New CPU or GTX 580

C

Caveman656

New member
Hello, I was just seeing if you guys can help me out.

I currently have the i5 760 "Overclocked at 3.7GHz" I was thinking about getting a new CPU.

But I also have the GTX 580, I was also thinking about getting another one so I can SLI.

I can only afford one of the two listed above.

What do you think I should go for?

My motherboard is the MSI P55-GD65 for anyone wondering.
 
IMO I think you should get the 580 to SLI then grab a new CPU later along the line when the new ones release.
 
it is a possibility but look at it this way any future upgrades would alleviate that issue
smile.gif
 
Deffo GPU first if you are getting graphics slow downs, no reason why you cant get more out of that CPU if you get a decent cooler either. 200bclk with 1600 memory should be easily do-able with a bit of effort
 
I'd say GPU, mainly cos I just got a 2nd 570 and it's ace
smile.gif


A second 580 would give you quite a substantial jump, though potentially in certain titles there might be a degree of CPU limitation. However this is likely to mean you get "only" 100fps rather than the 130fps a better CPU would allow - either is massive overkill for smooth gameplay of course
smile.gif


If you ultimately do go say Sandy Bridge-E or bulldozer then your cards would just get a new lease of life. I had my single 570 on my Q6600 @ 3.6 and was very happy with it, moving that card to my new 2500k REALLY let it fly though.

I don't think you'll regret getting a 2nd 580...in my experience (new to it) SLI has just worked and worked well, games I thought played well, such as Crysis 2, are now soo silky smooth with a 2nd card.

As Tom says, spending a little on better cooling to give your CPU a nice bump wouldn't hurt either
smile.gif


Best of luck to you!

Scoob.
 
Scoob said:
I'd say GPU, mainly cos I just got a 2nd 570 and it's ace
smile.gif


A second 580 would give you quite a substantial jump, though potentially in certain titles there might be a degree of CPU limitation. However this is likely to mean you get "only" 100fps rather than the 130fps a better CPU would allow - either is massive overkill for smooth gameplay of course
smile.gif


If you ultimately do go say Sandy Bridge-E or bulldozer then your cards would just get a new lease of life. I had my single 570 on my Q6600 @ 3.6 and was very happy with it, moving that card to my new 2500k REALLY let it fly though.

I don't think you'll regret getting a 2nd 580...in my experience (new to it) SLI has just worked and worked well, games I thought played well, such as Crysis 2, are now soo silky smooth with a 2nd card.

As Tom says, spending a little on better cooling to give your CPU a nice bump wouldn't hurt either
smile.gif


Best of luck to you!

Scoob.
Click to expand...

I'm looking to going Sli in the future as well and I just wanted to ask whether or not you have experienced any micro stuttering at all.
 
Scoob said:
Hi,

No, none at all and I've tried numerous titles so far, just silky smooth frame rates
smile.gif


Scoob.
Click to expand...

Thanks mate. I was worried because a lot of people have complained about issues, but I guess the newest drivers have fixed any issues that existed, or is it a case of luck where some people experience it and some don't?

Anyway I will have to try it in the future and see for myself.
 
yassarikhan786 said:
Thanks mate. I was worried because a lot of people have complained about issues, but I guess the newest drivers have fixed any issues that existed, or is it a case of luck where some people experience it and some don't?

Anyway I will have to try it in the future and see for myself.
Click to expand...

I really don't know. This is my first experience with SLI and I've no complaints. A friend of mine used to run a pair of 4870x2's in cross-fire and they were dire. He'd bench with very high scores and fraps would show silly FPS yet there was a constant judder that made it look like the FPS was low. I guess such issues have been fixed since, I don't know if prior NV cards suffered from this or not.

I'm using the 280.26 drivers, and had been using the previous set beforehand. I've had nothing but a positive experience so far. I mean, I installed the 2nd card, enabled SLI and ALL my profiles were updated automatically so I just got on and started benching and gaming in SLI mode. I didn't even need to update the drivers, or uninstall the them first...it just worked. I did later apply newer driver though, just cos I like to keep up to date.

Scoob.
 
Scoob said:
I really don't know. This is my first experience with SLI and I've no complaints. A friend of mine used to run a pair of 4870x2's in cross-fire and they were dire. He'd bench with very high scores and fraps would show silly FPS yet there was a constant judder that made it look like the FPS was low. I guess such issues have been fixed since, I don't know if prior NV cards suffered from this or not.

I'm using the 280.26 drivers, and had been using the previous set beforehand. I've had nothing but a positive experience so far. I mean, I installed the 2nd card, enabled SLI and ALL my profiles were updated automatically so I just got on and started benching and gaming in SLI mode. I didn't even need to update the drivers, or uninstall the them first...it just worked. I did later apply newer driver though, just cos I like to keep up to date.

Scoob.
Click to expand...

Cool. Thanks for your insight.
 
Not sure two 580s will run once you upgrade CPU and overclock that too on a 750w PSU. I have my system running on a 750w but I'm pretty sure two 580s will use more sparks than a pair of 5870s
 
The Protocol said:
Not sure two 580s will run once you upgrade CPU and overclock that too on a 750w PSU. I have my system running on a 750w but I'm pretty sure two 580s will use more sparks than a pair of 5870s
Click to expand...

Hi,

I run a pair of GTX 570's at 800 core with a 2500k @ 4.6ghz just fine.

My PSU, a Corsair HX750w has 744w on the 12v rail alone, though I'd of course not recommend running near this limit!

I don't know how much difference running an overclocked CPU/GPU makes when it comes to power-draw. However generally the voltage increases are minimal. I bump my GPU's up by around 0.010v to get my overclock, and my CPU only has 0.050v added to the VID for a given multi - this leads to ~1.4v on the CPU under VERY heavy IBT load at 4.6ghz.

Now, my 2500k is a 95w part, my 570's are ~220w - how much more is my overclock really adding? I don't know. Indeed will these parts ever actually draw anywhere near those levels at stock? Some places suggest not.

Quite often I've found that these "estimated" power requirement calculators are very inaccurate. I remember one of my prior builds "should" have been pulling like 600w+ under load, however I never saw more than 500w in benching and combined load (CPU & GPU) tests - and that was with my monitor and speakers in that plug too.

While I personally would always feel happier with an over-specced PSU (who wouldn't) I think a GOOD 750w would happily run an overclocked CPU and a pair over modestly overclocked 580's. IF the op was going to go water and do some EXTREME overclocking then maybe it'd be time for a rethink. But a modest overclock as I've done would be fine I'd expect.

I can only go on my experience with a pair of 570's but I'd imagine that overclocked at least they're pulling a bit more than a stock 580...that's per card of course.

Again I'll say that *I* would rather over-spec a PSU, however if a 750w is what you've got then that's what you've got so the question is will WHAT I'VE GOT work...I'd say yes in this instance...heavily caveated based on potential use and level of overclock of course.

One thing, no PSU will be efficient when pushed, they typically seem to run best at half-load or there abouts. Another reason to over-spec in my view.

Cheers,

Scoob.
 
Scoob said:
Hi,

I run a pair of GTX 570's at 800 core with a 2500k @ 4.6ghz just fine.

My PSU, a Corsair HX750w has 744w on the 12v rail alone, though I'd of course not recommend running near this limit!

I don't know how much difference running an overclocked CPU/GPU makes when it comes to power-draw. However generally the voltage increases are minimal. I bump my GPU's up by around 0.010v to get my overclock, and my CPU only has 0.050v added to the VID for a given multi - this leads to ~1.4v on the CPU under VERY heavy IBT load at 4.6ghz.

Now, my 2500k is a 95w part, my 570's are ~220w - how much more is my overclock really adding? I don't know. Indeed will these parts ever actually draw anywhere near those levels at stock? Some places suggest not.

Quite often I've found that these "estimated" power requirement calculators are very inaccurate. I remember one of my prior builds "should" have been pulling like 600w+ under load, however I never saw more than 500w in benching and combined load (CPU & GPU) tests - and that was with my monitor and speakers in that plug too.

While I personally would always feel happier with an over-specced PSU (who wouldn't) I think a GOOD 750w would happily run an overclocked CPU and a pair over modestly overclocked 580's. IF the op was going to go water and do some EXTREME overclocking then maybe it'd be time for a rethink. But a modest overclock as I've done would be fine I'd expect.

I can only go on my experience with a pair of 570's but I'd imagine that overclocked at least they're pulling a bit more than a stock 580...that's per card of course.

Again I'll say that *I* would rather over-spec a PSU, however if a 750w is what you've got then that's what you've got so the question is will WHAT I'VE GOT work...I'd say yes in this instance...heavily caveated based on potential use and level of overclock of course.

One thing, no PSU will be efficient when pushed, they typically seem to run best at half-load or there abouts. Another reason to over-spec in my view.

Cheers,

Scoob.
Click to expand...

I was going to say, the most popular one which name I cannot remember says my CPU overclocked should go from 130w rated TDP to around 210 - 220w TDP, but according to HW monitor the CPU's been pulling the same wattage (139.2w) both overclocked and at stock. I'm not sure if overclocking cards without increasing voltage would increase wattage signioficantly or not.

How much would you say my rig is using based on your experience, for example? (specs in profile)
 
The Protocol said:
I was going to say, the most popular one which name I cannot remember says my CPU overclocked should go from 130w rated TDP to around 210 - 220w TDP, but according to HW monitor the CPU's been pulling the same wattage (139.2w) both overclocked and at stock. I'm not sure if overclocking cards without increasing voltage would increase wattage signioficantly or not.

How much would you say my rig is using based on your experience, for example? (specs in profile)
Click to expand...

Hmm, I really don't know.

I assumed HW Monitor wasn't working quite right for me when it showed me at not much more than 95w for my CPU at 4.6! I'm gonna go run some more tests in a mo.

I need to get me one of those plugs that measures actual power draw, I borrowed one previously though that was used on my prior build.

I mean, I have 744w along on my 12v rail, so that's CPU and 2x GPU plus fans & 1 HDD. I thought 500 series GPUs threw a wobbly, I mean throttled, if power draw got too out of spec anyway. So I'd expect to hit obvious issues with the OC before the PSU tripped.

Oh btw: my GPUs are at 850 Core now. Benched fine in Vantage and '11 and Heaven 2.5, as well as an hour or so of Crysis 2 which heats up the GPU's even more and works the CPU at the same time. Incidentally voltage on the GPU's isn't even 3% over stock yet...

Cheers,

Scoob.
 
Scoob said:
Hmm, I really don't know.

I assumed HW Monitor wasn't working quite right for me when it showed me at not much more than 95w for my CPU at 4.6! I'm gonna go run some more tests in a mo.

I need to get me one of those plugs that measures actual power draw, I borrowed one previously though that was used on my prior build.

I mean, I have 744w along on my 12v rail, so that's CPU and 2x GPU plus fans & 1 HDD. I thought 500 series GPUs threw a wobbly, I mean throttled, if power draw got too out of spec anyway. So I'd expect to hit obvious issues with the OC before the PSU tripped.

Oh btw: my GPUs are at 850 Core now. Benched fine in Vantage and '11 and Heaven 2.5, as well as an hour or so of Crysis 2 which heats up the GPU's even more and works the CPU at the same time. Incidentally voltage on the GPU's isn't even 3% over stock yet...

Cheers,

Scoob.
Click to expand...

Running

- 1090T

- 2x 4GB 1333Mhz DDR3 but should be upgrading to 4x 4GB

- Crosshair IV

- 2x 5870 1GB

- Xonar DG

- 4x Spinpoint F3 1TB

- 3x Excaliburs

- 1x NZXT 200RB

- D14 fans

- OCZ Fatal1ty 750w

Do you think there's enough juice remaining to overclock to at least 3.8Ghz?

BTW profile spec is wrong, everything is at stock after started getting BSODs all of a sudden after a few months
 
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