result -O2 Mitigations enables i7 4770 with Spectre Meltdown Mitigation: Processor: Intel Core i7-4770 @ 3.90GHz (4 Cores / 8 Threads), Motherboard: HP 1905 (L51 v01.63 BIOS), Chipset: Intel 4th Gen Core DRAM, Memory: 16GB, Disk: 240GB SanDisk SDSSDA24 + 480GB Patriot Burst El + 500GB Western Digital WD5000HHTZ-6, Graphics: AMD Radeon RX 5600 XT 6GB, Audio: Intel Xeon E3-1200 v3/4th, Monitor: P225HQL + W2243, Network: Intel I217-LM OS: Arch rolling, Kernel: 6.11.5-arch1-1 (x86_64), Desktop: GNOME Shell 47.1, Display Server: X Server 1.21.1.13 + Wayland, OpenGL: 4.6 Mesa 24.2.5-arch1.1 (LLVM 18.1.8 DRM 3.59), Compiler: GCC 14.2.1 20240910 + Clang 18.1.8 + LLVM 18.1.8, File-System: btrfs, Screen Resolution: 3840x1080 i7 4770 with Spectre Mitigation: Processor: Intel Core i7-4770 @ 3.90GHz (4 Cores / 8 Threads), Motherboard: HP 1905 (L51 v01.63 BIOS), Chipset: Intel 4th Gen Core DRAM, Memory: 16GB, Disk: 240GB SanDisk SDSSDA24 + 480GB Patriot Burst El + 500GB Western Digital WD5000HHTZ-6, Graphics: AMD Radeon RX 5600 XT 6GB, Audio: Realtek ALC221, Monitor: P225HQL + W2243, Network: Intel I217-LM OS: Arch rolling, Kernel: 6.11.5-arch1-1 (x86_64), Desktop: GNOME Shell 47.1, Display Server: X Server 1.21.1.13 + Wayland, OpenGL: 4.6 Mesa 24.2.5-arch1.1 (LLVM 18.1.8 DRM 3.59), Compiler: GCC 14.2.1 20240910 + Clang 18.1.8 + LLVM 18.1.8, File-System: btrfs, Screen Resolution: 3840x1080 Xonotic / Kernel -O3 and disabled Spectre Meltdown Mitigations: Processor: Intel Core i7-4770 @ 3.90GHz (4 Cores / 8 Threads), Motherboard: HP 1905 (L51 v01.63 BIOS), Chipset: Intel 4th Gen Core DRAM, Memory: 16GB, Disk: 240GB SanDisk SDSSDA24 + 480GB Patriot Burst El + 500GB Western Digital WD5000HHTZ-6, Graphics: AMD Radeon RX 5600 XT 6GB, Audio: Realtek ALC221, Monitor: P225HQL + W2243, Network: Intel I217-LM OS: Arch rolling, Kernel: 6.11.5-arch1-1 (x86_64), Desktop: GNOME Shell 47.1, Display Server: X Server 1.21.1.13 + Wayland, OpenGL: 4.6 Mesa 24.2.5-arch1.1 (LLVM 18.1.8 DRM 3.59), Compiler: GCC 14.2.1 20240910 + Clang 18.1.8 + LLVM 18.1.8, File-System: btrfs, Screen Resolution: 3840x1080 Intel Xeon E3-1200 v3: Processor: Intel Core i7-4770 @ 3.90GHz (4 Cores / 8 Threads), Motherboard: HP 1905 (L51 v01.63 BIOS), Chipset: Intel 4th Gen Core DRAM, Memory: 16GB, Disk: 240GB SanDisk SDSSDA24 + 480GB Patriot Burst El + 500GB Western Digital WD5000HHTZ-6, Graphics: AMD Radeon RX 5600 XT 6GB, Audio: Intel Xeon E3-1200 v3/4th, Monitor: P225HQL + W2243, Network: Intel I217-LM OS: Arch rolling, Kernel: 6.6.58-1-lts (x86_64), Desktop: GNOME Shell 47.1, Display Server: X Server 1.21.1.13 + Wayland, OpenGL: 4.6 Mesa 24.2.5-arch1.1 (LLVM 18.1.8 DRM 3.54), Compiler: GCC 14.2.1 20240910 + Clang 18.1.8 + LLVM 18.1.8, File-System: btrfs, Screen Resolution: 3840x1080 SciMark 2.0 Computational Test: Fast Fourier Transform Mflops > Higher Is Better i7 4770 with Spectre Meltdown Mitigation . 153.20 |============================ i7 4770 with Spectre Mitigation .......... 153.77 |============================ IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 4096 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 791494 |=============================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 2048 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 904226 |=============================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 1024 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1005737 |============================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 512 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1087849 |============================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 256 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1084751 |============================================== IPC_benchmark Type: Unnamed Unix Domain Socket - Message Bytes: 128 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1124719 |============================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 1024 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1674213 |============================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 512 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1747185 |============================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 256 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1856066 |============================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 128 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1834972 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 2048 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1476301 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 1024 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1722010 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 512 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1813723 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 256 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1859502 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 128 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1944546 |============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 4096 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 853713 |=============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 2048 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1137803 |============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 1024 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1378334 |============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 512 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1496158 |============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 256 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1589282 |============================================== IPC_benchmark Type: TCP Socket - Message Bytes: 128 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1626645 |============================================== Xonotic 0.8.6 Resolution: 1920 x 1080 - Effects Quality: Ultimate Frames Per Second > Higher Is Better Xonotic / Kernel -O3 and disabled Spectre Meltdown Mitigations . 259.44 |====== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 4096 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1237587 |============================================== IPC_benchmark Type: FIFO Named Pipe - Message Bytes: 2048 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1510783 |============================================== IPC_benchmark Type: Unnamed Pipe - Message Bytes: 4096 Messages Per Second > Higher Is Better Intel Xeon E3-1200 v3 . 1273668 |==============================================