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JNavas
WWAN
Posts: 688
Registered: ‎08-07-2010
Location: US
Views: 5,817
Message 1 of 20

Performance gain from dual memory modules (including graphics)

The X220 supports dual channel memory, which can increase performance substantially with two memory modules,

not only memory performance, but also graphics performance (because of shared memory architecture).

I ordered my X220 with one 4GB module, and just added a second 4GB module.

UPDATE: The module added is PC3-10600 (1333 MHz), to match the factory module.

Windows Experience Index ratings (Windows 7 64 bit).

 

Before:

 

After:

 

UPDATE2: BIOS 1.21 boosts performance on the 65W Adapter further:

 

 

UPDATE3: New Lenovo-supplied Intel display driver boosts graphic performance even more:

 

John ~ ThinkPad T460p
[ Win8.1Pro64 | i5-6440HQ | 16GB | 1TB SSD | WQHD | 802.11ac | BT | Cam | FR ]
Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 5,800
Message 2 of 20

Re: Performance gain from dual memory modules (including graphics)

Neat! How does it affect memory bandwidth benchmarks? (i.e. the one in EVEREST/AIDA64)

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Guru
Posts: 537
Registered: ‎03-20-2011
Location: CA
Views: 5,782
Message 3 of 20

Re: Performance gain from dual memory modules (including graphics)

Cool.

I upgraded mine to 8GB as well.
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| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 850Pro 1TB SSD | 16GB DDR4 | Intel 8260 AC |
obscurite
Fanfold Paper
Posts: 6
Registered: ‎08-17-2011
Location: Brooklyn, NY
Views: 5,779
Message 4 of 20

Re: Performance gain from dual memory modules (including graphics)

@JNavas: What's the model # of your RAM? More details on what you actually bought please.

 

I'm considering the Kingston HyperX 1866mhz 8GB kit. I've heard that the sandy bridge x220's are able to mostly make use of the faster clock speed, based on screen shots I've see posted. Did you get 1333, 1600, 1866? More details please.

 

EDIT: Oops, just realized you added 4GB to the stock ram. That means it's 1333mhz ram. I totally went off-topic. Smiley Wink

obscurite
Fanfold Paper
Posts: 6
Registered: ‎08-17-2011
Location: Brooklyn, NY
Views: 5,768
Message 5 of 20

Re: Performance gain from dual memory modules (including graphics)

PS. The Kingston HyperX best price is at Directron, but they're currently out of stock (as of 8/17) and the next best price shipped is Newegg: http://www.newegg.com/Product/Product.aspx?Item=N82E16820104259 $128 seems worth it for a decent performance bump for both memory and graphics. Anyone using this memory? How has it worked out? Any comparison to 1333Mhz ram (8GB)?
Guru
Posts: 537
Registered: ‎03-20-2011
Location: CA
Views: 5,748
Message 6 of 20

Re: Performance gain from dual memory modules (including graphics)

Will the X220 mainboard actually utilize the higher speed if you get faster than DDR1333 ram?

Or it will just run at DDR1333 and you've spent the money for nothing.
---------------------
| X220 i7-2620M | 12.5" HD IPS | Intel 180GB SSD | Crucial 480GB mSATA SSD | 8GB DDR3 | Intel 7260 AC |
| X260 i7-6600U | 12.5" FHD IPS | Samsung 850Pro 1TB SSD | 16GB DDR4 | Intel 8260 AC |
RichardW
802.11n
Posts: 267
Registered: ‎05-31-2011
Location: San Francisco
Views: 5,644
Message 7 of 20

Re: Performance gain from dual memory modules (including graphics)

The i7-2620M is only spec'd up to 1333 memory. Some other processors have higher spec (e.g. i7-2720QM up to 1600).

http://ark.intel.com/products/52231/Intel-Core-i7-2620M-Processor-(4M-Cache-2_70-GHz)

 

Some of the reviewers on Newegg used faster memory than spec'd for their processor without problem, but some report crashes. How fast the X220 motherboard will actually allow is another question.

obscurite
Fanfold Paper
Posts: 6
Registered: ‎08-17-2011
Location: Brooklyn, NY
Views: 5,629
Message 8 of 20

Re: Performance gain from dual memory modules (including graphics)

I've seen claims that the x220 will ramp up to 1700+mhz based on actual system numbers, but I can't seem to find the darn link now. Dual channel seems to help a lot more than the speed increase, but I'm not 100% sure on that. Would love to hear from someone who can confirm with proof that the x220 will see a speed increase with 1866mhz ram over 1333mhz ram (8GB in both cases).
Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 5,602
Message 9 of 20

Re: Performance gain from dual memory modules (including graphics)

I heard stuff about Sandy Bridge being compatible with 1833MHz, but also something about early standards.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
figarro
Punch Card
Posts: 12
Registered: ‎07-12-2011
Location: Canada
Views: 5,581
Message 10 of 20

Re: Performance gain from dual memory modules (including graphics)

John


I have the same config as you but my rating is 5.8. There's something wrong with your software (my guess)...

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X220 4286 CTO, i7, 8GB RAM, 320GB HDD+Intel mSATA 80 GB, IPS display, BT 3.0, Intel 6205 WiFi, Win7 HP

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