g Intel Core i7-8700K testing with a Gigabyte Z370 AORUS Gaming 7 (F6 BIOS) and inteldrmfb on Ubuntu 18.04 via the Phoronix Test Suite. governor performance: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 gov perf 2: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 pwersave: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 Intel Core i7-8700K: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 changes mount options natimee: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 47only: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 47only 2ndtime: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 49 avx down to 47: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 48 based on gigabyte overclock settings: Processor: Intel Core i7-8700K @ 4.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 48 mine: Processor: Intel Core i7-8700K @ 4.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 default settings: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 49 fixed ... does crash on AVX workload: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 49 with throttling on TDP if needed: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 49 w throttle on TDP governore switched to performan ce: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 49 smart: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: Gigabyte Z370 AORUS Gaming 7 (F6 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: inteldrmfb (1200MHz), Audio: Realtek ALC1220, Monitor: DELL U2412M, Network: Intel Connection OS: Ubuntu 18.04, Kernel: 4.15.0-20-generic (x86_64), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1920x1200 FLAC Audio Encoding 1.3.2 WAV To FLAC Seconds < Lower Is Better governor performance .................................... 7.47 |=============== gov perf 2 .............................................. 7.50 |=============== pwersave ................................................ 7.54 |=============== 49 with throttling on TDP if needed ..................... 7.63 |=============== 49 w throttle on TDP governore switched to performan ce . 7.69 |=============== Timed Linux Kernel Compilation 4.13 Time To Compile Seconds < Lower Is Better pwersave ................................................ 71.09 |============= 48 based on gigabyte overclock settings ................. 71.13 |============= governor performance .................................... 70.53 |============= gov perf 2 .............................................. 70.90 |============= pwersave ................................................ 71.37 |============= changes mount options natimee ........................... 70.95 |============= 47only .................................................. 72.82 |============= 47only 2ndtime .......................................... 72.83 |============= 49 avx down to 47 ....................................... 72.03 |============= 48 based on gigabyte overclock settings ................. 71.48 |============= 48 mine ................................................. 70.51 |============= default settings ........................................ 78.14 |============== 49 fixed ... does crash on AVX workload ................. 70.42 |============= 49 with throttling on TDP if needed ..................... 70.15 |============= 49 w throttle on TDP governore switched to performan ce . 69.50 |============ 49 smart ................................................ 70.40 |=============