GTX 295

[The Borg]

Hi guys,

Had a search of the forum, but could not find anything, so asking...

What is the maximum overclock of the GTX 295? My supplier said that it would not be much and all the card I have see from the various manufacturers all have the very same settings:

Core: 576
Shader: 1242
Memory: 999
Fan: 41

For a sandwich card, this is understandable.

I have managed to push mine up to 615; 1326; 1050 without any problems so far. Temps just on 70deg C and running two WU's of GPUGRID. That is almost 7% OC. Was not expecting that much. BTW, it is an EVGA card, if that helps.

 

[Zap]

Originally posted by: The Borg
What is the maximum overclock of the GTX 295? My supplier said that it would not be much and all the card I have see from the various manufacturers all have the very same settings:

Core: 576
Shader: 1242
Memory: 999
Fan: 41

NVIDIA requires "stock" clocks on air-cooled cards. As with overclocking anything, there is no set maximum. It is up to you, your card and luck.

I found a post at one time (can't seem to find it again) by an EVGA employee on the EVGA forums that showed around a 200MHz core overclock (with shader OC as well) by bumping voltage up around 0.2v using the EVGA Voltage Tuner application. It had screenshots of the speed but no other details so I don't know if it was actually stable at those speeds or if it was even aircooled or watercooled. I would imagine that once you pass the mid-600 on core and past around 1500 on shader, you'll need to run fans really fast or switch to watercooling.

One thing that I've done which decreased temperatures a few degrees is to have fans blowing down on the cards. That might or might not help get a few more MHz.

 

[cmdrdredd]

I'm currently running 612/1368/1188

Lower on the core than is possible I'm sure but it did give me a bit of issues when I raised it up too far, figured stay lower than the max cause this card is more than I need already.

 

[The Borg]

Thanks guys.

Running mine at 650/1401/1130 with fan on auto at 44% anf temps at 74 and 75 deg C.

Rather impressed. No increases in voltage. No stability isses yet either. I do have my case side off, but need to have it off as a result of the CPU.

 

[gungadinn]

Hello,

Im running my gtx 295 at
661 mhz core
1150 mhz memory
1425 mhz shader

Full load temps @ 58C (radiator fan on low) on water using a Danger Den block that I installed as I couldn't purchase one already made. They say it's a tad difficult but I had no issues. Great product, Great customer service.

Plan on pushing her way higher just letting her break-in before I ride'er hard and put'er away wet so to speak!

 

[chizow]

EVGA GTX 295 HydroCopper edition @ 720/1548/1080 should give you an idea of the upper bounds on this part. As others have noted it probably comes down to temperatures first and vcore second limiting your overclock. What I've consistently noticed also is that the GTX 295 uses slower rated AM that only runs at 1000MHz stock and doesn't come anywhere close even when overclocked to the faster modules that hit 1300-1500MHz on the GTX 285. Its unfortunate because I think this part would definitely benefit from the additional bandwidth, particularly at higher resolutions with AA.

 

[The Borg]

Been able to get my card to 700/1509/1215. Fan running at 45 - 50% and temps at 77deg C. Seems like the old P4's where the run runs up and down to maintain a certain temp. Not seen temps higher than 77 or 78 here.

 

[TidusZ]

Originally posted by: The Borg
Been able to get my card to 700/1509/1215. Fan running at 45 - 50% and temps at 77deg C. Seems like the old P4's where the run runs up and down to maintain a certain temp. Not seen temps higher than 77 or 78 here.

if you haven't seen more than 78c at 50% fan speed you don't have the same gtx 295 that card the rest of us are talking about. Mine goes above that in crysis at faster fan speeds and up to 92c at 100% fan in OCCT/furmark.

 

[imported_wired247]

sandwich cards can start showing artifacts very quickly when you try to overclock. Obviously with 2 GPUs on 1 device it is hard to keep cool.

I'd keep it stock.

 

[The Borg]

Mine is just running GPUGRID. Have not checked with Crysis.

 

[MrK6]

Originally posted by: The Borg
Mine is just running GPUGRID. Have not checked with Crysis.

Sounds like you need a more intensive program. Crysis is good, as is Furmark. ATI Tool doesn't work that well (doesn't push the card hard enough).