Uber ultra fast laptop memory

Newegg.com - Kingston HyperX 4GB (2 x 2GB) 204-Pin DDR3 SO-DIMM DDR3 1866 Laptop Memory Model KHX1866C9S3K2/4GX
Wow.. 1866 MHZ DDR3
Are there any laptops that come with this memory or are compatable with it?
After Effects CS5 uses RAM preview and editing 1080p clips with 1333 MHZ CL9 is starting to be a pain. I'm looking for some serious overkill
so, can I just buy this and put it in my laptop? model and specs below v

Edite: I know my laptop's RAM can be removed, I've removed it and put it back in before

 

Has high CAS latency compared to 1066, so IDK if it would be better.

 

My brothers laptop, i5-540M, 1066MHZ CL7 plays the RAM preview on AE CS5 at 5 FPS, while my lappy, 1333MHZ CL9 played it at 18 FPS, same clips used.

So. I think video editing needs raw MHZ

Edit: he's got the Mobility Radeon HD 5650, slightly better than 330M

 

Okay. I don't think even 1600mhz ram is widely useable in laptops yet. I think it just will downclock to 1333.

 

That memory is useless in 99.99% of laptops. It will just downclock to 1066MHZ or 1333MHz. A waste of money, this memory is.

Thats what I said in laymen's terms

 

'fast memory' will only run as 'fast' as the machine/chipset is capable of.

cpu/memory are usually the fastest components in a computer. They will always be held back by the hard drive, the network, and the user.

 

same here... get 1333MHz RAM but only if your going to use an i7 CPU as and i5 or i3 can only use 1066MHz RAM at most.

 

I would say it's good for some overclockin but i agree with everybody else.

 

It'd be nice if they tarted focusing on lower voltage ram like they have in the desktop segment. We don't need more bandwidth right now.

 

They have. Normal DDR3 ram found in most laptops is 1.5V, but you can buy some that runs at 1.35V:

Link
Link

The standard is called DDR3L. Meanwhile, DDR4 will be 1.2V, 1.1V, and lower.

 

Great news! I'll probably buy two 4GB dimms as soon as they hit the market.

 

again, ddr3l will only function in machines and with chipsets that support it.

 

Since (most) laptops do not allow you to change the FSB/RAM divider no matter how fast the RAM is that you put into the system it will run off of the default divider. So if you put 16000mhz RAM into a machine designed with 1333 it will just downclock.

You say "it would be good for overclockers" but that is not really true either because when the machine boots with the 1333mhz SPD timings they are "tighter" than the timings for 1600mhz and thus the RAM has a tendency to get unstable just as easily as stock rated 1333mhz RAM.

Often times lower rated RAM performs exactly the same anyways it just was not tested or given SPD timings to be higher performing RAM. The have to do this of course to make more money by selling the same product at a lower price point as a lower performing item even if it can perform the same as the top grade stuff.

 

I don't see it as more than just a BIOS update to add support.

 

your 'estimation' as to the ease of such support bears little to no bearing on the likelihood of a bios maker to incorporate such support......

 

If your brother has an i5 and you have an i7 quadcore, it sounds like you are looking for a faster CPU, not faster RAM.

 

True, but you can always request and hope.

 

Wait for Sandy Bridge around new year. Will support DDR 1600 RAM

 

While also pretty much wiping away any hope you ever had of overclocking.

Also @OP, if you've overclocked your system through your FSB then the RAM also gets overclocked too so then it might be usefull, however, for me to get my RAM running at 1866mhz, I'd have to clock my CPU at something like 4Ghz which isn't realistically going to happen on a laptop.

 

Someone didn't bother reading this product's technical specifications.

It's rated at the same timings for 1333MHz as it is for 1866MHz.

Of course all what you say is generally true (e.g. 1066cl7 vs 1333cl9) but that isn't the case here.

 

Not everyone likes to overclock...

 

You can always tighten the memory timings with an SPD flash tool. Thaiphoon Burner works well for that. It's compatible with your chipset too.

 

Then you don't buy RAM capable of running at 1866MHz because you just will not find a way to get it to run that fast without overclocking.

1866/1333 = 40% BCLK overclock which is doable on a variety of mobile CPUs, esp 32nm arrandales.

 

more and more memory is 'immune' to hacking via SPD flash tools......

 

I remember when I first got my DDR3 memory for a desktop and tried to change the SPD only to find it read only. After some investigation it was only the first 128 Bytes that were locked read only, the last 128 Bytes were writeable.

That meant it was possible to write an XMP profile and IMO this is a great idea as long as the BIOS supports XMP profiles. No longer do you have to hot flash if the timings fail, just switch back from XMP to defaults.

Seems a few of the newer laptop BIOSes have XMP and I wonder if this is a trend that will prevail.