Investigating Intel's Turbo Memory: Does it really work?
by Anand Lal Shimpi on June 19, 2007 3:39 PM EST- Posted in
- Laptops
What About ReadyBoost?
Fundamentally, ReadyBoost accelerates a situation that you rarely want to be in: when your system is paging to disk. While it may be nice to accelerate those situations, you don't want to be in them to begin with. We've looked at ReadyBoost performance before, and largely concluded that while it can improve performance, if you are regularly depending on it for a performance boost it's probably time to add more memory to your system.
We revisited ReadyBoost with today's article, using a test similar to one we conducted in our Vista Performance Guide. We opened up Adobe Photoshop CS3 along with 91 6MP images, we timed how long it took to load all of them.
You can see there's a tangible improvement with ReadyBoost enabled, reducing the total load time by 24 seconds even with 1GB of memory, but the improvement itself is only around 7% quicker with ReadyBoost than without. Moving to 2GB of memory on the other hand nets a 33 second reduction in load time, or 10%. The lack of improvement going to 2GB indicates that we aren't swapping to disk too much to begin with, but 1GB was the smallest base memory size we had on hand at the time of our tests.
Obviously adding another GB of memory is more expensive than adding ReadyBoost, and in this case ReadyBoost can give you close to the same performance as adding the extra memory. If you look at more memory limited situations, such as those illustrated in our Vista Performance Guide, ReadyBoost is painted in a different light - as a bandaid solution to a problem that is better solved by adding more memory to your system.
The real benefit of ReadyBoost is somewhere in between those two extremes, but for the most part we don't see a significant use for it in systems with a good amount of memory to begin with.
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Alyx - Thursday, June 21, 2007 - link
It seems readyboost only helps with subsequent reads rather than the initial read, so it makes no sense as to why it would help in the case of watching a movie because the data is never repeated. I guess it just keeps the drive from idling because its farther between reads.I think this would help a lot for students, when I sit in class for an hour or two taking notes I'm only using one program so theoretically it would never have to access the hard drive for the whole class time. If a student had classes back to back without a way to charge (which is often the case) this technology could make a noticeable difference.
BigLan - Thursday, June 21, 2007 - link
It could help with movies if it's used as a read-ahead cache. Once the OS sees that the movie file has been read, it loads the whole of the movie into flash (or as much as would fit.)Also, if you're working in class with just word (or onenote) open, your hard drive should be pretty inactive anyway. Once the program is loaded into ram then the drive isn't read from. If you have an autosave feature turned on then that would hit the HD, but having the file on an external flash drive would get around that anyway.
xanderman - Saturday, November 7, 2009 - link
I have a 4GB Turbo Memory card installed, $65.I think the article could use a little update to reflect on the availability of faster and larger Turbo Memory cards at lower prices, to examine their overall effectiveness in this (newer?) format and pricing.
I don't know if there was any performance boost, never did any benchmarks and all I've been doing is setting up this new computer, then install i-ram and continue customizations.
I can tell you, however, that the installation was easy, one reboot, so the article is definitely way off in regards to installation, OUTDATED and UNRELIABLE.
Glad I never beleived them n the first place and bought the card despite their opinion.
casket - Thursday, June 21, 2007 - link
"However, adding 1GB of actual RAM won't improve battery life at all, and in fact it should reduce it slightly."-- What are the power requirements of Flash vs. Ram vs. Hard Drive?
I would have liked to have seen Anand test the power benchmarks on the additional 1 GB ram as well.
burnley - Thursday, June 21, 2007 - link
Wouldn't it be cool if the manufacturers could load safe drivers on something like this so when your mum gets a virus and you have to reload everything you don't have to either hunt for the driver disk, or hunt for the drivers online, just access them from an internal read-only drive?On-board network is great unless you don't have the motherboard driver disk and a fresh boot, then that loverly external USB flash drive is a godsend.
strikeback03 - Thursday, June 21, 2007 - link
Isn't that the point of these "hidden" hard drive partitions that so many computers have these days?burnley - Thursday, June 21, 2007 - link
Unless the hard drive fails, or you want to upgrade it, etc. Also that is only applicable on pre-built machines.A simple flash device with drivers could be put on add-in cards like graphics, etc.
Only an idea...
xsilver - Thursday, June 21, 2007 - link
1gb of ram can be had for a lot less than $100
JarredWalton - Thursday, June 21, 2007 - link
ReadyBoost capable USB Flash sticks are available for something like $15 for 1GB, $24 for 2GB, or a whopping $40 for 4GB. Turbo Memory modules on the other hand are not merely a USB device that you plug in, so they currently cost more. Of course, there seems to be a healthy price premium for the technology right now....Adding a 1GB ReadyBoost device is cheap and easy. Adding 1GB of Turbo Memory seems pointless as it will cost more than 1GB of actual RAM. However, adding 1GB of actual RAM won't improve battery life at all, and in fact it should reduce it slightly. So, you're paying $100 for slightly improved performance along with potentially better battery life.
BigLan - Thursday, June 21, 2007 - link
It seems like an extra $100 for this stuff would be better spent on an extra battery for your laptop which would double the battery life (though you have to switch them out and recharge them.) You could probably also afford a 1 gig flash drive for readyboost.