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A10-5800k with RAM OC'ed to 2400 and OC'ed HD6670 in Crossfire, Anyone try this yet? Any Benchmarks?

post #1 of 72
Thread Starter 
I've seen plenty of A10-5800k reviews online, some done better than others.
They have ALL missed what is the most important test configuration for gamers considering buying the new A10-5800k.

test configuration:
A10-5800k overclocked to stable 4.4 to 4.5 Ghz stable
RAM overclocked to 2400Mhz 2T
IGP HD7660D overclocked to ~ 1080 MHz using AMD’s OverDrive utility (this required a 1.275 V northbridge setting). http://www.tomshardware.com/reviews/a10-5800k-trinity-efficiency,3315-2.html
HD 6670 GDDR5 Overclocked to ~950 Core Clock


My basic concern is when the 7660D is overclocked with 2133 to 2400 Mhz RAM, what is the "sweet spot" stable OC frequency of the CPU core, the 7660D, and the RAM ?
How does the Hybrid Crossfire work, which is the slower card, the RAM oveclocked 7660D or the overclocked HD 6670?

GDDR5 HD 6670 (and soon to be released HD 7670 which is exact same card)
Core Clock: 800 MHz
Shader Clock: 800 MHz
HD 7670 Shader Clock: 1000 Mhz

Better GDDR5 HD 6670 cards are reaching 950 Mhz Core.


So the final question is, will the HD7660D+GDDR5 HD 6670 in Crossfire equal an HD 6790 or HD 7770?

Has anyone attempted this yet?

If it works, it is basically the rumored specs of the PlayStation4, available today.

Some results at stock are showing up now:
http://www.3dmark.com/3dm11/4532897
http://www.3dmark.com/search?cpuName=&gpuName=AMD+Radeon+HD+6670&resultTypeId=232&linkedDisplayAdapters=1&searchKey=1339930555002&cpuModelId=0&chipsetId=688&advanced=false&searchCount=0
Edited by litoralis - 10/3/12 at 3:18pm
High Tide
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High Tide
(13 items)
 
Tsunami Redux
(14 items)
 
 
CPUMotherboardGraphicsRAM
i5-3570k ASUS P8Z77-V PRO Gigabyte GTX 670 OC 2 GB samsung 30nm 
Hard DriveCoolingCoolingCooling
Samsung 830 128 XSPC EX240 Dual 120mm Copper / Brass Radiator Danger Den black ice xtreme II 240mm radiator Danger Den 5 1/4" Single Bay Reservoir 
CoolingCoolingOSPower
Jingway 1200 pump. 12V 1.8A  Apogee GTZ Windows 7 Home Premium x64 OEM PC Power & Cooling 750 Watt Silencer MK II 
Case
Antec P280 
CPUMotherboardGraphicsRAM
Q9550 GIGABYTE GA-EP45-UD3P XFX Radeon HD 5770 HD-577A-ZNFC 4X 2GB OCZ Gold Edition 
Hard DriveHard DriveOS
Vertex 3 64GB 4X Seagate 500GB RAID 1,0 Win7 
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post #2 of 72
im subscribing to this thread. peeling my eyes out for the same thing actually. smile.gif
post #3 of 72
post #4 of 72
Yes they are right for a APU rig
post #5 of 72
TBH though, in terms of total cost, a 6670 GDDR5 combined with a A10-5800K is around a $200 combo. A year ago, I was able to spend a similar amount on a GTX 460 v2 and AMD 955 CPU and my combo (albeit each overclocked) has a 3DMark11 score of around 4400. Far beyond what you'd expected with this AMD hybrid solution.
Edited by Castaa - 10/4/12 at 2:08pm
post #6 of 72
Quote:
Originally Posted by Castaa View Post

TBH though, in terms of total cost, a 6670 GDDR5 combined with a A10-5800K is around a $200 combo. A year ago, I was able to spend a similar amount on a GTX 460 v2 and AMD 955 CPU and my combo (albeit each overclocked) has a 3DMark11 score of around 4400. Far beyond what you'd expected with this AMD hybrid solution.

fair point. what was the idle power usage for such a setup? most people will leave their HTPC or combo NAS setup on all the time so a low idle makes a huge difference to temps (within the room over time ) and what is the load power usage , temps and resultant noise from fans for cooling?

an APU is meant for an efficient media pc with some decent low-medium settings gaming performance at 1080p 30-40fps which can double up as a server if needs be or even just a xbmc rig

some real world setups on APU's such as the a6-3500 have been idling as low as 17W and 23-25w ! perfect for quiet HTPC or server. trinity is a watt or two more efficient at the low end too.

When i look at your 955 its 125watts and a gtx460 is 136w at socket on idle so we have rounding it up 160w idle and 235 + 270w on load = between 400 and 430W on peak load ! yet the top end llano is 229w not undervolted so all in all quiet a difference

the best use for an apu imo is in a small case where a discrete gpu wont fit. if you want discrete then buy a low`ish power cpu and a decent mid range gpu just make sure there the new ones with zero core and low idle gating technologies (but of course they cost more)
Edited by Pip Boy - 10/4/12 at 2:27pm
post #7 of 72
Quote:
Originally Posted by Castaa View Post

TBH though, in terms of total cost, a 6670 GDDR5 combined with a A10-5800K is around a $200 combo. A year ago, I was able to spend a similar amount on a GTX 460 v2 and AMD 955 CPU and my combo (albeit each overclocked) has a 3DMark11 score of around 4400. Far beyond what you'd expected with this AMD hybrid solution.
What about with DG enabled?
post #8 of 72
Quote:
Originally Posted by phill1978 View Post

fair point. what was the idle power usage for such a setup? most people will leave their HTPC or combo NAS setup on all the time so a low idle makes a huge difference to temps (within the room over time ) and what is the load power usage , temps and resultant noise from fans for cooling?
an APU is meant for an efficient media pc with some decent low-medium settings gaming performance at 1080p 30-40fps which can double up as a server if needs be or even just a xbmc rig
some real world setups on APU's such as the a6-3500 have been idling as low as 17W and 23-25w ! perfect for quiet HTPC or server. trinity is a watt or two more efficient at the low end too.
When i look at your 955 its 125watts and a gtx460 is 136w at socket on idle so we have rounding it up 160w idle and 235 + 270w on load = between 400 and 430W on peak load ! yet the top end llano is 229w not undervolted so all in all quiet a difference
the best use for an apu imo is in a small case where a discrete gpu wont fit. if you want discrete then buy a low`ish power cpu and a decent mid range gpu just make sure there the new ones with zero core and low idle gating technologies (but of course they cost more)

Well, HTPC is a different set of goals. I would expect a HTPC to be in sleep mode most of the time unless it contains a cable card/HD tuner for DVR purposes. Gaming on a HTPC? Maybe in that case the bump in performance would allow one to play ported console games with a wireless Xbox controller. Mouse/keyboard centric games are basically a no go in a living room setting.
Quote:
Originally Posted by kaiMCsquare View Post

What about with DG enabled?

I would be surprised to find this hybrid solution reaching the 3500 3Dmark11 level. Let's not forget these Trinity APUs are buoyed a bit by high physics scores and not very good GPU scores.

Here's the fastest 6670 + A10-5800K score I could find on 3Dmark's site: http://www.3dmark.com/3dm11/4489290 It's in the P2500 range.
Edited by Castaa - 10/4/12 at 4:18pm
post #9 of 72
http://www.inpai.com.cn/doc/hard/182755.htm

20-50% improvement from 1333mhz to 2400mhz wheee.gif
post #10 of 72
Quote:
Originally Posted by Castaa View Post

Well, HTPC is a different set of goals. I would expect a HTPC to be in sleep mode most of the time unless it contains a cable card/HD tuner for DVR purposes. Gaming on a HTPC? Maybe in that case the bump in performance would allow one to play ported console games with a wireless Xbox controller. Mouse/keyboard centric games are basically a no go in a living room setting.
I would be surprised to find this hybrid solution reaching the 3500 3Dmark11 level. Let's not forget these Trinity APUs are buoyed a bit by high physics scores and not very good GPU scores.
Here's the fastest 6670 + A10-5800K score I could find on 3Dmark's site: http://www.3dmark.com/3dm11/4489290 It's in the P2500 range.

a different set of goals? an apu is for a server / media pc with light gaming where it often is left on all the time
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Overclock.net › Forums › AMD › AMD CPUs › A10-5800k with RAM OC'ed to 2400 and OC'ed HD6670 in Crossfire, Anyone try this yet? Any Benchmarks?