No, 850-900 is the normal range for the 5870, so yours is actually very good at the upper reaches of that
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Uniengine 2.0
- Thread starter Broken Hope
- Start date
No, 850-900 is the normal range for the 5870, so yours is actually very good at the upper reaches of that
LoL
Yup, I got magic hynix chips =D
They might even go higher if the upper limit could be unlocked, but I dont want to burn them, 5800 Mhz is plenty, and no artifacts at all untill I increase the GPU to 1025 Mhz, and they dont even get too hot (I touched the ramsinks after long use and they are cooler to the touch than most other stuff is).
I would need water cooling to go higher on the GPU without any artifacts.
And they run a lot cooler than my 4870s used to at stock speeds
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How do you check for error detection? Theres no artifacts or instabilty.
Oh .... oooops
http://www.hardocp.com/article/2009/09/22/amds_ati_radeon_hd_5870_video_card_review/5
1350 Mhz is slower than 1300, but 1445 is a bit faster, thats the error detection it would seem.
So it is dangerous to run over 1300 Mhz?
Reading the following article, it would seem that the memory chips are fine, but the bus is the thing that isnt:
http://www.anandtech.com/video/showdoc.aspx?i=3643&p=12
Oh .... oooops
http://www.hardocp.com/article/2009/09/22/amds_ati_radeon_hd_5870_video_card_review/5
1350 Mhz is slower than 1300, but 1445 is a bit faster, thats the error detection it would seem.
So it is dangerous to run over 1300 Mhz?
Reading the following article, it would seem that the memory chips are fine, but the bus is the thing that isnt:
http://www.anandtech.com/video/showdoc.aspx?i=3643&p=12
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It could be that the re-transmission is only occuring a few times, at any clock speed, so by whacking the mem clock way up you could be compensating for this - hence 1350 being slower than 1300, but 1445 being faster again. Bear in mind these chips are rated for 1250MHz (I believe) so they're not straining so much.
But I'm not an expert, so I'll stop before I'm accused of waffling.
But I'm not an expert, so I'll stop before I'm accused of waffling.
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I tried 3 runs at 1300, 1375, and 1445 Mhz memory, the score increased each time:
It would seem that if there is any error correction going on, the increased speed is still improving performance.
The error checking only affects errors in the memory bus, if the chips themselves get any errors then you would still get crashes and instability, so I believe the ram is fine at those speeds.
It would seem that if there is any error correction going on, the increased speed is still improving performance.
The error checking only affects errors in the memory bus, if the chips themselves get any errors then you would still get crashes and instability, so I believe the ram is fine at those speeds.
outside of benchmarks, no. I have 1000/1300 and 1000/1445 profiles saved, I've just started clicking on the later more frequently.
The only game I'm playing that I need to run them OC'ed for is Oblivion. For anythng else I leave them at default boot speeds.
The only game I'm playing that I need to run them OC'ed for is Oblivion. For anythng else I leave them at default boot speeds.
I tried benching with the tessellation slider controls on different settings & it has a big effect especially on minimum framerate (with not much visual difference at all).....I wonder if Nvidia had this kind of option on their 1.1 version which helped them appear better in tessellation? would be a sly trick 
