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HIS Radeon HD 5850 1 GB

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Someone has information about the 5850 sapphire vapor-x?
 

Ghiltanas

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yeah great card. Great performance and excellent idle consumption ;), for me it's the best buy actually, also at high resolutions as 1920*1080. I'm only disappointed we can't see any test with dx11 game :(..

Here in italy it's hard to find in the shop actually, how is the situation in other countries?
 

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how come my his didnt come with the tool kit, I WANT MY TOOL KIT!!
 
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Mine appears slightly better than yours W1z it does 850/1250 at default, but it doesn't like extra voltage at all.
 

Entropy

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Thanks for the review W1zzard. Excellent spread of games and settings, as usual, and your power measurements at different levels (not just idle and furmark for instance) is particularly useful.

My plan for this card is probably a bit unusual - I aim to replace my HD4770 with the HD5850 and undervolt it, in order to bring its typical in use power draw down to HD4770 levels, and then (if necessary) modify fan profiles using your tools. Idle power draw is excellent for the HD5850 as is.

However, I wasn't successful trying to modify voltages using RBE on the HD4770, and so I wonder first what tools are available (I'm only aware of ASUS's voltage tweak), and second if these tools allow lowering voltage as well as increasing it.

If anyone could help me, I would be grateful, and I promise to report my results "from the other end" so to speak.
 

sideeffect

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Thanks for the review W1zzard. Excellent spread of games and settings, as usual, and your power measurements at different levels (not just idle and furmark for instance) is particularly useful.

My plan for this card is probably a bit unusual - I aim to replace my HD4770 with the HD5850 and undervolt it, in order to bring its typical in use power draw down to HD4770 levels, and then (if necessary) modify fan profiles using your tools. Idle power draw is excellent for the HD5850 as is.

However, I wasn't successful trying to modify voltages using RBE on the HD4770, and so I wonder first what tools are available (I'm only aware of ASUS's voltage tweak), and second if these tools allow lowering voltage as well as increasing it.

If anyone could help me, I would be grateful, and I promise to report my results "from the other end" so to speak.

RBE did allow for adjusting the voltages within defined limits on the 4850. The minimum was 0.892 volts maximum was 1.158. This did work for my card I guess they changed some regulators with the 4770 series or support was just not added to RBE.

The 5800 series has a much more configurable voltage regulator and support is apparantly being added to the new version of RBE now so undervolting won't be a problem i'm sure.

Your probably better off with a first generation ATI reference design like my 4850 was and all the current 5850's and 5870's are because these versions generally have better support from 3rd party software. Second generation cards often have changes made that can prevent voltage modding or lack support in software.

Edit - ATI tray tools also allows voltage changes for the 4800 series as well as creating profiles but support for the new series would depend on when the creator can gain access to a card. It is worth checking out his beta forum though he has just released a version with better support for the 4770 and you might want to test it on your current card. http://cid-a50350ea7a969f0c.skydrive.live.com/self.aspx/Public/attsetup.exe.
 
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mmm
 
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TRT, your avatar is making me wonder if the 5850 and the batmobile were separated at birth. :roll:
 

Entropy

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RBE did allow for adjusting the voltages within defined limits on the 4850. The minimum was 0.892 volts maximum was 1.158. This did work for my card I guess they changed some regulators with the 4770 series or support was just not added to RBE.

The 5800 series has a much more configurable voltage regulator and support is apparantly being added to the new version of RBE now so undervolting won't be a problem i'm sure.

Your probably better off with a first generation ATI reference design like my 4850 was and all the current 5850's and 5870's are because these versions generally have better support from 3rd party software. Second generation cards often have changes made that can prevent voltage modding or lack support in software.

Edit - ATI tray tools also allows voltage changes for the 4800 series as well as creating profiles but support for the new series would depend on when the creator can gain access to a card. It is worth checking out his beta forum though he has just released a version with better support for the 4770 and you might want to test it on your current card. http://cid-a50350ea7a969f0c.skydrive.live.com/self.aspx/Public/attsetup.exe.

Thanks alot!
W1zzard doesn't mention voltages in his reviews of the 5870 and 5850. But working through the numbers, I would assume that the reasons that the 5850 gets substantially lower power draw could be that they shut down 10% of their chip and downclocked it to 725 MHz. This would yield (10/9)*(850/725)=1.303 or 30% higher power draw for the 5870. W1zzards review show 144/108=1.33 or 122/92=1.326 in the two non-synthetic load scenarios.

Why do I care? Because this suggests that the GPU voltage could be untouched between the two, and if so there could be considerable space to undervolt the 5850 chip, and still maintain stability at stock clocks. And it doesn't take all that much to drop the power draw drastically, as power typically scales with voltage^2 with these kinds of commercial chips. If you could go from, say 1.1 to 0.9 V that would yield (1.1/0.9)^2=1.494. And incidentally, if you again refer to the review, HD5850/HD4770 is 108/69=1.56 and 92/62=1.484

First conclusion is that there exist people nerdy enough to actually use the data that W1z provides. :) Second conclusion is that it may well be possible to for a 5850 to get within spitting distance of a 4770 at load, and at default clocks. And if so, there it would enjoy twice the caculational power and bandwidth, and a far better cooler that exhausts the hot air outside the cabinet. And lower idle power.

Said and done. I already have a buyer for the 4770. Now I just have to order the 5850.
Wish me luck guys.
 
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A little offtopic, but I just got an email this morning saying I won a 5850 from the 5k a day giveaway (Sapphire). Apparently it is the last day of contest, so I am pretty darn excited right now (thus me posting here). This is the first thing I have actually won on the internet I think.... :D :D :D
 

W1zzard

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First conclusion is that there exist people nerdy enough to actually use the data that W1z provides. :)

i always knew that, otherwise i'd have wasted my time ;)
 
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It will be interesting to see 5850 @ 850/1200 vs stock 5870. In two weeks i will get mine, and if anyone is interested, I can make a scaling volts/mhz, mhz/performance chart.
Any news on soft vmods for mem?
 
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A 5850 @ 850/1200 will not beat a stock 5870. A 5850 @ 870/1400 on the other hand, will.

815/1350MHz and 878/1400MHz (benchmarked) overclock using AMD GPU Clock Tool. So not all cards overclock the same, sadly. No mention of increasing voltage.
http://www.firingsquad.com/hardware/ati_radeon_hd_5850_performance_preview/page19.asp

Oh, when I meant 5850 @ 850/1200 vs 5870, I wanted to see if 160 shaders make the difference.but good review anyway. 5850 @ 1000/1400 will be a monster, any performance numbers on that?
 
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Oh, when I meant 5850 @ 850/1200 vs 5870, I wanted to see if 160 shaders make the difference.but good review anyway. 5850 @ 1000/1400 will be a monster, any performance numbers on that?

No, sorry. What I'm really interested in is maximum overclock numbers without increasing voltage.
 
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Oh, 870/1400 seems pretty high on stock volts. As I had seen, memory at 1300+ cause perfomance droop. But, all you need is luck on the core.. some cards can't pass the 800+
I would like to see a hynix gddr5 version :)
 
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Oh, 870/1400 seems pretty high on stock volts.

Oh, no. I wasn't saying it was on stock volts, I don't know, the review didn't specify. I was just making a separate statement :p

But I don't think it's really needed to increase the memory beyond 1200MHz (the same as the 5870), unless they like to brag ;)
 
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Jaja, thanks to memory error correction, we can put this mems higher than 6ghz.. just for a gpuz screenshoot. But I would like to see the perfomance droop :laugh:
Also, memory bandwidth bottlenecks 5870, here is a chart:



Numbers from here: http://www.xtremesystems.org/forums/showthread.php?t=235181

PB. Another here
 
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that is sooo exagerated..
 
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