Marcan hints at Xbox 720 processor speed

Going backwards is apparently in vogue.

Posted By | On 03rd, Dec. 2012 Under News | Follow This Author @KartikMdgl

We earlier covered how a well-known hacker Marcan had found out the Wii U processor clock speed which was set at 1.24 GHz, now apparently he has hinted the Xbox 720 processor speed as well.

Xbox 720 in most circles on the Internet, is called Durango, which was the official name according to a now-fired Crytek employee. Marcan said that the Durango’s processor runs at 1.6 Ghz, which indirectly tells you that clock speed is nothing and it’s the architecture that matters.

1.6 GHz would be a downgrade over the current 3 GHz per core of the Xbox 360 processor Xenon.

If you want more evidence that MHz isn’t everything, a little birdie points out that Durango (Xbox 720) is specc’ed to have a 1.6GHz CPU.

Food for thought. (And don’t bother asking me who that little birdie is.)

I know it would be a bit hypocritical if I go “Omg, Microsoft made a better processor which runs at a lower clock speed”, since I did the complete opposite last week with the Wii U, but as they say, there are some things you just take for granted, like, Nintendo with terrible specs.

However, since Marcan isn’t revealing his “birdie”, there’s nothing we can do but speculate. So what do you think?

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  • Oplompolom

    A 1.6Ghz CPU connected directly to a GPU with no ‘middling’ interface bus-connect with 192Gb/sec bandwidth shared between them is a completely different set of conditions to a gaming PC with a PCI-E interface bus-connect of 16Gb/sec.

    A modern ultra-high-end gaming PC manages 16Gb/sec between the CPU and GPU.

    The Xbox360 manages 21.6Gb/sec and the PS3 manages 25.6Gb/sec (those are not accurate, but they’re close). It’s why a game console can do so much with just a 8-ROP-based GPU at 550Mhz.

    Both Microsoft and Sony know what gaming consoles need: memory bandwidth and massive bandwidth between the CPU and GPU [Memory]. All other consideration were rescinded; although it’s a known quantity that the top game developers have been pushing both Microsoft and Sony about the very limited memory amount that they had included for the 1st and 2nd Dev Kits.

    3rd Generation Dev Kits have been reported having 12Gb of DDR3-type memory – but that is main memory and not GPU-GDDR-type memory.

    The thought here is that some form of fast DDR3 256bit memory will be shared between then CPU and GPU, and not GDDR5 for example. 4-8Gb of 256bit GDDR5 is just too complicated to use in a low power, compact, game console. If you had 14nm fabrication tech going into it, it wouldn’t be such a problem; 28nm seems to be the indication.

    DDR3 256bit is capable of 192Gb/sec without pushing boundaries too far in terms of voltage and heat.

    The GPU memory in the Playstation Orbis/Omni has been subtley hinted at by Sony to be 192Gb/sec of ‘some kind of memory’. Sony have clearly stated several times that “bandwidth is the key”.

    Knowing what the GPU is going to be in these consoles doesn’t really matter. All that matters is the game developers have told Microsoft and Sony that they need an absolute minimum of 2 Teraflops of compute power generated by the CPU and GPU.
    And that is what is going to happen.
    There are strong indications from those in the tech forums that they’re trying to get this figure up to 2.5 Teraflops, but that 0.5 is more power than the Xbox360 and PS3 combined.

    The gap between 2 Teraflops and 2.5 Teraflops and the limitations of low-power per watt, are huge and difficult.
    2.25 Teraflops seems to be the halfway point they’re reaching for.

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