the opening post from HB referes to HD2500 and HD4000. From another thread I know that the HD4600 (i7 fourth generation) works fine, but noone ever posted something about HD4400, the i3 embedded GPU. I also know that the earlier i3 generation also had chips with the HD2000 GPU which is not usable here.
I found an article @ notebookcheck which says its the same gpu (20 execution units) with slower clock rates but still OpenCL 1.2 capable. So I mean it will work.
The article also says its faster than the HD4000 and the GPU also has acces to the cache, so an i3 'Haswell' might be a good choice.
HD Graphics Serie
HD Graphics 4600 20 @ 200 - 1350MHz
HD Graphics 5000 40 @ 200 - 1100MHz
HD Graphics 4400 20 @ 200 - 1100MHz
HD Graphics 4000 16 @ 350 - 1350MHz
HD Graphics 4200 20 @ 200 - 850MHz
HD Graphics 3000 12 @ 350-1350MHz
HD Graphics 2500 6 @ 650 - 1350MHz
HD Graphics (Ivy Bridge) 6 @ 350 - 1000MHz
HD Graphics 2000 6 @ 850 / 1100-1350MHz
HD Graphics (Sandy Bridge) 6 @ 350 - 1100MHz
HD Graphics (Bay Trail) 4 @ 311 - 896MHz
I think the main points to note in the post from HB is at least OpenCL 1.2 and "Ivy Bridge and later". I would be very surprised if Intel would discontinue the OpenCL support anytime soon.
HD2000 doesn't work because it's sandy Bridge, as well as HD3000. HD4400 is just the same for crunching as HD4400. And you can easily make up for the clock speed difference.. oh wait, the multiplier's are locked, aren't they?
Anyway, running 2 WUs concurrently on an HD4400 with not-too-slow main memory should yield ~10k RAC here. That's nice to have, but shouldn't influence any buying decisions.
I am running an HD4000 on my laptop. With two WUs running in parallel each takes on average about 27 minutes to complete. Hence, theoretically the HD4000 would produce about 6600 to 6700 credits per day. According to gpu-z GPU load is at 96% on average.
I guess the figures for an HD4400 are somewhat similar. Would be nice though if you could report some numbers.
And you can easily make up for the clock speed difference.. oh wait, the multiplier's are locked, aren't they?
Hi MrS,
I can remember that you posted a long time ago that you did manipulate at least the core voltage to reduce power consumption.
Sorry, did not find the post, too long ago.
Could you PLS (re)-post some hints (or a link to) what's possible and how to do this, is a special MB necessary or is any (MSI, Gigabyte) MB with UEFI Bios good for that?
Intel HD4400 GPU
)
Read Bikeman's opening post in the thread "Support for (integrated) Intel GPUs (Ivy Bridge and later)" in "Technical News".
As to performance please do report if and when you get it running! =)
THX, Holmis, the opening
)
THX, Holmis,
the opening post from HB referes to HD2500 and HD4000. From another thread I know that the HD4600 (i7 fourth generation) works fine, but noone ever posted something about HD4400, the i3 embedded GPU. I also know that the earlier i3 generation also had chips with the HD2000 GPU which is not usable here.
I found an article @ notebookcheck which says its the same gpu (20 execution units) with slower clock rates but still OpenCL 1.2 capable. So I mean it will work.
The article also says its faster than the HD4000 and the GPU also has acces to the cache, so an i3 'Haswell' might be a good choice.
HD Graphics Serie
HD Graphics 4600 20 @ 200 - 1350MHz
HD Graphics 5000 40 @ 200 - 1100MHz
HD Graphics 4400 20 @ 200 - 1100MHz
HD Graphics 4000 16 @ 350 - 1350MHz
HD Graphics 4200 20 @ 200 - 850MHz
HD Graphics 3000 12 @ 350-1350MHz
HD Graphics 2500 6 @ 650 - 1350MHz
HD Graphics (Ivy Bridge) 6 @ 350 - 1000MHz
HD Graphics 2000 6 @ 850 / 1100-1350MHz
HD Graphics (Sandy Bridge) 6 @ 350 - 1100MHz
HD Graphics (Bay Trail) 4 @ 311 - 896MHz
I think the main points to
)
I think the main points to note in the post from HB is at least OpenCL 1.2 and "Ivy Bridge and later". I would be very surprised if Intel would discontinue the OpenCL support anytime soon.
HD2000 doesn't work because
)
HD2000 doesn't work because it's sandy Bridge, as well as HD3000. HD4400 is just the same for crunching as HD4400. And you can easily make up for the clock speed difference.. oh wait, the multiplier's are locked, aren't they?
Anyway, running 2 WUs concurrently on an HD4400 with not-too-slow main memory should yield ~10k RAC here. That's nice to have, but shouldn't influence any buying decisions.
MrS
Scanning for our furry friends since Jan 2002
I am running an HD4000 on my
)
I am running an HD4000 on my laptop. With two WUs running in parallel each takes on average about 27 minutes to complete. Hence, theoretically the HD4000 would produce about 6600 to 6700 credits per day. According to gpu-z GPU load is at 96% on average.
I guess the figures for an HD4400 are somewhat similar. Would be nice though if you could report some numbers.
RE: And you can easily make
)
Hi MrS,
I can remember that you posted a long time ago that you did manipulate at least the core voltage to reduce power consumption.
Sorry, did not find the post, too long ago.
Could you PLS (re)-post some hints (or a link to) what's possible and how to do this, is a special MB necessary or is any (MSI, Gigabyte) MB with UEFI Bios good for that?
Cheers
Alexander
Hi Alex, a few initial
)
Hi Alex,
a few initial posts were in the technical news thread, while later and more technical results are in the official feedback tread.
However, I don't know of any software which can set the iGPU voltage. On my 2 Gigabyte boards I can set it in the BIOS / UEFI.
MrS
Scanning for our furry friends since Jan 2002