1.35v ram upgrade, which one is better and faster?

[us18x]

16GB G.Skill Ripjaws DDR3 2133MHz SO-DIMM Low-voltage 1.35V laptop memory kit (2x 8GB) CL11 ($197.99)

16GB G.Skill Ripjaws DDR3 Laptop upgrade kit
Low-voltage DDR3 memory, 1.35V
Consists of 2x 8GB single modules, 204 pins
2133MHz PC3-17000 SO-DIMM
Timings of CL11 (11-11-11-31) at 1.35V

or

Corsair Vengeance Performance 16GB (2x8GB) DDR3L 2133MHz CL11 ($186.68)

Density: 16GB (2x8GB Module)
Speed: 2133MHz
Timing: 11-11-11-27
Type: DDR3L
Format: SODIMM
Pin Out: 204 Pin
Voltage: 1.35V

I am planning to put 4*8GB and take the full advantage of the G750JS capability.
Are there any other models out there beside of those???

Thanks

[hmscott]

us18x wrote:
16GB G.Skill Ripjaws DDR3 2133MHz SO-DIMM Low-voltage 1.35V laptop memory kit (2x 8GB) CL11 ($197.99)

16GB G.Skill Ripjaws DDR3 Laptop upgrade kit
Low-voltage DDR3 memory, 1.35V
Consists of 2x 8GB single modules, 204 pins
2133MHz PC3-17000 SO-DIMM
Timings of CL11 (11-11-11-31) at 1.35V

or

Corsair Vengeance Performance 16GB (2x8GB) DDR3L 2133MHz CL11 ($186.68)

Density: 16GB (2x8GB Module)
Speed: 2133MHz
Timing: 11-11-11-27
Type: DDR3L
Format: SODIMM
Pin Out: 204 Pin
Voltage: 1.35V

I am planning to put 4*8GB and take the full advantage of the G750JS capability.
Are there any other models out there beside of those???

Thanks

us18x, watch out for Corsair memory, they have been advertising their SPD 1.5v memory as "tested under 1.35v", but when plugged into the G750 the G750 runs it at the SPD of 1.5v, and the G750 BIOS doesn't let you override the SPD to run at 1.35v.

See the sticky thread for people bitten by Corsair SPD 1.5v memory advertised as "tested at 1.35v"

Upgraders: 1.35V memory is required!
http://rog.asus.com/forum/showthread.php?33744-Upgraders-1.35V-memory-is-required!&p=272284&viewfull...

Here are some posts from someone that installed 1.35v 2133mhz memory:

Well, it's official. The G750 Haswell boards apparently support 2133MHz (1066MHz) memory. With 1.35v modules nonetheless. Here's the cpu-z snippet.
http://rog.asus.com/forum/showthread.php?33744-Upgraders-1.35V-memory-is-required!&p=406555&viewfull...

G750 Haswell Boards Support 2133MHz SODIMM's
http://rog.asus.com/forum/showthread.php?47957-G750-Haswell-Boards-Support-2133MHz-SODIMM-s&p=406625...

There is also some awesome new memory that runs at 1.35v at high clock rates, like the links I posted above, and these:

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007609%2050011776%2050008476%20600006...

[us18x]

I am checking out the G.Skill and it seems the one that I will be getting. Have you tested one of those? I am willing to buy a 16gb kit (2*8) as a starter as I am running low on cash at the moment to avoid my laptop being damaged! lol later on will get the other 16GB kit.

Thank you for the great help by the way!

[us18x]

Look what I got in the mail yesterday 😛



My question is why the housing for the ram says 1.5V? My system is running now on maximum ram allowance 32GB and here is some 3DMark results of before and after.

Before

After


I am debating now if I should keep it or not and if you noticed the scores went higher little bit and it surely beaten all JX scores in all tests.

[hmscott]

us18x wrote:
Look what I got in the mail yesterday 😛
My question is why the housing for the ram says 1.5V? My system is running now on maximum ram allowance 32GB and here is some 3DMark results of before and after.
I am debating now if I should keep it or not and if you noticed the scores went higher little bit and it surely beaten all JX scores in all tests.

us18x, that is some pretty sweet memory 🙂

Nice bump on the scores, and that's before OCing using XTU + Asus Tweak Tool + MSI Afterburner. Can't wait to see the final stable results 🙂

But, to be fair, putting that memory in the JX would have resulted in a like bump in performance, and one of the 3dmark scores I got on my JX with stock memory still stands as higher than the JS 🙂

Ice Storm - 123674
http://www.3dmark.com/is/871697

The rest aren't far behind:

Cloud Gate - 16881 (4.4% lower)
http://www.3dmark.com/cg/776752

Fire Strike - 4108 (8% lower)
http://www.3dmark.com/fs/855082

3dmark11 - P6039
http://www.3dmark.com/3dm11/7147510

If you still have the JX it would be fun to max out both with that 2133mhz memory and see how they compare.

BTW, even though the JS numbers are higher, the difference likely isn't noticeable - if you were playing side by side with the same maximum tweeks you would think they were the same model.

So, again it comes down to living with Optimus, or not 🙂

It would be fun to see the battery run time with a video/BD-R playback or some equivalent light GPU use is between the JX and the JS. My JH gets 3 hours playback, and I hear the JZ gets 3.5hrs... a significant but not a big difference - I'd rather be Optimus free and carry a 2nd battery.

Keep us posted on the results!

[us18x]

Scott, I am returning this one in the hope that ASUS fix this big problem of embedding Optimus technology in their premium product. I am convinced that it's not worth the investment for just little bit improvement and lots of lack of performance same time...
I will be looking forward for next year G series and might invest on the high end model instead of mid-range one.

[us18x]

hmscott wrote:
us18x, that is some pretty sweet memory 🙂

Nice bump on the scores, and that's before OCing using XTU + Asus Tweak Tool + MSI Afterburner. Can't wait to see the final stable results 🙂

But, to be fair, putting that memory in the JX would have resulted in a like bump in performance, and one of the 3dmark scores I got on my JX with stock memory still stands as higher than the JS 🙂

Ice Storm - 123674
http://www.3dmark.com/is/871697

The rest aren't far behind:

Cloud Gate - 16881 (4.4% lower)
http://www.3dmark.com/cg/776752

Fire Strike - 4108 (8% lower)
http://www.3dmark.com/fs/855082

3dmark11 - P6039
http://www.3dmark.com/3dm11/7147510

If you still have the JX it would be fun to max out both with that 2133mhz memory and see how they compare.

BTW, even though the JS numbers are higher, the difference likely isn't noticeable - if you were playing side by side with the same maximum tweeks you would think they were the same model.

So, again it comes down to living with Optimus, or not 🙂

It would be fun to see the battery run time with a video/BD-R playback or some equivalent light GPU use is between the JX and the JS. My JH gets 3 hours playback, and I hear the JZ gets 3.5hrs... a significant but not a big difference - I'd rather be Optimus free and carry a 2nd battery.

Keep us posted on the results!

I just did the transition from the JS to JX. Check the tweaking results for the JX after I figured a stable platform but it still needs little bit more tweaking.



What do you think? I already have a RA# but now am debating again lol

[hmscott]

Try maxing out GPU slider to 932 - everybody has been stable at max GPU, and you could keep bumping up memory by 100, but I maxed out at 5500.

You also need to install Intel XTU and set CPU Core multipliers sliders to max, and CPU Cache multi slider to max 🙂

And, reboot between changes and do a few 3dmark runs - it's windows so other things are running so there might be large variations in results from time to time, drop low runs from average.

Voltage setting doesn't do anything... slider works, number changes, actual voltage stays the same.

Don't forget to tweak Nvidia control panel 3d settings for performance B-)

[us18x]

I actually went and bought 2 G.Skill kits of 2*8GB so I will be running 32GB 2133Mhz soon! by the way they are running a promo code for the 2*8gb kit that saves you 10% and I actually did save $36 from the total which came to $323.98 which is not bad at all compared to $400 plus also it's free shipping!

http://www.newegg.com/Product/Product.aspx?Item=20-231-760

Promo Code (GSKILLBTS) Limited Offer

[Darnassus]

Blah, Optimus. >;c The copper heatsink is nice, though :'c