is my i7 3770k temprature high?

Rashad_5

Prominent
May 13, 2017
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hello every one;
my i7 3770k cpu reaches ~78 when 100% usage is this normal or not
i am using stock fan.
 
Solution
Rashad_5,

The short answer to your question is no ... however, all computer temperatures increase and decrease with ambient temperature. Standard or normal is 22°C or 72°F.

Q: What is your ambient (room) temperature?

CPU-Z's "Stress CPU" test under the "Bench" tab is not the correct test to use for determining your processor / cooler thermal performance, nor is CineBench. Although CPU-Z's stress test (as well as numerous others) will indicate 100% CPU Utilization (busy), it's not equal to 100% workload, which means 100% Thermal Design Power (TDP) at stock settings. CPU-Z's stress test is instead only about 78% workload, which gives you a false sense of security, since it will also give you lower Core...

goldstone77

Distinguished
Aug 22, 2012
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Most likely with the stock fan that would be normal. This is a picture of my CPU overclocked to 4.6GHz.
rdlBywx.jpg

I'm using the Cooler Master Hyper 212 EVO with Noctua NT-H1 Thermal Compound. If you just want to run it with the stock cooler I would suggest using good H1 thermal compound! That will help your temps!

https://pcpartpicker.com/product/hmtCmG/cooler-master-cpu-cooler-rr212e20pkr2
with https://www.newegg.com/Product/Product.aspx?Item=N82E16835608008


Edit: if you decide to us the hyper 212 you will need to make sure you have clearance in your case for it to fit since it is a tall cooler.
 

CompuTronix

Intel Master
Moderator
Rashad_5,

The short answer to your question is no ... however, all computer temperatures increase and decrease with ambient temperature. Standard or normal is 22°C or 72°F.

Q: What is your ambient (room) temperature?

CPU-Z's "Stress CPU" test under the "Bench" tab is not the correct test to use for determining your processor / cooler thermal performance, nor is CineBench. Although CPU-Z's stress test (as well as numerous others) will indicate 100% CPU Utilization (busy), it's not equal to 100% workload, which means 100% Thermal Design Power (TDP) at stock settings. CPU-Z's stress test is instead only about 78% workload, which gives you a false sense of security, since it will also give you lower Core temperatures.

Intel tests their processors at 100% TDP, which is Power (Watts) that's dissipated as heat. Since your i7 3770K is 77 Watts TDP, in order to determine a valid thermal baseline, the goal is to use a test which will run your processor as close as possible to 100% TDP, or 77 Watts. Additionally, an ideal thermal test also needs to be a steady workload, rather than a fluctuating workload. Although CPU-Z's stress test is a steady workload, most other stress tests are not, some of which can spike as high as 120% workload.

The only other test which is both a 100% workload (TDP) and a steady workload is the Small FFT's test in Prime95 Version 26.6 - http://www.mersenneforum.org/showthread.php?t=15504

Download and run Small FFT's for just 10 minutes to determine your computer's valid CPU thermal baseline performance.

Do not use versions later than 26.6 on 2nd through 7th Generation i3, i5 or i7 CPU's, which all have AVX (Advanced Vector Extension) Instruction Sets. Later versions run AVX code on the CPU's Floating Point Unit (FPU) which causes unrealistic temperatures up to 20°C higher. The FPU test in the utility AIDA64 shows similar results.

Since you're running the stock cooler, expect your Core temperatures to be considerably higher at 100% TDP than Core temperatures using CPU-Z's 78% TDP stress test. Core voltage Power consumption may vary between motherboard manufacturers, BIOS versions and Auto / Default settings. If you want lower Core temperatures, then you'll need to replace Intel's stock cooler with a decent aftermarket cooler.

Download and run Core Temp to see your CPU's TDP and Power consumption - http://www.alcpu.com/CoreTemp

Here's the operating range for Core temperature:

Core temperatures above 85°C aren't recommended.

Core temperatures increase and decrease with Ambient temperature.

Highest Core temperatures occur during stress tests, rendering or transcoding, but are lower during less processor intensive workloads such as applications and gaming. Core temperatures vary greatly between games as CPU workloads differ. Idle temperatures below 25°C are generally due to Ambient temperatures below 22°C.

If you'd like to learn more about processor temperatures, then you might want to give this a read: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

CT :sol:
 
Solution