the-line I7. It's for high-end workstations, not for ANY of "schools, governments, integrated devices, laptops, tablets, low cost devices, small size devices, and 95% of the general purpose PCs on the market". The kind of machines it's meant for will, by definition, have separate video cards.

        • Horseshit. Video cards are special purpose items these days and there are many use cases for a system with a top of the line GPU but little to no graphics grunt. But even if you did want graphics grunt unless you're doing complex 3D drafting and need a Quattro or something similar this CPU is able to beat last generation dedicated GPUs and even scores an impressive 130fps in GTAV at 1080p. If you NEED something more than this you are most definitely in special purpose category (i.e. 3D design, or heavy gami

          • Re: (Score:1)

            by Khyber ( 864651 )

            "Horseshit. Video cards are special purpose items these days "

            I guess you haven't heard of GPGPU. Well, given your UID, not a surprise.

          • Re: (Score:1)

            by Khyber ( 864651 )

            " this CPU is able to beat last generation dedicated GPUs"

            To boot, no, bullshit, and I proved this in the AMD spreadsheet performance comments from yesterday/day before. This new i7 processor can't even match a 9800GTX+ in single-precision FLOPs.

            So, no, it isn't even beating GPUs from SEVEN GENERATIONS ago.

            • The GTX570 outperforms the 9800GTX in all specs and benchmarks by a long margin, and the i7-5775C sans dedicated graphics card scores within 15% of the GTX570 on all games tested.

              So go fuck your hat.

    • CPU/GPU integration is for farmers, to paraphrase Seymour Cray.

      CPU/GPU integration has much lower latency than discrete a GPU. The HSA based AMD chips pass data from the fast, single threaded, fast branching core to the massive array of relatively slow FPU units in a few nanoseconds.

      Which is why HSA benchmarks seem to work so well

      http://www.tomshardware.com/re... [tomshardware.com]
      http://wccftech.com/amd-kaveri... [wccftech.com]

      If you want fast comptuting, low latency comms is where it's at :)

  • Skylake is two weeks away (Score:1)

    by Anonymous Coward

    DO NOT buy a broadwell chip. Skylake desktop chips are expected to launch August 5th @ Gamescom.

    • It's hothardware, what do you expect. plenty of quality hardware sites out there to get decent reviews if your interested. As it is hothardware you can guarantee that they are at least a month behind the more reputable sites.

    • Re:Skylake is two weeks away (Score:5, Informative)

      by Blaskowicz ( 634489 ) on Sunday July 26, 2015 @08:13PM (#50187089)

      Skylake has same CPU performance, and slower GPU (no eDRAM). And version 1.0 motherboards.
      Your advice is sound, but mostly if you don't need/care about the GPU or if you want new features like hdmi 2.0 and h265 decoder

      • Or support for 64GB ram on the Skylake ; or wanting the newer GPU 5-10 years down the road. Yes, many reasons to get a Skylake. If you do want fastest CPU and fastest integrated GPU, Broadwell it is.

        • Re: (Score:1)

          by Khyber ( 864651 )

          "or wanting the newer GPU 5-10 years down the road"

          At the current pace of technology, it is very likely that 5-10 years down the road your system won't even support/have the new bus slot the newer GPUs will require. That's including the current-gen of processor we are now discussing. PCI express is going to go away with direct processor interconnects on an interposer. Soon we will be at the point I predicted in my teenage years, where we have a closely-linked multi-socket motherboard, and all we do is repla

          • Eh, I wrote it badly :) I wanted to mean that 5-10 years down the road, you're a bit better off having a Skylake GPU than a Broadwell GPU, for driver support/features.

            I believe PCIe still has some life left - PCIe 4.0.
            You're probably right in some way but this is the death of the PC as an open platform : you would only buy Intel stuff that only works with Intel stuff, AMD stuff that only works with AMD stuff (already that way with motherboard chipsets, but you still have additional controllers) or the third

      • How certain are you that there will be no eDRAM versions of socketed Skylake?

        • Re: (Score:1)

          by Anonymous Coward

          That will come in 2016 . . . possibly late Q2/early Q3 2016. We may not even see anything quite like that until Kabylake.

      • Skylake has same CPU performance, and slower GPU (no eDRAM). And version 1.0 motherboards. Your advice is sound, but mostly if you don't need/care about the GPU

        Why would you care about the GPU on a desktop? If you don't want to bother with a graphics card and want to use integrated graphics, use a regular Broadwell or Skylake i7. If you need a GPU, add a graphics card.

        Iris Pro sorta kinda makes sense on laptops - slightly better than integrated performance for slightly more power consumption, without

        • Re: (Score:2)

          by msobkow ( 48369 )

          Not everyone wants the noise of an add-on video card. Some of us don't game, and only need "good enough" graphics to drive the display manager requirements. Add on a dollar or two saved on the power bill per year, less money spent on the power supply, and the money saved for the no-longer-necessary add-on graphics card, and built-in CPU graphics sounds like a "win" to me.

          I might keep on using my fanless NVidia card on my next box, but I'm going to wait and see whether I can saturate my drive IOs while

          • Re: (Score:1)

            by Khyber ( 864651 )

            "Some of us don't game, and only need "good enough" graphics to drive the display manager requirements"

            Okay, here's your 256KB GPU RAM. Have fun!

            • Re: (Score:2)

              by msobkow ( 48369 )

              Even a megapixel display at 24 bits required 3MB per frame... and a megapixel display has been "low end" for a lot of years now!

              Seriously, though -- why does everyone sneer at the fact that not everyone is a gamer? Why are gamers so god damned fucking ARROGANT about their "my dick is bigger than yours" hardware?

    • Re: (Score:2)

      by floodo1 ( 246910 )
      lol except Broadwell drops into a lot of existing mobos (i.e. z97 and it's variants)

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