Intel LGA 2011 latest CPU - Core i7-3820 OC Guide Sharing

[windwithme]

[windwithme]

[windwithme]

[windwithme]

Re: Intel LGA 2011 latest CPU - Core i7-3820 OC Guide Sharing

For Intel X79 SATA3 transfer rate, I use Intel latest 520 SERIES 120GB.
First, you can see the 520 packing is same as 320, which uses Intel new generation Logo.


SSD shell is Intel often use design. The benefit is you can take off the black frame to be 7mm slim SSD.
The controller is SanForce SF-2281 and flash is Intel MLC 25nm NAND FLASH.
Official spec write is 550 and sequential read is 500 MB/s. Random 4KB write is 80000 IOPS.
5-year warranty is Intel 520 SERIES biggest strength. Users have more confidence to use this product.


ATTO DISK Benchmark over 256k can reach 547.8 Mb/s read and 506.4 MB/s write.
AS SSD Benchmark - 550


ATTO DISK Benchmark is fastest and reach this SSD official specs.
AS SSD Benchmark Seq Write is lower and CrystalDiskMark also has same issue.

CrystalDiskMark
Seq Read - 484.0 MB/s Write - 159.3 MB/s
<All 0xFF, 1Fill> Read - 503.2 MB/s Write - 489.1 MB/s
<All 0x00, 0Fill> Read - 505.5 MB/s Write - 492.3 MB/s


CrystalDiskMark default is random test. The upper right shows the write speed is lower than spec.
As SandForce controller structure, some algorithm may cause this issue.
Left side pic, CrystalDiskMark changes to sequential mode, the write speed is close to official specs.
HD Tune Pro 5.00 in File Benchmark, all benchmark reach 500 MB/s or higher.

Power Consumption
Enter to OS Desktop and enable C1E power saving technology - 90W


Enter to OS Desktop and disable C1E power saving technology - 137W


Running LinX to make CPU full speed - 275W


Comparing to i7-3930K, i7-3820 power consumption is similar under enable C1E and enter to OS desktop condition. If disabling C1E, the number is lower.
Running LinX to make CPU full speed, 4C8T i7-3820 is 70W lower than i7-3930K.
However, i7-3820 power consumption is higher than i7-2700K. It may causes by CPU structure design.

Temperature(Room Temp is 21˚C)
Enter to OS Desktop - 19~26


Running LinX to make CPU full speed - 54~63


Cooler is CORSAIR Hydro Series H100 liquid cooling system and install 12cm higher rpm fan.
As OC to 4.75G, i7-3820 temperature performance is very good.

3D Test
msi N560GTX-Ti Twin Frozr II
3DMark Vantage CPU SCORE => 79023

[windwithme]

Re: Intel LGA 2011 latest CPU - Core i7-3820 OC Guide Sharing

FINAL FANTASY XIV
1920 X 1080 => 4701


StreetFighter IV Benchmark
1920 X 1080 => 305.01 FPS


Sandy Bridge-E 3D performance is almost the best in current Desktop system.
Three 3D software above, it all gets almost highest scores with same VGA card.
I used to mention CPU execute thread performance will impact 3D performance. Cores don’t impact much.
That’s why you can see i7-3820 in 3D performance is almost same level as 3930K or 3960X.
If you more focus on 3D performance, 2~4Cores are enough for you. The key factor is CPU single core execute thread.

Same as room temperature, 21, i7-3820 OC 4.75GHz OC setup and use meter to test MOSFET temperature.
Enter to OS desktop and enable C1E is 44.1. Disable C1E is 44.2. CPU burning test is 70.0.
As my personal experience with X79 boards, X79-UD5 temperature is lower with 3 times repeat test.
Windwithme every X79 board reviews all have temperature numbers.

GIGABYTE X79-UD5
Pros
1. X79-UD5 packing is all white design makes look elegant.
2. UEFI BIOS technology with two BIOS interfaces.
3. Special BT4.0/Wi – Fi card. In the mobilization century, it’s very convenient.
4. DDR3 is 8 DIMM and 10 SATA to make high expandability.
6. Exclusive front panel with USB 3.0 and quick OC features.

Cons
1. CPU voltage vibrates big between standby and full speed.
2. DDR3 2400 compatibility need to improve.



Performance ★★★★★★★★☆☆ 82/100
Components ★★★★★★★★★☆ 86/100
Specification ★★★★★★★★★☆ 92/100
Appearance ★★★★★★★★☆☆ 83/100
C/P Value ★★★★★★★★★☆ 88/100

GIGABYTE X79-UD5 is middle end in X79 market, but the spec is higher.
BT 4.0/ Wi–Fi card, 8 DIMM DDR3 and 10 SATA ports are very useful for user applications.
However, the OC tuning needs to improve.
This is my 6th X79 OC review. From entry to high end X79 all take me long time to fine tune and share.
I hope it’s useful for users to choose right LGA 2011 platform.

As i7-3820 launched, besides 2600K or 2700K high end LGA 1155 platform, users have one more choice.
Because entry X79 with i7-3820 price is overlapping some high end LGA 1155.
If you would like to have more upgradability and higher hardware specs, LGA2011 seems the better choice.
However, it seems too early to make the conclusion. Intel Ivy Bridge is on the way now. It may pull one back.
In the future, Intel Core i7 4C8T platform will have X79 with i7-3820 and Z77 with i7-3770K.
How to choose will be all decided by your budget and demands.
Windwithme will share more i7-3770K performance for your reference. :)

This review is also in my blog WIND3C, Any comments are welcome.