Patriot PDC32G1866LLK PC3-15000 2GB DDR3 Kit

Test Setup, Settings & Overclocking

Test Setup

With DDR3 speeds ramping up on an almost weekly basis, It's extremely difficult to obtain two or more memory kits with similar specifications to perform any kind of worthwhile comparison. Therefore, the Patriot PC3-15000 kit will be placed up against the recently reviewed OCZ Platinum PC3-12800 kit with it's stock frequency, latencies and voltage changed to match the Patriot kit.

 
Patriot PDC32G1866LLK PC3-15000
OCZ Platinum PC3-12800
ProcessorIntel Core 2 Quad Q6600 "G0" 2.4GHz 2x4MB
Motherboard Asus P5K3 Deluxe
Graphics Card  Sapphire Ultimate X1950 Pro 256mb PCI-E
Hard Disk Hitachi Deskstar 80GB 7K80 SATA2 7200RPM 8mb
CPU Cooling Stock Intel Aluminium Cooler
Operating System Microsoft Windows Vista Ultimate (Latest Updates)
Graphics Drivers ATI Catalyst 7.4.44981
Motherboard Drivers Intel INF 8.300.1013

To guarantee a broad range of results, the following benchmark utilities will be used:

Synthetic Memory Subsystem
• Sisoft Sandra XII 2008c
• Lavalys Everest 4.0

File Compression & Encoding
• 7-Zip File Compression
• River Past ViMark

3D / Rendering Benchmarks
• Cinebench 10
• 3DMark05
• 3DMark06

3D Games
• Quake 4
• Bioshock
• F.E.A.R


Test Settings & Overclocking

It is an unfortunate fact that many memory kits tested here at Overclock3D fall at the first hurdle by not being able to run with 100% stability at their advertised stock settings. Therefore the first test for the Patriot PDC32G1866LLK kit was to test their ability to run at 933mhz with 8-8-8-24 timings on 1.9v.

CPU-Z CPU-Z
 
While the screenshots above appear to show the Patriot modules happily running at their stock speeds, we experienced no end of problems getting them to run stable at these settings. ..

On first installing the modules and manually setting the timings and frequencies on our P5K3 testbed, Windows constantly bluescreened during bootup. Remembering some of the settings used to stabilise the previously reviewed OCZ Platinum DDR3 kit, we  switched the modules into DIMM slots A2 and B2 on the board and set the "Relax Level" to 3 in the BIOS.

This time the modules successfully booted into Windows, but on attempting to run any memory intensive benchmarks, the system once again blue screened. Not deterred by this, we switched out the Asus P5K motherboard for an Asus Blitz followed by an Asus Maximus - neither of which could add any further level of stability to the modules.

Finally, we changed back to the P5K3 motherboard and loosened several memory subtimings along with running the modules at a lower-than-rated 1.85v. This added enough stability for us to complete all benchmark tests without any errors but was far from ideal for any kind of 24/7 usage.

Needless to say that Overclocking was totally out of the question, but in the interest of completeness here's how they faired against the OCZ Platinum kit:

Maximum Frequency
 
Despite the OCZ Platinum kit being rated at a much lower speed of PC3-12800, it still managed to leave the higher stock-cloked Patriot kit in it's dust, overclocking a full 96mhz (48mhz in FSB terms) more at 8-8-8-25 timings.
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Most Recent Comments

22-11-2007, 08:43:29

JN
"Looking for some extremely fast DDR3? We check out the Patriot Extreme Performance PC3-15000 kit to see if it fits the bill."

http://www.overclock3d.net/gfx/artic...123527350s.jpg

Patriot PDP32G1866LLK Review

22-11-2007, 09:19:32

Ham
Shame really. They could have been onto a real winner.

They given a response yet?

22-11-2007, 09:57:56

ionicle
thats really quite pathetic that they couldnt even do what it said on the tin (well, plastic thing )

22-11-2007, 10:20:48

FragTek
Hopefully Patriot will get back to you and swap out the sticks for another pair to test. Patriot doesn't seem like they'd BS their claimed speeds by as much as these differed.

22-11-2007, 10:25:38

Pyr0
board limitation, not ram

22-11-2007, 10:28:57

FragTek
Quote:
Originally Posted by name='Pyr0'
board limitation, not ram
Are you sure about that? They tried with three different motherboards.

22-11-2007, 10:33:06

JN
Quote:
Originally Posted by name='Pyr0'
board limitation, not ram
Afraid not. The OCZ kit runs up to almost DDR3-2000 on the same board. I literally swapped the kits over without changing any settings to eliminate that as a possible issue.

22-11-2007, 12:08:46

Pyr0
sorry, was meant to be a question, but i couldn't edit my post with a "?"

24-11-2007, 02:34:13

Rastalovich
Quote:
Originally Posted by name='Pyr0'
board limitation, not ram ? ()
Funny u posted that. I was thinking about the Q6600 vS mobo, and what results an AMD cpu and `whatever ddr3 board` would make of it. Memory results alone u understand.

Something is holding something back by the looks of things. Feedback would answer some questions.

24-11-2007, 12:21:46

Pyr0
couple more questions

What is the max (stable) FSB for that Q6600?

What performance level were the tests completed at in the end?

And how much voltage did you try on the NB?

I found I ran out of NB voltage rather quickly on the P5K3 when testing some Ballistix... been thinking about trying a voltmod ever since lol (or buying/trying X38 or X48)

Here's some Ballistix at 2000 just for ref. (unstable)
Reply
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