Is +25mV alot?

[Izumi Reina]

I was wondering if +25mV alot.

Since on my EVGA GTX 750TI

no extra voltage I get

+250mhz core clock

+700mhz memory clock

 

extra +25mV

+300mhz core clock

+700mhz memory clock

[Bananasplit_00]

not really, i have my 970 at +67mV or something. you cant really hurt a GPU on defult bios

[vanished]

Think of a CPU.  People will turn chips up from the 1.1 v range to 1.3 v for example, which would be +200 mV.  Yes that's a different kind of chip but they have enough in common for it to be an ok example.

[MMKing]

Short answer: Yes, but don't worry about it.

 

Long answer:

The AMD 7900 series GPUs were relatively good bitcoin miners in their days. So some people would buy them, overclock them to the limit and run them at 99-100% load for weeks/months at a time with little downtime. It did cause noteworthy performance degradation over time. Which is how you should look at transistor lifespan, on a die with several billion transistors. It's more important how many years it takes to kill 5 or 10% as opposed to how many years it takes to kill it completely.

 

What happens is that the transistor loses it's ability to control the flow of electricity, partially or completely. In essence, it loses it's ability to decide if it's a 1 or a 0.

 

Yes, increasing the voltage and running a cpu/gpu at high loads and high heat will cause noteworthy performance degradation after years of use. But it isn't really an issue. The 28nm transistor is large enough to last several years of normal use even with a hefty overclock, and the next generation 14/16nm transistor utilize a ''finfet'' design, which will eliminate the issue for a couple more transistor shrinks.