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Spectre660
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Re: A1222 and CPU multiplier Posted on 16-Jul-2017 23:10:05
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Elite Member |
Joined: 5-Jun-2005 Posts: 3918
From: Unknown | | |
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| @dooz
Sam460ex
CPU Blowfish (lower is better) This Machine 1155 MHz 57.522
CPU CryptoHash (higher is better) This Machine 1155 MHz 19.424
CPU Fibonacci (lower is better) This Machine 1155 MHz 16.196
CPU N-Queens (lower is better) This Machine 1155 MHz 41.481
FPU FFT (lower is better) This Machine 1155 MHz 56.793
FPU Raytracing (lower is better) This Machine 1155 MHz 48.580 _________________ Sam460ex : Radeon Rx550 Single slot Video Card : SIL3112 SATA card |
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iggy
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Re: A1222 and CPU multiplier Posted on 16-Jul-2017 23:25:13
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Super Member |
Joined: 20-Oct-2010 Posts: 1175
From: Bear, Delaware USA | | |
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| @Spectre660
Thanks for confirming what I'd already been fairly sure of, that the Applied Micro cpus used on Acube's boards were weaker than Freescale's cpus. I've made more than a few denigrating comments about Tabor's cpu, but the fact is that as 32 bit PPC cpus go, its not that bad. It has a crappy fpu, but so what, that's not a major part of the performance equation.
The fpu issue is a stickler for the MorphOS community (which already has plenty of supported systems in this performance range, so the compromise isn't really attractive to us). But, as a low cost OS4 system, I can see why it might appeal to some of you.
This discussion about over clocking though...its kind of like trying 'to make a silk purse out of a sow's ear'. Even if you can get it to over clock, the improvement will be minimal considering the risks involved. Burn out that cpu and you've pretty much trashed the board.
And for what? A tiny performance gain that would still come nowhere near what an X5000 can manage. Really, it would be best not to go there. Its not worth the potential cost. Last edited by iggy on 16-Jul-2017 at 11:26 PM.
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tlosm
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Re: A1222 and CPU multiplier Posted on 17-Jul-2017 8:27:52
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @Spectre660
X5000/20 35,7 41,42 8,86 20,39 30,21 30,09
X1000
60,33 32,14 15,08 24,54 17,49 37,67
Quad G5 42,27 46,23 10,89 17,5 12,97 17,07
G5 2. 0 ghz (dual)
49,53 43,1 15,3 26,98 13,3 22,91
_________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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iggy
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Re: A1222 and CPU multiplier Posted on 17-Jul-2017 13:41:51
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Super Member |
Joined: 20-Oct-2010 Posts: 1175
From: Bear, Delaware USA | | |
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| @tlosm
I assume those are all under Linux. |
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dooz
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Re: A1222 and CPU multiplier Posted on 18-Jul-2017 16:59:28
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Joined: 17-Jul-2013 Posts: 48
From: Unknown | | |
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Last edited by dooz on 13-Jan-2018 at 05:39 PM. Last edited by dooz on 18-Jul-2017 at 05:15 PM. Last edited by dooz on 18-Jul-2017 at 05:00 PM.
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bennymee
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Re: A1222 and CPU multiplier Posted on 18-Jul-2017 17:59:47
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Cult Member |
Joined: 19-Aug-2003 Posts: 697
From: Netherlands | | |
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| @dooz
Quote:
The similar situation is with SAM460 users. They will not upgrade to A1222 for sure because performance gain is small. There is no multicore support for A1222. |
Well you will have warrenty again and there is more memory, 2x sata on the Tabor and a maybe a better soundchip :)
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tlosm
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Re: A1222 and CPU multiplier Posted on 18-Jul-2017 18:25:48
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @iggy
yes _________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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tlosm
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Re: A1222 and CPU multiplier Posted on 18-Jul-2017 18:28:14
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @dooz
i think the fpu is really slow compared the g5 because the kernel isnt really optimized. _________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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iggy
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Re: A1222 and CPU multiplier Posted on 18-Jul-2017 18:45:14
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Super Member |
Joined: 20-Oct-2010 Posts: 1175
From: Bear, Delaware USA | | |
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| @dooz
Yes, the PowerPC 970 has a very good fpu, it outperformed X86 cpus from that period, and it has AltiVec instructions that the X5000's P5020 lacks.
SO, in a nutshell, yeah, it got better fpu performance.
AND, the X5000's use of DDR3 offers it no memory throughput advantages over a DDR2 equipped G5 (IBM's memory controller are probably just more efficient than Freescale's).
Quote:
Is it worth buying X5000/40 over 20 without multicore support? |
If you plan on dual booting with Linux (and I do), then of course the extra cores are useful (and the P5040, as you point out, is the faster cpu). Plus SMP is on the roadmap for OS4 (if not MorphOS).
You ARE right that SAM460 owners gain little benefit from upgrading to an A1222 (a very modest boost in frequency and performance, AND a non-standard fpu).
But upgrading from a PowerMac G5 to an X5000? Well, currently the G5 is only supported by MorphOS, and then only the AGP models are supported. This severely limits graphic card selection. Currently the best video cards supported are the AMD R500 cards (the best being the X1950Pro which won't display open firmware prompts, you want those prompts...then its the R400 based Apple X800XT). New R600 and R700 drivers are being worked on, but there is no guarantee that the AGP variants of those cards will be supported. AND, even if they are, the best AGP cards available are the Radeon HD 3850, 4650, and 4670. Pretty dated compared to the HD7750 or R7 250 shipping with most X5000 system, eh?
So, YES, there are still good reasons to upgrade from a G5 to an X5000, even if you aren't interested in OS4.
Now if the PCIe G5 is ever supported, those reasons become a lot slimmer, BUT it still would be NEW hardware, rather than used hardware.
These question will get SO much more complicated should the T2080 based laptop get produced. The cpu in that is slower than either X5000 model. But it does have AltiVec, and its a quad core, dual thread cpu, so it supports eight concurrent thread. Under an SMP enabled OS, that would be twice as many threads as an X5000/40.
Of course, the number of situation where this many threads is needed...that's hard to analyse. But, as I already have an eight core AMD X64 cpu, and will soon upgrade to a Ryzen cpu capable of sixteen concurrent threads... Hey, the more the better.Last edited by iggy on 18-Jul-2017 at 06:49 PM. Last edited by iggy on 18-Jul-2017 at 06:47 PM. Last edited by iggy on 18-Jul-2017 at 06:46 PM. Last edited by iggy on 18-Jul-2017 at 06:45 PM.
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dooz
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Re: A1222 and CPU multiplier Posted on 19-Jul-2017 7:54:15
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Joined: 17-Jul-2013 Posts: 48
From: Unknown | | |
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| Last edited by dooz on 13-Jan-2018 at 05:40 PM.
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tlosm
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Re: A1222 and CPU multiplier Posted on 19-Jul-2017 11:17:41
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @dooz
the thrut is ... is more optimized the kernel of a1222 compared the x5000 in linux side. x5000 is more complicated because the two dma channels, all the expansion slots, the core net cache and areally different hardware compared the small and light a1222.
Last edited by tlosm on 19-Jul-2017 at 11:18 AM. Last edited by tlosm on 19-Jul-2017 at 11:18 AM.
_________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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pavlor
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Re: A1222 and CPU multiplier Posted on 19-Jul-2017 18:45:47
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Elite Member |
Joined: 10-Jul-2005 Posts: 9584
From: Unknown | | |
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| @dooz
Quote:
If A1222 can catch SAM460 on FPU performance that would be nice. |
Not possible. e500v2 FPU is weak, period. Even Freesscale in its marketing materials openly says it is weak... cca 600 MHz G3 performance with native applications is best you can get from it. |
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tlosm
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Re: A1222 and CPU multiplier Posted on 19-Jul-2017 19:53:22
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @pavlor
im really courious to see how will perform a timedemo demo2 on 640x480 a1222 of quake warpos . it is software rendering and on X5000 perform really good. 138 fps on x5000/020
G5 Quad quake gave me 119 fps at same resolution in software rendering
Last edited by tlosm on 19-Jul-2017 at 07:54 PM. Last edited by tlosm on 19-Jul-2017 at 07:53 PM.
_________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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dooz
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Re: A1222 and CPU multiplier Posted on 19-Jul-2017 22:57:02
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Joined: 17-Jul-2013 Posts: 48
From: Unknown | | |
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| Last edited by dooz on 13-Jan-2018 at 05:40 PM.
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TrevorDick
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 0:09:37
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Elite Member |
Joined: 30-Dec-2004 Posts: 2678
From: Wellington | | |
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| @dooz
I also tried to find a silent fan for my Tabor motherboard but there are none available in the correct size for the tiny CPU assembly.
I'm not sure fitting an oversized fan off-centred is a very elegant solution? (although I appreciate it may be quieter )
TrevorD
Last edited by TrevorDick on 20-Jul-2017 at 12:14 AM.
_________________ No, I don't need no reason, I'm just breezin' |
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tlosm
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 7:40:12
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @dooz
about fpu the only way to know how it perform is in linux with a blender test (if it was full spe optimized). there you can know how much time will need to render the scene and compare it with others ng, this because on blender you can set the multy core support for therad rendering.
Last edited by tlosm on 20-Jul-2017 at 07:46 AM.
_________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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dooz
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 9:35:53
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Member |
Joined: 17-Jul-2013 Posts: 48
From: Unknown | | |
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| Last edited by dooz on 13-Jan-2018 at 05:41 PM.
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AP
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 10:04:52
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Cult Member |
Joined: 31-Jul-2003 Posts: 617
From: Vienna/Austria | | |
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| @pavlor
Quote:
pavlor wrote: @dooz
Quote:
If A1222 can catch SAM460 on FPU performance that would be nice. |
Not possible. e500v2 FPU is weak, period. Even Freesscale in its marketing materials openly says it is weak... cca 600 MHz G3 performance with native applications is best you can get from it. |
I made an interview for Amiga Future with Daniel Muessener (Tower57) and at least Tower57 (which makes heavy use of FPU) is significant faster on Tabor (in comparison with SAM 460 and with optimized code for Tabor)._________________ AmigaOne X5000/40, 2.2 Ghz, 4 GB RAM, Radeon R9 280X, M-Audio Revolution 5.1, 240 GB SSD |
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tlosm
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 10:07:39
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Elite Member |
Joined: 28-Jul-2012 Posts: 2746
From: Amiga land | | |
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| @dooz
it is no simple. just need Adrian port it you can check if is present hardinfo and bench the machine single core there in integer and in fpu _________________ I love Amiga and new hope by AmigaNG A 500 + ; CDTV; CD32; PowerMac G5 Quad 8GB,SSD,SSHD,7800gtx,Radeon R5 230 2GB; MacBook Pro Retina I7 2.3ghz; #nomorea-eoninmyhome |
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KimmoK
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Re: A1222 and CPU multiplier Posted on 20-Jul-2017 10:16:58
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Elite Member |
Joined: 14-Mar-2003 Posts: 5211
From: Ylikiiminki, Finland | | |
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| @TrevorDick
Someone could try adapters... GoogleLink
Or 3D print a suitable adapter. _________________ - KimmoK // For freedom, for honor, for AMIGA // // Thing that I should find more time for: CC64 - 64bit Community Computer? |
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