So now that games can fully utilize 2 cores...

ArchAngel777

Diamond Member
Dec 24, 2000
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Originally posted by: Jeff7181
Now that games can fully utilize 2 cores (UT3 Demo), do we need quad core processors to be able to do stuff like encode in the background while gaming?

Post your thoughts.

If an application can peg two cores, then a third core would improve performance as it could handle all the windows task. But, in general, I would say no, because most applications outside of encoding/decoding will not use 100% of each core...

But it did occour to me that perhaps the small performance increase seen from 2 t o4 cores in these new game engines is due primarly to a 3rd and 4th core handling background tests...
 

myocardia

Diamond Member
Jun 21, 2003
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Originally posted by: ArchAngel777
But it did occour to me that perhaps the small performance increase seen from 2 t o4 cores in these new game engines is due primarly to a 3rd and 4th core handling background tests...

Funny that you mention that, because I also considered it, and came to a different conclusion. Remember how much UT3 likes cache? What if the demo isn't quad-core-enabled at all, but it was using cores #0 & 2? That would give it twice the usable L2 cache as the 4MB dual-core.

And to the OP, yes, you would need a quad-core, to be able to do something that was cpu-intensive (like encoding), while using any dual-core capable game, not just UT3.
 

Jeff7181

Lifer
Aug 21, 2002
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How long do you think it'll be before a single app (game) can fully utilize 4 cores? It took all of what... 2 years for games to show up that show obvious benefits to having a dual core processor?
 

Acanthus

Lifer
Aug 28, 2001
19,915
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ostif.org
Originally posted by: Jeff7181
How long do you think it'll be before a single app (game) can fully utilize 4 cores? It took all of what... 2 years for games to show up that show obvious benefits to having a dual core processor?

Id say less than a year.

Supreme Commanders new expansion comes out soon, Alan Wake is well on its way.

Theres another handful of titles coming out that will at least partially support it.
 

hans007

Lifer
Feb 1, 2000
20,212
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well for most games that use dual cores, the thread that is just doin gphysics or sound is probably not fully loading the cpu its using.... so i figure background processes would still be ok...

if you well wanted to say reencode divx at the same time as playing then ok maybe quad or more would make a difference.
 

Jeff7181

Lifer
Aug 21, 2002
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Originally posted by: hans007
well for most games that use dual cores, the thread that is just doin gphysics or sound is probably not fully loading the cpu its using.... so i figure background processes would still be ok...

if you well wanted to say reencode divx at the same time as playing then ok maybe quad or more would make a difference.

Did you look at the screenshot I posted of both of my cores at an almost constant 100% load? It was taken while I played a quick match in UT3 with my X2 3800+ at 2.6 GHz and a 7900GTX.
 

Keysplayr

Elite Member
Jan 16, 2003
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Hmmmm. How many people here actually do video encoding (or the like) in the background while they are gaming?
Please. Surprise me. Most I'll do is download something while gaming. Anyone else?
 

Sylvanas

Diamond Member
Jan 20, 2004
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I thought there was a difference between 'load balancing' between 2 or 4 cores for a performance increase and full blown 'multithreading' assigning different tasks to a core for a bigger impact? Perhaps someone more clued in than I can comment
 

Sylvanas

Diamond Member
Jan 20, 2004
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Originally posted by: keysplayr2003
Hmmmm. How many people here actually do video encoding (or the like) in the background while they are gaming?
Please. Surprise me. Most I'll do is download something while gaming. Anyone else?

Agreed. I never really have anything running while gaming except maybe ATI tool or something open monitoring temps and thats about it.
 

biostud

Lifer
Feb 27, 2003
20,158
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yes, even a simple task like running Spybot S&D while playing QW:ET made the game very choppy, but I would suspect the HDD access is what is most annoying.
 

MDE

Lifer
Jul 17, 2003
13,199
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Originally posted by: keysplayr2003
Hmmmm. How many people here actually do video encoding (or the like) in the background while they are gaming?
Please. Surprise me. Most I'll do is download something while gaming. Anyone else?
Me. I run Transcode360 so I can watch my Xvid\Divx files on my Xbox 360 through Media Center.
 

Denithor

Diamond Member
Apr 11, 2004
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Originally posted by: keysplayr2003
Hmmmm. How many people here actually do video encoding (or the like) in the background while they are gaming?
Please. Surprise me. Most I'll do is download something while gaming. Anyone else?

Surprise!

I leave F@H running in the background while I game. Running an e6400 @ 2.8 and it doesn't seem to make any difference in the games I play (WoW, FarCry, BF2).
 

Jeff7181

Lifer
Aug 21, 2002
18,368
11
81
Originally posted by: keysplayr2003
Hmmmm. How many people here actually do video encoding (or the like) in the background while they are gaming?
Please. Surprise me. Most I'll do is download something while gaming. Anyone else?

/sigh

Ok then...

Now that games can fully utilize 2 cores (UT3 Demo), do we need quad core processors to be able to do stuff like run background processes that require CPU time?

In other words... is it necessary to have extra cores available to do the processing, or is just having multiple cores to balance loads enough?

Obviously 4 cores can process more data than 2 cores, all else being equal. But without regard to the amount of work that gets done, are 2 cores enough to ensure the foreground task doesn't slow to a crawl because of another task? That's the biggest difference I noticed when switching from a single core to dual core processor. It seems even with both cores at 100%, my foreground application doesn't take nearly as big a performance hit as it did with a single core when another process needs CPU time.
 

taltamir

Lifer
Mar 21, 2004
13,576
6
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about the only advantage I have been having with duel core... is the rapid increase my in seti@home rank...

As for "when can games utilize multiple cores"...
the answer is some years ago... but CAN do DO are different things...

Most games aren't gonna BOTHER writing the code for more then two cores just like most games haven't bothered to write code for working with physics cards... They just don't deem it valuable enough to performance and widely enough spread among the consumer base to bother with it.

Seeing as single cores are now phased out (dates have been announces for discontinuation of production) it is now the time to develop games that are duel threaded... in a year it will probably make sense for quad threaded games...

But seeing as you probably meant "when can I expect to be able to buy games that will take advantage of my quad core machine" then the answer is within a year, probably.
 

Skott

Diamond Member
Oct 4, 2005
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I'm wondering how many cores do we get to before we get to the point of having too many cores and not getting any extra benefit from all those extra cores? 2? 4? 8? I heard we'll have 8 core procs by end of 2008 or beginning of 2009. I'm just wondering at what point does Intel & AMD say, "okay, adding more cores isnt giving users/developers anything extra so we need to come up with something new and different in our design"

Anyone have thoughts as to where we reach saturation of multicores? If we ever do?
 

zach0624

Senior member
Jul 13, 2007
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I just started monitoring UT3 to see my cpu usage(5600+ at 3.15) is running between 97 and 100% at all times! I can see how a stock clock e2XXX or e4XXX can be a bottleneck in this case even on a 7900gs at 1680x1050.
 

MarcVenice

Moderator Emeritus <br>
Apr 2, 2007
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Erm, encoding whilst playing cpu-intensive games? You'd have to be running with at least 4gb of memory to do that ... Not everything is cpu dependable. You're going to need the ram and the HD to keep up with your CPU. We won't be able to do a million tasks at the same time, we are going to be able to do some tasks at the same time, at continously increasing speeds, but even those increasing speeds will hit a brick wall sooner or later. I wonder when tbh, 8 cores ? 16 ?
 

MDE

Lifer
Jul 17, 2003
13,199
1
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Originally posted by: MarcVenice
Erm, encoding whilst playing cpu-intensive games? You'd have to be running with at least 4gb of memory to do that ... Not everything is cpu dependable. You're going to need the ram and the HD to keep up with your CPU. We won't be able to do a million tasks at the same time, we are going to be able to do some tasks at the same time, at continously increasing speeds, but even those increasing speeds will hit a brick wall sooner or later. I wonder when tbh, 8 cores ? 16 ?
Gaming while encoding works just fine for me using 2GB and a 3.4GHz Q6600.
 

biostud

Lifer
Feb 27, 2003
20,158
7,277
136
Originally posted by: taltamir
about the only advantage I have been having with duel core... is the rapid increase my in seti@home rank...

As for "when can games utilize multiple cores"...
the answer is some years ago... but CAN do DO are different things...

Most games aren't gonna BOTHER writing the code for more then two cores just like most games haven't bothered to write code for working with physics cards... They just don't deem it valuable enough to performance and widely enough spread among the consumer base to bother with it.

Seeing as single cores are now phased out (dates have been announces for discontinuation of production) it is now the time to develop games that are duel threaded... in a year it will probably make sense for quad threaded games...

But seeing as you probably meant "when can I expect to be able to buy games that will take advantage of my quad core machine" then the answer is within a year, probably.

I guess you don't count, Quake IV, Supreme Commander, UT3 based games, Crysis and several others as games that can use multiple cores.....

here are some examples of what happens when using multiple processors:
http://www.tomshardware.com/20..._processing/page5.html

Surprise!

I leave F@H running in the background while I game. Running an e6400 @ 2.8 and it doesn't seem to make any difference in the games I play (WoW, FarCry, BF2).

maybe because F@H is running in low priority, so as soon as another application uses the CPU F@H are down-prioritized.
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
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Originally posted by: biostud
Originally posted by: taltamir
But seeing as you probably meant "when can I expect to be able to buy games that will take advantage of my quad core machine" then the answer is within a year, probably.

I guess you don't count, Quake IV, Supreme Commander, UT3 based games, Crysis and several others as games that can use multiple cores.....

here are some examples of what happens when using multiple processors:
http://www.tomshardware.com/20..._processing/page5.html

That's good, you quote him saying "games will be taking advantage of quads within a year", then link to a couple of games that show a slight advantage with a dual-core, over a single core, with one of them somehow having lower fps than the single core.:laugh: