What GPUs today are equal-ish to PS4/XB1 rendering capability?

Discussion in '3D Hardware, Software & Output Devices' started by moistkitty, Sep 5, 2013.

  1. moistkitty

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    My team is working on a UDK game, but also in the process of obtaining an indie license with Sony and Microsoft. We'd like to be able to cap our scene complexity with a rough estimate of the power that the next gen consoles have. Roughly speaking, what kind of CPU/GPU combo would get us to about that level of power? I realize that a lot of work will go into optimizing the console code and that will evolve over time, but I'm just looking for a general idea so that we don't over shoot our expectations while developing on the PC.

    I wanted to add that if there's a laptop out there that's equal in power, that would also be ideal.
     
  2. Flux

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    I heard a radeon hd7870(non-oc) is on par.

    alot of the newer nvidia cards perform better than Xbone or PS4. But they are VERY expensive.
     
  3. Dominik D

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    There are many threads about the stuff you're asking already and ppl drop various versions left and right. Do the search. Start for example here:
    http://forum.beyond3d.com/showthread.php?t=64206
    Or in Console Technology forum in general.
     
  4. homerdog

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    I do not believe even the PS4 GPU is quite on that level, and the XB1 is well below that for certain.
    Look to the 7850 for a closer comparison to the PS4.
     
  5. Grall

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    The tight coupling of CPU and GPU in 4bone should make effects possible that cannot easily be emulated on even a very high end system, if some of the talk about these systems can be believed...

    Of course, developing an indie title wouldn't have to exploit such programmability, and would likely do well with a regular PC/discrete add-in graphics board...
     
  6. pjbliverpool

    pjbliverpool B3D Scallywag
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    That depends how you define VERY. You can get a 670 for £175 or a 7870 for£150. Both faster than either console at under half the price.
     
  7. pjbliverpool

    pjbliverpool B3D Scallywag
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    There's no directly comparable PC GPU. Both consoles have far higher bandwidth than PC GPU's of comparable core power. The closest match would be a 7870 with similar bandwidth but a fair bit more core power.

    As for a comparable CPU, There's not really anything in the PC space that wouldn't run rings around the console CPU's. The best bet would be to take an 8 core bulldozer and underclock it to 1.6Ghz. Even then it'd be faster but that can account for some of the directX overhead.
     
  8. pjbliverpool

    pjbliverpool B3D Scallywag
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    Unless you just forget about doing the latency sensitive stuff on GPU altogether and run it on the CPU. Your average Haswell does have around 1/3 the total SIMD throughput of the XB1 GPU afterall. That should be more than enough to match whatever portion of its GPU XB1 allocates to latency sensitive GPGPU. In fact it falls right in line with the 14/4 split example we've been given for the PS4 graphics/GPGPU split.
     
  9. moistkitty

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    Well this title is running on a AAA engine, despite being indie. It's AAA in quality, if not in size/scope.

    Thanks for all the suggestions everyone.

    What about notebooks, are there any out there or mobile GPUs that would allow us to develop the game and have a reasonably good benchmark so that we're not over-developing the featureset?
     
  10. pjbliverpool

    pjbliverpool B3D Scallywag
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    The 7970M and 7850 are pretty even with the mobile GPU having a slight flops advantage. Thinking about it thats probably the closest match to both consoles. It has comparable bandwidth and only slightely more core power than the PS4
     
  11. moistkitty

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    Thanks, but are companies still selling notebooks with that GPU? I'm having a hard time finding it. Also, would the Gtx 680M be too fast to be on parity with the PS4? I've read that the 7970M is not operating at full efficiency due to some power/endurance issues? Could be outdated info though.
     
  12. Blazkowicz

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    The Radeon 7790 sounds similar to the consoles, or at least the Xbox, it has 14 CUs at 1GHz of so-colled GCN 1.1, which is maybe the very same as in consoles - at least the power use profile is highly similar. Xbox has what, 12 CU at 850 MHz?

    It has 96 GB/s bandwith, which between the Xbox's 68GB/s and PS4's 174GB/s. Of course Xbox has the ESRAM (32MB at 192 GB/s) so it can be considerably better.

    The 7970M has a 100W TDP according to notebookcheck.net, this is absolutely monstrous for a laptop and so you can bet you run into throttling issues easily (this is a problem in much weaker laptops too)
    It's conceivable to run it in a desktop with a PCI epxress card that takes an MXM module (assuming the 7970M is on that format), as done there for 8790M and 8770M http://www.hardware.fr/articles/885-1/preview-amd-radeon-8790m-8770m-face-15-gpu-mobiles.html
     
  13. jaybraueir

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    7790 price + computer hardware compare to console and console have some exclusive games that pc don't have is not comparable but only full hd supports PC games looks like amazing that's why pc gamers have to pay double for gaming IMO that's not worth it
     
  14. Davros

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    Well thats your opinion, and seeing as most people need a computer anyway then the cost certainly isnt double that of a console for many people the price is that of just adding a gfx card
     
  15. pjbliverpool

    pjbliverpool B3D Scallywag
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    Console exclusives is a pretty weak argument these days. The vast majority of AAA games are released on all platforms and the number of exclusives for each console that you'll be truly bothered about missing can probably be counted on a single hand for the average person over the entire life of a console. Balance that against the dozens upon dozens of awesome cross platform games available and add in the fact that even if you choose console gaming you're STILL going to miss out on exclusives from the other console vendors and the conclusion sums up to a big fat "who cares"?

    There's also a lot more to PC gaming than just "full HD". Guaranteed high resolution/excellent image quality at 60fps is just the start. There's modding, improved core graphics (significantly so in some cases) multi-screen gaming, widespread 3d support, keyboard / mouse control, the ability to customize your experience/hardware, cheaper games, free online and my personal favorite, the simply ability to swap between internet browsing (via a far superior interface to consoles or tablets), playing music, doing work and playing games (plus anything else you want to do with your PC).

    All that for an initially higher hardware outlay which is partially or even fully (depending on how many you buy) offset by the cheaper games.
     
  16. CaptainGinger

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    I'd wager there are as many AAA PC exclusives available as console exclusives anyway. How many consoles have DoTA 2, Starcraft 2 and the like? Is Star Citizen coming to console?
     
  17. Alexko

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    I don't think it is, and neither are games like the STALKER series, the X series, Crusader Kings, most adventure games (admittedly, these will usually run on basic laptops), the Total War series, and probably a bunch more I can't think of right now.
     
  18. Pixel

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    Most of these people aren't taking into account the extra burden PCs must take on that consoles do not have. You need a step higher PC gpu than 7850 to compensate for the api burden and other things that give the consoles a leg up. So yeah a 7870 might be needed on PC to obtain equivalent.
     
  19. pjbliverpool

    pjbliverpool B3D Scallywag
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    I'm guessing you haven't been watching the news lately ;-)
     
  20. Andrew Lauritzen

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    That's overhead is largely on the CPU. There's not really any significant overhead on PC when you get to the code that is actually running on the GPU... in fact it's quite trivial to get close to the theoretical maximum performance of GPUs. Thus it's not reasonable to say that you need a better GPU to make up for any PC overhead. If anything, you need a somewhat faster CPU, but that's where PCs still lead by a fair margin already.
     
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