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AMD Radeon R9 270X On Linux

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  • AMD Radeon R9 270X On Linux

    Phoronix: AMD Radeon R9 270X

    Earlier this month AMD announced the R9 series graphics cards that included the $200 Radeon R9 270X offering based upon the "Curacao XT" graphics core. This Volcanic Islands graphics card in Microsoft Windows benchmarks has been faster than a Radeon HD 7870, but today we have the first Linux test results and compatibility information available. This article serves as our first Linux review of the AMD R9 270X -- or any Rx 200 series graphics card for that matter -- in the form of the Gigabyte Radeon R9 270X 2GB.

    http://www.phoronix.com/vr.php?view=19245

  • #2
    The open source driver already has support for these cards.

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    • #3
      Yeah, I don't think it makes a ton of sense to run open drivers in their current state on new cards like this, but it would be good to at least get a report of how well they work. I assume they are to the point where you can just expect them to work on the desktop and for quake 3 based games, and it's just slow and lacking new GL3/4 features that are the primary downsides. Right?

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      • #4
        Considering the graph of performance per watt, the AMD's OpenGL driver seems not too bad, actually.

        I'm wondering if one could do a similar graph for APUs.

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        • #5
          Originally posted by agd5f View Post
          The open source driver already has support for these cards.
          Yes, but still I'm considering downgrading my 7950
          ## VGA ##
          AMD: X1950XTX, HD3870, HD5870
          Intel: GMA45, HD3000 (Core i5 2500K)

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          • #6
            Originally posted by smitty3268 View Post
            Yeah, I don't think it makes a ton of sense to run open drivers in their current state on new cards like this, but it would be good to at least get a report of how well they work. I assume they are to the point where you can just expect them to work on the desktop and for quake 3 based games, and it's just slow and lacking new GL3/4 features that are the primary downsides. Right?
            The R9 270X is a pitcairn variant so it's the same so they have the same level of suppor as other SI asics.

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            • #7
              Originally posted by agd5f View Post
              The R9 270X is a pitcairn variant so it's the same so they have the same level of suppor as other SI asics.
              I read somewhere similar stuff. Only the top end R9 280x and R9 290x are the new stuff. The other ones are rebranded and reclocked HD7000s.

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              • #8
                Originally posted by BSDude View Post
                I read somewhere similar stuff. Only the top end R9 280x and R9 290x are the new stuff. The other ones are rebranded and reclocked HD7000s.
                Yeah, looks like Michael wasn't immune to the rebranding BS, got himself another 7xxx series gpu, unfortunately.

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                • #9
                  R9 280X (Tahiti XTL) is ist basically a modified 7970 Ghz Edition

                  The new ones (Hawaii based) will be the R9 290s

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                  • #10
                    opps wrong thread
                    Last edited by DarkFoss; 10-22-2013, 05:48 PM.
                    Those who would give up Essential Liberty to purchase a little Temporary Safety,deserve neither Liberty nor Safety.
                    Ben Franklin 1755

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                    • #11
                      Well for now, R9 270X performance/stability with the opensource driver is a mixed bag. With glamor enabled, 2D performance is bad, without color tiling enabled things are prone to breakage, but 3D performance is top notch. On the other hand, with EXA enabled, 2D performance is excellent, but 3D performance is crap. Even though there arent many commits since the last stable release of xf86-video-ati ddx driver (comparing to xf86-video-intel where Chris is spitting out code like crazy and all the work he invested in SNA acceleration developement) - I'm pretty satisfied with the maturity of the ati/radeon driver, even though this is a (re)brand(ed) new card, things pretty much work OTB.

                      With some time invested in testing, things could be even better.

                      https://bugs.freedesktop.org/show_bug.cgi?id=70732

                      First of not so many I hope...

                      /edit: Oh, and this was a replacement for a GTX460 that was fscked during RMA process (one of the fans were noisy), all things considering I did benefit from the service guys screwup.
                      Last edited by combuster; 10-22-2013, 06:44 PM.

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                      • #12
                        I have the 7870 version of this card.

                        Same shader count, cooling, and color scheme.
                        The only difference is the 270x has 200MHz more mem clock and 100MHz less core clock.

                        One thing I noticed is the vgpu is locked on mine, is it locked on your 270x ?
                        One of the launch promises for these new cards was being voltage unlocked.

                        Here is my monitoring/setting app if you want to check http://sterlingdesktops.com/pub/lsad...-0.1.1.tar.bz2
                        Last edited by Soul_keeper; 10-23-2013, 12:31 AM.

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                        • #13
                          I hope this Mantle shit either gets open sourced or together with Direct3d die a horrible, painful death

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                          • #14
                            Originally posted by Soul_keeper View Post
                            I have the 7870 version of this card.

                            One thing I noticed is the vgpu is locked on mine, is it locked on your 270x ?
                            One of the launch promises for these new cards was being voltage unlocked.

                            [/URL]
                            I'm at work right now, but AFAIR vgpu is locked on mine too, 1.2V even though gpu/mem freq scale well.

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                            • #15
                              It is something like this:

                              old name <-> new name
                              8570M (Sun) <-> R7 240 (Oland DDR3)
                              8670 <-> R7 250 (Oland XT GDDR5)
                              7750 <-> R7 250X (Cape Verde)
                              7770 <-> R7 260 (Cape Verde XT)
                              7790 <-> R7 260X (Bonair)*
                              7850 <-> R9 270 (Pitcrain/Curacao)
                              7870 <-> R9 270X (Pitcrain/Curacao XT)
                              7950 <-> R9 280 (Tahiti)
                              7970 <-> R9 280X (Tahiti XT)
                              new <-> R9 290 (Hawaii)*
                              new <-> R9 290X (Hawaii XT)*

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