System Builder Marathon: $625 Gaming PC
Unsurprisingly, hardware prices have dropped since our System Builder Marathon last month, which means we have access to more processing power at our same $625 entry-level price point for gamers. Come check out the configuration Paul put together! Read More
-
Tom's Holiday Buyer's Guide 2008, Part 4
Welcome to part four of our Holiday Gift Guide coverage. This time around, the Tom's Hardware staff picks its favorite components for your wish list rounding out 2008. Read More
-
Tom's Holiday Buyer's Guide 2008, Part 1
Welcome to the first installment in our six-part Tom's Holiday Buyer's Guide. In Part 1, two beautiful models help showcase some of our favorite no-hassle hardware gifts for 2008. Read More
All performance charts
Partners
The Games selection
violent :
Friday the 24th
Exterminate Santa Claus's elves. Use the arrows to move, S to grab the elves, and A or W to attack them with your sword.
|
kids :
Dr. Joe
You need sound to play this game. Some of these lovely animals are sick, and as a veterinarian, it is your duty to find out what is wrong with them...
|
Sponsored links
Report: 3GB vs 6GB RAM on Core i7 Benched
Next news- Email |
- Print |
- Comments (50) |
- Share
Planning to build a brand spanking new Intel Core i7- based gaming system with that fancy new Intel X58 motherboard? Just make sure you toss 6GB of memory into the mix for the best possible experience, according to Corsair’s recent research.
Results from recent tests performed by Corsair indicate significant performance gains on systems with 6GB of RAM versus 3GB of RAM and Microsoft Windows Vista (x64). Corsair decided to go all out in its testing, using high-end system parts to eliminate any other hardware bottlenecks during the tests. Results indicate that it is essential for enthusiasts to opt for 6 GB, rather than 3 GB, if they are looking for the best possible experience, and of course, to move to a 64-bit operating system to support the large memory configuration.
Corsair utilized its own 3 GB and 6GB 1,600MHz Corsair Dominator DDR3 triple channel kits: (TR3X3G1600C8D , TR3X6G1600C8D). Test system specifications were as follows:
| Board | ASUS P6T Deluxe (BIOS revision 0804) |
| CPU | Intel Core i7-965 Extreme Edition |
| Video | Nvidia SLI 280GTX |
| Storage | 2 x Seagate Barracuda 7200.10 320GB in RAID-0 |
| Display | 24-inch TFT / LCD 1680x1050 |
| OS | Windows Vista Ultimate 64-bit SP1 |
| Driver | Nvidia 180.43 BETA (Required for SLI on ASUS P6T Deluxe) |
| Memory | Manually Configured @ 16000MHz 8-8-8-24, 1T (1.65v) |
| QPI Frequency | Manually Configured to 6400MHz |
| BClock | Manually Configured to 133MHz |
| CPU Turbo Mode | DISABLED |
| C1E,EIST | DISABLED |
| SpeedStep | DISABLED |
| Hyper Threading | Enabled |
Testing took place across several different games using built in benchmarking tools when available or third party, well known benchmarking tools when needed. Each metric was run three times with a reboot in between each run. Results for all three runs were used to calculate the average.
Substantial increases were noted in most cases, and in others, minimal increases. The areas across all games that showed the most increase was on the ‘minimum’ frame rate, which is the most limiting and affecting factor in gaming. The minimum frame rate of a game usually depicts heavy load on your hardware, and in most systems, indicates heavy memory usage – either system or video ram. Disk thrashing usually accompanies this characteristic. The higher your minimum frame rate is, the smoother the over-all experience tends to be.
Corsair’s Game Line-Up:
World in Conflict : Maximum details (Built-in Benchmarking Tool) Crysis Warhead : GAMER & PERFORMANCE settings (FBWH Tool) Warhammer Online : Maximum details (Actual Game Play + FRAPS)
All of the scores below come courtesy of Corsair. For more information on our own Core i7 testing, including number to indicate that adopting three channels won’t buy much extra performance, please read UPDATE: Core i7: Blazing Fast, O/C Changes.
World in Conflict Tests (Built-in Benchmarking Tool)
Results from these tests showed substantial increases across minimum, maximum, and average frame rates. The average increased by 19 percent. World in Conflict is a highly CPU intensive game similar to Supreme Commander, which explains the substantial increase in performance as heavy CPU load would hinder GPU data steam outputs. Each test was run at 1680 x 1050 in DirectX 10 mode.

Crysis Warhead Tests (FBWH Tool)
Test runs on Warhead did not show much in overall performance gain, but then again, Crysis is easily one of the most demanding titles out there when it comes to system and video resources, however. The minimum frame rate did increase from 17.9 to 22.5 utilizing the GAMER preset and DirectX 10 features. Not a substantial increase, but an increase none the less.
Results for the PERFORMANCE preset showed more increase over GAMER, however, the results for PERFORMANCE were quite a bit as it is, and would provide a very smooth playback no matter what. Both presets were run at 1680 x 1050 in DirectX 10 mode.


During actual game play with Crysis Warhead while using FRAPS, results did show a substantial increase in the minimum frame rate — jumping from 11fps to 33fps, using 3GB and 6GB respectively. This difference alone definitely makes a difference between unplayable and playable. FRAPS game play results were based on the scene All the Fury, repeatedly using the GAMER preset and DirectX 10.

Warhammer Online Tests (Actual Game Play + FRAPS
Warhammer can be pretty demanding on your hardware when played at maximum details especially when you are situated in an area with a lot of activity. It may not be as graphically demanding as Crysis, or other games for that matter, but it is definitely memory intensive.
Tests were run playing through a repeatable section of the game using FRAPS, results from each run were record and used to calculate the average. Results from these tests show increases across minimum, maximum, and the average. The average increased from 48fps to 53fps.

Game loading times were also tested across all three titles, and of course, Crysis again being the king crunch, showed quite a decrease in load times when the system ran 6GB of RAM versus 3GB. From the results we can see that a saved game load in Crysis Warhead showed a 12 percent faster load time with 6GB of system memory, while World in Conflict showed a 23 percent faster load time for the campaign ‘Behind the Iron Curtain’. Those are pretty impressive increases.

And lastly, during the tests, total system memory usage was recorded as well. All titles naturally used more memory when the system was configured with 6GB of RAM as opposed to 3GB. When more memory is available, more of it will generally get used.
This increased usage of memory by each title also decreases disk thrashing or stuttering due to disk access during game play. According to the results we can see that the total Windows memory usage was highest with Warhammer Online when the system was configured with 6GB of RAM.

The end result of Corsair’s test was that overall performance increased noticeably when the system was configured with 6 GB versus 3 GB. Most enthusiasts will do anything to squeeze extra performance out of a system, and this looks like a smart move. As 12 GB kits are not readily available at the moment, its hard to know whether performance would change as much as it does when jumping from 3 GB to 6 GB.
Moving to larger system memory arrays of 6GB will require users to move to the 64-bit platform, as 32-bit platforms do not support over 4 GB of memory.
Source : Tom's Hardware
- Need some help building graphics machine... please [Homebuilt Systems]
- Building a New Comp Please Help [Homebuilt Systems]
- Upgrade Q6600 or Buy New i7 920? [CPU & Components]
- First build (gaming) [Homebuilt Systems]
- 3 Phenom II builds for gaming. What's the right one for me? (~1200$) [Homebuilt Systems]
Questions? Ask Tom's community!
Sponsored links
Related forums topics
- Nehalem memory limitiations?!?!
- TheInq talks about Nehalem's performance
- Big step to the future,Gigabyte EX58 Extreme with Intel I7 Extreme 965
- DDR3-1333 Speed and Latency Shootout
- A rig for the next 5 years!
- My Partial Build (Please Help Me Fill In The Blanks)....
- PC Build - Suggestions?
- First time builder, built a computer and want your input!
- Finally buying a new computer and could use some input




This should be top new next to the 4870 X2 reviews.
Anybody else saying "duh". I thought 8gb was the "sweet spot" for vista 64-bit, anyway?http://www.tomshardware.com/reviews/vista-workshop,1775.html I will wait to see 12gb bench marks before I get all worked up.
Perhaps I just expect more, but I don't see the average improvement to be anything worth twice the money. ddr3 is expensive as it is!
I think that they mean 1600 MHz on the ram clock, not 16000 MHz.
6 gigs is better, now I'd love to see a review where we would take one part or the other and see if you are on a budget, what would be best to safe on.
Get a better processor, memory or vidcard for example. Other than that, thanks, it's nice to know that more is better. Though we already knew that.
I don't understand why despite having 3GB of ram the games don't max out the 3GB. Why can't the same results be acheived with 4GB as all of the total windows memory usages are under 4gb??
WAIT, YOU'RE TELLING ME THAT CORSAIR IS SAYING MORE MEMORY IS BETTER?!??! NO WAY!!!
wow...really.... thats like intel taking a quad core and saying they work better. Why doesnt TOMS do a article on this, not the memory manufacturer.
Could this have anything to do with the locality of the data in memory? Having to hit a memory stick physically farther away from the onboard memory actually affects performance and having higher density sticks would ideally reduce having to go farther away (stick 2/3 instead of 1) , but I guess not by *this* much??
Anyone else wondering if 4GB would be enough to see the same results? There are some articles about the performance difference between dual and tri-channel and they're really small.
Yeah i'd like to know if the same results occur with 4 GB of ram as i'm still rockin my LGA 775 q9550
For nihility: with 3x64-wide memory controllers, you want a multiple of 3 memory modules.
I'm curious how it would behave with 12GB. I *know* that for the GIS processing I'm doing (IBM INtellistation/Opteron/Linux based),
16GB is _lots_ faster than even 8 GB...
"Just make sure you toss 6GB of memory into the mix for the best possible experience, according to Corsair’s recent research."
enough said
wow...really.... thats like intel taking a quad core and saying they work better. Why doesnt TOMS do a article on this, not the memory manufacturer.
QFT. Seriously, this should be on the footnote page for a test bench that Tom's actually does themselves, not a full article itself. When did we start caring what the manufacturers claim?
There should be a disclaimer at the top of this page that reads:
WARNING: TOM'S WAS PAID TO ANNOUNCE THAT CORSAIR WANTS YOU TO BUY MORE RAM. WHO'DA THUNKIT?
Thankfully I see some have reading skills because I fear that most won't notice that this isn't an independent test by Tom's Hardware.
The title says: "Report: 3GB vs 6GB RAM on Core i7 Benched", suggesting this is a hardware related result. I however doubt that hardware plays such a big role here, since it just as well could be Vista related. Unfortunately Vista seems to lack ability to scale well in accordance to amount of RAM available. Looking at the results I'm more inclined to say we see an example of bad code.
Hi All -
Just wanted to chime in a quick note to clarify that this news piece is about a report done by Corsair engineers. It's mentioned in the article that it's not from us. If you find the information useful for buying decisions for Core i7, take advantage of it. If not, that's cool too!
The report is about 3GB vs. 6GB memory. In some instances, Corsair's report even indicates that there's virtually no difference in performance gains -- in other areas, there are.
Once you've made up your mind on whether double memory is useful, the best thing to do is do some shopping for your favorite brand and go from there.
Corsair did not buy this coverage nor did it gift us for it. We just felt it was an interesting study between 3GB and 6GB memory on Intel's latest Core i7 platform -- not about the Corsair brand.
/ Tuan
Latest core i7 platform? there was an earlier one? COOL!!! lol
What I want to know is dose the RAM speed effect performance since it now has a IMC?
1. Note vista 64 was used even in the 3GB test. Vista 32 would be a better, higher performing 3GB solution
2. Dual Channel enambed with both the 3GB and 6GB configs? Or were 1/2 the dimms pulled leaving a single channel?
3. As noted everywhere, this is not a Tom's review.
In other news:
Ford says you should own at least five of Ford vehicles for the best driving experience, the National Dairy Association says you should be drinking 5 cows worth of milk a day for the best health, and Coke says that Pepsi is bad for you. Seriously?
Why would you take any test results into real consideration that come from a company with a vested interest in selling you more of what they're saying you need?
Marketing 101. If you believe everything you read please go to school and take it.
For the person that asked if dual channel mode was disabled on the 3GB kit... I would doubt it. Corsair wouldn't want to give the impression that their 3GB kit was inferior in performance to competitors. The only difference seems to be the amount of memory used. Its obvious that the information carries bias, given that Corsair makes memory, but the results are interesting.
The positive effect on the minimum framerates in all the games seemed substantial. The Crysis Warhead FRAPS test was especially interesting to me.
Can Toms be troubled to give us an unbiased set of benchmarks on this?
I would like to see Tom talk the d*ck out of his mouth. Since that newegg deal I see quite a bit of corporate dong being sucked.
I am a huge fan of newegg by the way but this article is f*cking retarded.
Of course you should take the results with a grain of salt, but that doesn't mean you should disregard them altogether. As Tuan said, you can read this and then go and buy another brand. There will undoubtedly be less "questionable" benchmarks comparing 3GB and 6GB (and more hopefully) in the future which you can look at too, but until there is this is all that you can look at.
Take this piece of rubbish of Tom's now, please.
this is nonsense. how could ram increase framerates if the memory is not even saturated.
i could have believed that it will increase minimum framerates when a game is first loaded since there are games that allow you to play while at the same loading textures but increased maximum frame rates it is just not believable. if toms did a similar benchmark we'd see no differences at all.
hell, there's no useful difference in using the third channel on the ram. a dual channel config DD3 would suffice.
Lol,
Over 30fps Over 30 fps difference in a bench for a game due to RAM over 3gigs?
Lol.
GG.
Very best,
Where is the performance test of the exact same hardware with 3GB and Vista32bit or XP32bit?
1. Note vista 64 was used even in the 3GB test. Vista 32 would be a better, higher performing 3GB solution2. Dual Channel enambed with both the 3GB and 6GB configs? Or were 1/2 the dimms pulled leaving a single channel?3. As noted everywhere, this is not a Tom's review.
I saw some test the other day about vista 64 sp1 not being slower than vista 32. I don't remember where I saw it though. But afaik the only speed difference, apart from driver differences, would be that programs need to read twice as long addresses in memory access. And I really can't imagine that being so much slower, as most memory data isn't addressing but content of the given variables.
Of course you should take the results with a grain of salt, but that doesn't mean you should disregard them altogether. As Tuan said, you can read this and then go and buy another brand. There will undoubtedly be less "questionable" benchmarks comparing 3GB and 6GB (and more hopefully) in the future which you can look at too, but until there is this is all that you can look at.
Exactly.
I don't understand why despite having 3GB of ram the games don't max out the 3GB. Why can't the same results be acheived with 4GB as all of the total windows memory usages are under 4gb??
Windows internally (unless they changed this for vista) uses half of the memory available for its own purposes (up to 2gb), so even if games are 64bit and can address the full range of memory in a given system, it will always lose access to whatever part windows itself uses. While the memory windows uses can be put into the swap file, programmers of the games don't nessecarily want that, as it'll decrease harddrive access. In short. With 6gb memory even a 32bit application in vista 64 will be able to address the full 4gb, and with 3gb only 1,5gb without system data being swapped.
Wait just a moment. Corsair says you need double the amount of memory for twice the cost? Well, I guess we should trust them, they MAKE memory!
Wait just a moment. Corsair says you need double the amount of memory for twice the cost? Well, I guess we should trust them, they MAKE memory!
So if pirelli sais you need to replace your tires when the threads are gone, you automaticly assume you won't need any ? because they make money on it ? I see your point .... or something
Jokes ftw.... try learning to spot jokes lol
This isn't a comic page though. This is an enthusiast site for serious people.