m8700k Intel Core i7-8700K testing with a ASUS ROG STRIX Z370-H GAMING (1301 BIOS) and EFI VGA on Ubuntu 16.04 via the Phoronix Test Suite. 51 down to 46 with -4 on AVX: Processor: Intel Core i7-8700K @ 5.10GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 weird one from 5.0 with manual overclocks: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 5ghzAsusDefaults: Processor: Intel Core i7-8700K @ 5.00GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 4.8maybegood but 4.5avx: Processor: Intel Core i7-8700K @ 4.80GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 4.7 on all ... high vcc+llc: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 hm ... mobo 5 reduced to 4.7: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 default maybe: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 49 eazy: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 49 eazy added -3 AVX plus DDR4 to 3200: Processor: Intel Core i7-8700K @ 4.90GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 47 adaptice + XMP: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 47 adaptive + XMP manual + BestCaseSVIP: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 47 adaptive + XMP manual + TypiicallSVIP+DisabledSVIP: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 47 adaptive + XMP autoproper ram settings + WorstCaseSVIP/Disabled: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 run2: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1101 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 default bios 1301: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1301 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 default bios 1301 2nd trial: Processor: Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads), Motherboard: ASUS ROG STRIX Z370-H GAMING (1301 BIOS), Chipset: Intel Device 3ec2, Memory: 16384MB, Disk: 4GB Relay UFD + 512GB Western Digital WDS512G1X0C-00ENX0, Graphics: EFI VGA, Audio: Realtek ALC1220, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.13.0-38-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, Screen Resolution: 1024x768 Timed Linux Kernel Compilation 4.13 Time To Compile Seconds < Lower Is Better 51 down to 46 with -4 on AVX ....................................... 68.57 |=== weird one from 5.0 with manual overclocks .......................... 69.86 |=== 5ghzAsusDefaults ................................................... 61.91 |=== 4.8maybegood but 4.5avx ............................................ 63.83 |=== 4.7 on all ... high vcc+llc ........................................ 61.71 |=== hm ... mobo 5 reduced to 4.7 ....................................... 64.09 |=== default maybe ...................................................... 68.78 |=== 49 eazy ............................................................ 62.34 |=== 49 eazy added -3 AVX plus DDR4 to 3200 ............................. 63.39 |=== 47 adaptice + XMP .................................................. 61.55 |=== 47 adaptive + XMP manual + TypiicallSVIP+DisabledSVIP .............. 61.51 |=== 47 adaptive + XMP autoproper ram settings + WorstCaseSVIP/Disabled . 61.44 |=== run2 ............................................................... 61.51 |=== default bios 1301 .................................................. 66.29 |=== default bios 1301 2nd trial ........................................ 66.92 |===