i7-620M benchmarks

CPU: Intel i7 620M Q3G5 (QS)
Test platform: Compal hm55 motherboard

 

cont'

 

Nice. Thanks for running these.

 

that 3dmark is weak granted the gpu is the main factor but the cpu score is lower than my I7 720QM http://service.futuremark.com/compare?3dm06=12434131

 

um what? the CPU score in the 620m and the 720 you just linked to are almost identical.


3163 for the 720 and 3133 for the 620.

 

Thanks to shirleyfu1117, I was able to compare i7 620M with the i7 720QM.

Core i7 620M/2 cores/2.66GHz
Cinebench R10 32-bit
Single Thread: 3615
Multi-Thread: 7786

WPrime
16.099

Everest
FPU SinJulia
2859

CPU Zlib
48288

Core i7 720QM/4 cores/1.60GHz
Cinebench R10 32-bit
Single Thread: 2966
Multi-Thread: 7702

WPrime
16.117

Everest
FPU SinJulia
3225

CPU Zlib
42192

Performance Summary:

Cinebench R10 32-bit
21.9%/1.9%(Single/Multi) advantage for i7 620M
Equal in WPrime
12.8% advantage to Core i7 720QM in FPU SinJulia
14.4% advantage to Core i7 620M in CPU Zlib

In multi-threaded apps the Core i7 620M was on par, or faster than Core i7 720QM.
In single and lightly threaded apps, there was no contest, the
Core i7 620M wins by miles. There's no reason to opt for Core i7 720QM.

 

All the more reason to hope that Intel does a quad-core Westmere refresh, as unlikely as it is.

 

Just bought one of these bad boys for my Envy.

Thanks Shirley!!!

 

That is exactly what Intel will be offering the beginning of the 2nd Qtr. Gulftown is based on the 32nm technology with 6-cores. Its coming out on the desktop first followed by Server.

 

Yeah I know Gulftown's coming, but that's never gonna make it into any laptop other than the Clevo D900F. Besides, there's only a single $1000+ Core i7 Extreme Gulftown CPU being released for desktops, which costs as much as most people's computers... All in all, Gulftown's just not very interesting for your average computer enthusiast.

Much more mysterious is Intel's plans for more quad-core "mainstream" (as in not Extreme Edition) chips. Intel hasn't said anything at all about their plans for future quad-core Nehalem architecture chips for either desktops or laptops, and most of the tech sites seem to believe that we won't be seeing any more quad-cores until Sandy Bridge.

 

Attention here!
All tests were performed one by one. It showed a better performance compared to i7-720qm becasue the laptop was performing single program all the time. After all, it has a higher core frequency.
However, when it comes to multiple program issue, it will be a different story.
In short, it is hard to tell which one is better. If you just use laptop to play games, i7-620 might be a better opt. But if you often deal with multiple programs at one time, choose a quad core CPU!

 

Don't think so. Cinebench is a multithreaded program. Kinda crazy to opt for 720QM which might have less than 5% advantage in superthreaded apps and drastic disadvantage in everything else.

 

All those benchmarks are multi-threaded except cinbench 1x cpu.

 

Thanks for those benchmarks Shirley. The only thing that is missing are temps. can you bench those maybe?

 

So if you have the choice between the 720QM or the 620m you should choose the 620m for gaming?

 

To be sure I understand the benchmarks I've seen in various places, do I have this right?

1. As stated above, 720QM seems like a chip that is very rarely preferable over the 620M. 720QM has worse or equal performance on most apps, certainly worse on true single threaded apps (to whatever extent people out there are really running very processor intensive single threaded apps -- I guess some games are), and better performance only where intense and extensively multi-threaded. On notebookcheck.net benchmarks, the 620M beats the 720QM on all benchmarks other than Cinebench multi-processor and wPrime 1024 (both of which the 720QM is much faster). 720QM is higher power draw. So usually, 620M a better choice.

2. 820QM, on the other hand, generally matches or beats the 620M in any benchmark other than power draw, and has a meaningful (10-20%) benefit in multithreaded apps. On the notebookcheck.net benchmarks, the 820QM beats the 620M on every benchmark other than SuperPi 1m (14 for 820QM vs. 13 for 620M), nominally in most cases, about 10% on CDMark06 and Cinebench single, and about 20% on Cinebench multi. More power draw than the 620M (though the power draw data I've seen shows the 820QM chip does much better than prior mobile quad cores at least on idle power draw), so it's a trade off. 820QM is going to be as fast or faster than 620M for almost every purpose (only extended truly single thread processor intensive application would the 620M be very slightly faster, and that's a rare situation), but also draw more power.

3. 920XM matches or beats the 620M on every benchmark, and again sizeably (20% better than the 820QM, and pounding the 620M) on Cinebench single and multi). But a much, much higher power draw.

I've seen a number of suggestions on these forums that the 620M may be faster for many people's uses than the quad cores, but I think that's only true for the 720QM. I think the 820QM will equal or exceed (by 10-20%, but not by a huge amount) the 620M performance in almost every case, and surely the 920XM will beat the 620M in almost any practical application scenario. Maybe gaming is the one scenario where someone really runs a processor intensive single thread for a long time. I don't know -- I don't play games, I'm focused on my very processor intensive photo and video editing uses.

Do I have the above right?

 

Yes...except for that bit about people arguing that the 620M is faster than all the quads. For the most part the CPUs this topic centers around are the i7-620M vs. the i7-720QM because they tend to cost the same (or close to the same) in notebooks.


If/when people are asking about the i7-620M compared to the i7-820QM/920XM it's likely got to do with the price....e.g. is the performance gain of the higher-end quads worth the extra cost.

 

doesnt the 620 use a different chipset from the other i7's (to make use of the igP)?
would it be possible to upgrade a 620/chipset to a higher end i7?
this could be a major consideration...

 

Some chipsets support both Arrandale and Clarksfield but the IGP may not be available for the Arrandale CPUs.

 

The i3/i5/i7s can work in either the PM55 or HM/QM55/57 chipsets. The difference is the former doesn't support the IGP. You can upgrade the 620M, depending on how much you want to spend, IMO the only worth while upgrade in terms of performance per cost would be the 820QM, but if money is no object, you can't go wrong with the 920XM.

 

but can you use the quan core i7's with an hm/qm chipset? afaik most 620m units come with this chipset to make use of the igp. it come come as a shocker to the owners that they may not be able to upgrade to the more powerful quads down the road.
the 920xm may be expensive now but that could change in 6months or so. and that indeed is a worthy upgrade

 

According to Intel's info The 920XM only works with the PM55 chipset.

http://ark.intel.com/Product.aspx?id=43126

The other quads work on any of the new chipsets.

http://ark.intel.com/Product.aspx?id=43124

http://ark.intel.com/Product.aspx?id=43122&processor=i7-720QM&spec-codes=SLBLY


Honestly I wonder if that's up to date though as the ASUS G73 uses the HM55 chipset and is being sold by resellers with the option for a 920XM. Same with the MSI GX740.

 

The quads should work with all chipsets, unless there is a separate block from say the company via BIOS.

 

How would the i7-620M compared with the i5-540M?

I know the i7 has twice as much as L3 cache, am I right?

the i7 is obviously faster but I'm curious to see by how much

edit: looks like the i7 has 4mb of L3 cache while the i5 has 3mb.

 

from what I've been reading the they all use the same pin layout and have the northbridge built into the processor

 

the g73 is using an hm55 chipset?
didnt know that. if thats true then you are right about the other i7's being compatible with the hm55

cheers

 

Are there any laptops with the 620 in it now? HP Envy line? Ya'd think the Sony F series too

 

Nice benches shirley.

Thanks for the Q9200, btw

 

I think Intel will release higher clocked i7 Quad in the Q2. Phase out current generation 720/920XE . 820 will stay as a entry level choice.

 

The Lenovo T410 offers the i7-620m