Comments on: GpuTest 0.4.0: Cross-Platform OpenGL Benchmark Released, OpenGL 4 Tessellation Test Enabled Under Mac OSX

By: enzo

enzo — Tue, 02 Jul 2013 05:43:57 +0000

On 10.9 DP2, with the new 13″ MacBook Air 2013, boosted version (HD 5000/core i7 1.7 GHz), I get 22 FPS at the TessMark x32 with fourfold antialiasing, fullscreen (1440×900). Running x64 halves that performance. Without antialiasing, the performance ramps up to 70 FPS. Without antialiasing, the x64 test runs at 32 FPS, which is reasonable.

Pixmark Piano is very slow (2 FPS) but does not crash.
FurMark gets 8 FPS.
GiMark 21 FPS.

Hope that helps!

By: JeGX

JeGX — Wed, 12 Jun 2013 07:23:08 +0000

@blacksheep: I just received the information that the crash in Piano test has been fixed by AMD. But I don’t know when new drivers will be available. Anyway, it’s a good news!

By: blacksheep

blacksheep — Tue, 11 Jun 2013 18:57:19 +0000

Sure I’ll do 🙂

Meanwhile in Mavericks DP1…

TessMark x8 1920×1200 fullscreen, AA off: 56428 pts. FPS 941

Volplosion, same res, AA off: 1453 24 fps

Piano still crashes.

By: JeGX

JeGX — Fri, 07 Jun 2013 09:14:56 +0000

@blacksheep: could you please please test GLSL Hacker 0.5.0 demos with your system? Post your feedbacks in GLSL Hacker 0.5.0 page or in this forum. Maybe we'll see some bugs I can fix...

By: blacksheep

blacksheep — Thu, 06 Jun 2013 17:51:52 +0000

10.8.4 with updated AMD drivers, no change 🙁
Piano still crashes on 7xxx cards, Volplosion runs but score is still 19 fps. My 7950 w.Boost runs currently @1175/1375 instead of stock 925/1250 and it does not have an impact on Volplosion score.

By: blacksheep

blacksheep — Wed, 22 May 2013 07:39:23 +0000

Piano crashes on 7870XT and 7950 as well. Exactly the same as 0.3.0. MP 4,1 10.8.3
Waiting for 10.8.4 and (hopefully) better driver from AMD.

By: JeGX

JeGX — Sat, 11 May 2013 09:02:41 +0000

@Jordz: thanks! Yes, around 1 FPS is software rendering.

By: Jordz

Jordz — Sat, 11 May 2013 02:32:30 +0000

Tried Tessmark on an iMac with a 6970m. It worked, and rendered correctly. Although very slowly (1fps with high cpu usage), so it seems like it’s dropping back to software rendering on that card at least.

By: JeGX

JeGX — Fri, 10 May 2013 16:28:57 +0000

@RandyR: thanks for the feedback. I must say that I forgot to test on Intel HD 4000 under Windows (I know that GpuTest works fine on the intel HD 4000 of the Macbook Pro). I will test it asap.

By: RandyR

RandyR — Fri, 10 May 2013 16:19:20 +0000

Hi,

This doesn’t seem to work on an Ivy Bridge HD4000 system (Win7) even though I’m using the latest Intel drivers. Evey test I’ve tried (starting from the GUI) fails. Don’t know if it’s something specific to me or a known failure/limitation.

Thanks.

By: JeGX

JeGX — Wed, 08 May 2013 15:33:47 +0000

@soconne: Apple (or maybe NVIDIA/Intel, I don’t know exactly who) added the support of tessellation shaders without exposing the GL_ARB_tessellation_shader extension. If you have an Intel HD 4000, you can test the tessellation demo, the HD 4000 is an OpenGL 4 capable GPU. But as I said in the overview of GpuTest 0.4.0, the rendering of the TessMark demo is not correct on HD 4000.

By: soconne

soconne — Wed, 08 May 2013 00:13:25 +0000

I understand, I’m just curious which specific extensions Apple exposed under OSX 10.8.3 that enabled tessellation shaders. I, like you, was under the impression only OpenGL ~3.3 was supported. I only have the Intel HD 4000 so I’m unable to see for myself. Thanks.

By: nuninho1980

nuninho1980 — Tue, 07 May 2013 17:42:30 +0000

@soconne: GeForce 400-series/Radeon HD 5000-series or newer is required for OpenGL 4.x.

By: soconne

soconne — Tue, 07 May 2013 15:53:41 +0000

Could you be more specific about which OpenGL 4.0+ extensions are exposed that were required for your benchmark?

By: Studus

Studus — Tue, 07 May 2013 14:57:19 +0000

thanks again for making this available for OSX. you folks are amazing!