Version 28 and beyond - this version makes use of the FMA instruction set (supported by Haswell CPU's and beyond), which is an extension of the Streaming SIMD Extensions more here:
#How to enable turbo boost i7 4790k software
Max" field.įirst a very quick note on Prime95, as the way the software operates has changed in the last 3 major versions, i.e.
#How to enable turbo boost i7 4790k free
This value is usually not published by Intel - a free software tool such as Core Temp 1.0 RC6 will display it under the "Tj. One can think of this temperature as sort of an upper bound, however it is obviously not recommended to run the CPU consistently close this temperature. This is the junction temperature in a semiconductor, but in practical terms, this is the temperature at which point the processor starts to thermal throttle itself back in order to avoid damage. If the workloads you plan to run consistently push your CPU beyond this point, you'll need third party cooling to keep the processor within safe temperature limits (more on this below): to effectively dissipate around 90 Watts of power. It is very important to note a couple things here:ġ) This is not the maximum amount of power the CPU can dissipate rather an Intel chosen value based on their definition what a complex workload isĢ) The Intel supplied retail HSF is likely built around this value, i.e. Refer to Datasheet for thermal solution requirements." "Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. The values below are for the CPU I used in testing (please see above for details): NOTE: These parameters can easily vary for other CPU families. Intel Extreme Tuning Utility (XTU) - Intel supplied CPU tuning utility used both CPU and memory testsīefore I go into detail on tests and results here are a couple important CPU parameters for the Haswell product family that will be important to know for testing and measuring performance: Intel Burn Test 2.54 - simulates a math heavy (Linpack) workload on CPU Prime95 - a good stress tester for CPU's FPU video encoding), but the following well known software packages were once I used for my testing: Many use games and or CPU intensive programs (e.g. When building a new machine or testing out an overclock, people use a variety of load intensive software to test out stability. NOTE: The observations pertain to my experience with the Intel Haswell i7 Quad Core CPU and Z97 chipset, but should also be able to be used a guide in general. Since it has been over a decade since my last build, I ran into some interesting observations that I thought I would share with everyone below: in particular the CPU cooler) and 2) hardware was defect free (e.g. I spent a decent amount of time yesterday performing some stress/load tests on my system to see whether 1) everything was properly installed (i.e.