**Nvidia GeForce GTX 980 Ti Review Thread**

[setter]

G1 looks very good, got the msi gaming edition on preorder but very tempted to step up. Its an extra 50 quid though when accounting for delivery to NI.

 

[IT Troll]

Why do none of the factory overclocked cards have overclocked memory? Is there little benefit or is this an Nvidia restriction?

In the reviews were they they have overclocked the memory they have also overclocked the GPU so it is hard to tell the effect.

 

[RanxZy]

G1 looks very good, got the msi gaming edition on preorder but very tempted to step up. Its an extra 50 quid though when accounting for delivery to NI.

I stepped down from the Hybrid after seeing how well the G1 performs. You might benefit more from the Gaming though if you ever plan to go SLI like with the 780s. I do believe those dual big fans on the Twin Frozr make less noise than many other designs.

Since I'm almost certainly sticking with one card, the G1 suits me well with that ridiculous 1241 Base clock in the factory OC mode. That's higher than the Hybrids boost clock!

That way I won't even have to push it manually and it would go only as high as the manufacturers OC. I just hope it really can stay at those clocks without instability. I remember some people having problems with the 780Ti Ghz Edition from Gigabyte not being stable at it's high factory OC.

 

[RanxZy]

Why do none of the factory overclocked cards have overclocked memory? Is there little benefit or is this an Nvidia restriction?

In the reviews were they they have overclocked the memory they have also overclocked the GPU so it is hard to tell the effect.

Memory OC has much less gains in fps compared to core clock OC. It would be really bad for business to potentially get more returns due to unstable memory when there is such little performance benefit.

 

[SeeNoWeevil]

Watch this video from 6:19 onwards should help you get an idea of why.

You or either heat, voltage or power limited on the card.

Why when he raises the voltage does he then have to also raise the clocks manually. If the card is at a voyage limit, wouldn't raising it allow GPU boost to go higher on its own?

 

[Brumboy]

I stepped down from the Hybrid after seeing how well the G1 performs. You might benefit more from the Gaming though if you ever plan to go SLI like with the 780s. I do believe those dual big fans on the Twin Frozr make less noise than many other designs.

Since I'm almost certainly sticking with one card, the G1 suits me well with that ridiculous 1241 Base clock in the factory OC mode. That's higher than the Hybrids boost clock!

That way I won't even have to push it manually and it would go only as high as the manufacturers OC. I just hope it really can stay at those clocks without instability. I remember some people having problems with the 780Ti Ghz Edition from Gigabyte not being stable at it's high factory OC.

Yeah the base clock is quite high!

But in that review they managed to boost it to:

Core Clock 1302 MHz
Boost Clock: 1452~1477MHz
Memory Clock: 7818 MHz

http://www.guru3d.com/articles_pages/gigabyte_geforce_gtx_980_ti_g1_gaming_soc_review,36.html


So would a Core Clock 1302 MHz be stable for gaming use?

 

[saintdefender]

My 980TI was boosting to almost 1600mhz with a +200 on the core during Valley Benchmark. My overall score was 3772, with an average FPS of 90.2. Highest FPS hit was 156.9. This was using maxed out settings.

 

[Brumboy]

Damn! Nice one!

What increase in FPS did you get in games with that overclock?

I haven't overclocked before so I'm still learning about it.

Here are the settings they used in that review

• Temp Target 85 Degrees C
• CPU clock +150 MHz (from default 1152 MHz)
• Mem clock +375 MHz
• Voltage + 50Mv
• FAN RPM 55% (recommended but a little more is noisy)

Do you reckon that's safe to use?

 

[MOOGLEYS]

The indicator in valley is not very accurate and usually over reads. I would use something else to show clock speed.

 

[saintdefender]

Damn! Nice one!

What increase in FPS did you get in games with that overclock?

I haven't overclocked before so I'm still learning about it.

Here are the settings they used in that review

• Temp Target 85 Degrees C
• CPU clock +150 MHz (from default 1152 MHz)
• Mem clock +375 MHz
• Voltage + 50Mv
• FAN RPM 55% (recommended but a little more is noisy)

Do you reckon that's safe to use?

You know I didn't test the benchmark before the overclock, perhaps i'll give it a test run later today. To be honest as soon as I received my card I pretty much just stuck +200 on the core right off the bat because I know that many 980ti's are able to achieve this. I haven't touched the memory or voltage.

 

[saintdefender]

The indicator in valley is not very accurate and usually over reads. I would use something else to show clock speed.

You're right, as soon as I stuck on OSD from MSI it reads at 1415. I will try and hit 1500 when I get the chance.

 

[Brumboy]

You know I didn't test the benchmark before the overclock, perhaps i'll give it a test run later today. To be honest as soon as I received my card I pretty much just stuck +200 on the core right off the bat because I know that many 980ti's are able to achieve this. I haven't touched the memory or voltage.

So when you say +200 on the core you increased the Core Clock: 1000MHz to Core Clock: 1200MHz? then it gets to 1600MHz with boost clock?

 

[saintdefender]

So when you say +200 on the core you increased the Core Clock: 1000MHz to Core Clock: 1200MHz? then it gets to 1600MHz with boost clock?

Partly correct. I did just change the core clock from 1000 to 1200, however Valley was giving me an incorrect reading. After running MSI OSD, I can see that my clock speeds are hitting 1422MHz currently.

After doing some research, the valley readings are not to be trusted evidently. One guy was reporting a 1.3 million degrees temp with valley ^^

 

[Brumboy]

Partly correct. I did just change the core clock from 1000 to 1200, however Valley was giving me an incorrect reading. After running MSI OSD, I can see that my clock speeds are hitting 1422MHz currently.

After doing some research, the valley readings are not to be trusted evidently. One guy was reporting a 1.3 million degrees with valley ^^

Ah I see, the G1 managed to be set at Core Clock 1302 MHz and Boost Clock: 1452~1477MHz.

So I could just add +300 onto the Core Clock when I get it next Tuesday, That's all that's needed?

I just hope that will be stable, since I'm going to play at 4k, every bit of extra FPS would be handy

 

[PrinceNelson]

My 980TI was boosting to almost 1600mhz with a +200 on the core during Valley Benchmark. My overall score was 3772, with an average FPS of 90.2. Highest FPS hit was 156.9. This was using maxed out settings.

Never use the in-engine reads-out. Use GPU-Z as it's far more accurate and reliable. Valley was once saying i had close to 1700+, nonsense.

Run it again and take reading from GPU-Z and report back.

 

[saintdefender]

Ah I see, the G1 managed to be set at Core Clock 1302 MHz and Boost Clock: 1452~1477MHz.

So I could just add +300 onto the Core Clock when I get it next Tuesday, That's all that's needed?

I just hope that will be stable, since I'm going to play at 4k, every bit of extra FPS would be handy

Yeah you could try it, it is a case of playing the lottery however as you're millage may vary.

 

[IT Troll]

Do you mind me asking how you know this?

Just to put my mind at ease

Just conjecture really. They came into stock yesterday in Germany, which from a distribution point of view, fits with them arriving in the UK today (previously given as an expected arrival date).

 

[James J]

Worth going to a 980 ti from 780 ti sli?

 

[RanxZy]

So I could just add +300 onto the Core Clock when I get it next Tuesday, That's all that's needed?

It's a bit confusing because of the different original base clock the G1 has compared to reference. I would start with a +150 core maximum (+300 from reference basically) . This is because the reference has a 1000MHz base clock but the G1 has a 1152MHz base clock so it has +152already.

Or you could do what I'm going to do and just download the Gigabyte software and see what the 1291MHz factory OC mode boosts up to for hassle free performance.

 

[Brumboy]

Yeah you could try it, it is a case of playing the lottery however as you're millage may vary.

Yeah true, I've read that Gigabyte have fairly good GPU chips for overclocking, not sure if that's true though

It's a bit confusing because of the different original base clock the G1 has compared to reference. I would start with a +150 core maximum (+300 from reference basically) . This is because the reference has a 1000MHz base clock but the G1 has a 1152MHz base clock so it has +152already.

Or you could do what I'm going to do and just download the Gigabyte software and see what the 1291MHz factory OC mode boosts up to for hassle free performance.

It doesn't stop there though, the all custom Gigabyte GeForce GTX 980 Ti G1 gaming has a default Boost frequency of 1241 MHz (base clock is 1152 MHz). However if you combine it with their OC Guru software and place it in OC modus, this puppy will default towards 1291 MHz on the Boost clock with a base-clock of 1241 MHz -- hellooohooww ! I say again, 1291 MHz on the Boost clock

So with Gigabytes own OC software it'll be 1241 MHz Core clock with a 1291 MHz boost clock.

But in that review they pushed the core clock to 1302 MHz which gave a 1452~1477MHz boost clock, that's because of the Voltage + 50Mv?

I'll just use Gigabytes own software like you're going to do to get 1291MHz boost clock, then maybe push it to 1300Mhz later