uarchlevels Benchmaring various x86_64 microarcitecture levels O1_generic: Processor: Intel Core i3-7020U @ 2.30GHz (2 Cores / 4 Threads), Motherboard: HP 84CA (F.61 BIOS), Chipset: Intel Xeon E3-1200 v6/7th, Memory: 16GB, Disk: 1000GB Seagate ST1000LM035-1RK1 + 500GB HGST HTS545050A7, Graphics: Intel HD 620 3GB (1000MHz), Audio: Realtek ALC236, Network: Realtek RTL8111/8168/8411 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 20.04, Kernel: 5.8.0-44-generic (x86_64), Desktop: GNOME, Display Server: X Server 1.20.9, OpenGL: 4.6 Mesa 20.2.6, OpenCL: OpenCL 2.1, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1600x900 O3_generic: Processor: Intel Core i3-7020U @ 2.30GHz (2 Cores / 4 Threads), Motherboard: HP 84CA (F.61 BIOS), Chipset: Intel Xeon E3-1200 v6/7th, Memory: 16GB, Disk: 1000GB Seagate ST1000LM035-1RK1 + 500GB HGST HTS545050A7, Graphics: Intel HD 620 3GB (1000MHz), Audio: Realtek ALC236, Network: Realtek RTL8111/8168/8411 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 20.04, Kernel: 5.8.0-44-generic (x86_64), Desktop: GNOME, Display Server: X Server 1.20.9, OpenGL: 4.6 Mesa 20.2.6, OpenCL: OpenCL 2.1, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1600x900 O3_march_nehalem: Processor: Intel Core i3-7020U @ 2.30GHz (2 Cores / 4 Threads), Motherboard: HP 84CA (F.61 BIOS), Chipset: Intel Xeon E3-1200 v6/7th, Memory: 16GB, Disk: 1000GB Seagate ST1000LM035-1RK1 + 500GB HGST HTS545050A7, Graphics: Intel HD 620 3GB (1000MHz), Audio: Realtek ALC236, Network: Realtek RTL8111/8168/8411 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 20.04, Kernel: 5.8.0-44-generic (x86_64), Desktop: GNOME, Display Server: X Server 1.20.9, OpenGL: 4.6 Mesa 20.2.6, OpenCL: OpenCL 2.1, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1600x900 O3_march_haswell: Processor: Intel Core i3-7020U @ 2.30GHz (2 Cores / 4 Threads), Motherboard: HP 84CA (F.61 BIOS), Chipset: Intel Xeon E3-1200 v6/7th, Memory: 16GB, Disk: 1000GB Seagate ST1000LM035-1RK1 + 500GB HGST HTS545050A7, Graphics: Intel HD 620 3GB (1000MHz), Audio: Realtek ALC236, Network: Realtek RTL8111/8168/8411 + Realtek RTL8822BE 802.11a/b/g/n/ac OS: Ubuntu 20.04, Kernel: 5.8.0-44-generic (x86_64), Desktop: GNOME, Display Server: X Server 1.20.9, OpenGL: 4.6 Mesa 20.2.6, OpenCL: OpenCL 2.1, Compiler: GCC 9.3.0, File-System: ext4, Screen Resolution: 1600x900 default: Processor: AMD Ryzen 9 3900X 12-Core @ 6.08GHz (12 Cores / 24 Threads), Motherboard: MSI MEG X570 UNIFY (MS-7C35) v2.0 (A.60 BIOS), Chipset: AMD Starship/Matisse, Memory: 64GB, Disk: 2 x 1000GB Samsung SSD 970 EVO Plus 1TB + 32GB SDDR-409, Graphics: ASUS NVIDIA GeForce GTX 970 4GB, Audio: NVIDIA GM204 HD Audio, Monitor: Acer X34, Network: Realtek RTL8125 2.5GbE OS: ManjaroLinux 20.2.1, Kernel: 5.10.19-1-MANJARO (x86_64), Display Server: X Server 1.20.10, Display Driver: NVIDIA 460.56, OpenGL: 4.6.0, Compiler: GCC 10.2.0, File-System: zfs, Screen Resolution: 3440x1440 SciMark 2.0 Computational Test: Composite Mflops > Higher Is Better O1_generic ....... 927.06 |===================================== O3_generic ....... 1133.33 |============================================== O3_march_nehalem . 1133.41 |============================================== O3_march_haswell . 1268.60 |=================================================== default .......... 722.99 |============================= SciMark 2.0 Computational Test: Monte Carlo Mflops > Higher Is Better O1_generic ....... 450.59 |=============================================== O3_generic ....... 486.48 |=================================================== O3_march_nehalem . 486.17 |=================================================== O3_march_haswell . 499.80 |==================================================== default .......... 157.76 |================ SciMark 2.0 Computational Test: Fast Fourier Transform Mflops > Higher Is Better O1_generic ....... 289.48 |========================================== O3_generic ....... 297.83 |=========================================== O3_march_nehalem . 296.41 |=========================================== O3_march_haswell . 308.65 |============================================= default .......... 356.20 |==================================================== SciMark 2.0 Computational Test: Sparse Matrix Multiply Mflops > Higher Is Better O1_generic ....... 1430.11 |================================================ O3_generic ....... 1473.46 |================================================== O3_march_nehalem . 1472.93 |================================================== O3_march_haswell . 1513.98 |=================================================== default .......... 799.90 |=========================== SciMark 2.0 Computational Test: Dense LU Matrix Factorization Mflops > Higher Is Better O1_generic ....... 1805.39 |================================ O3_generic ....... 2546.58 |============================================= O3_march_nehalem . 2549.52 |============================================= O3_march_haswell . 2871.60 |=================================================== default .......... 991.05 |================== SciMark 2.0 Computational Test: Jacobi Successive Over-Relaxation Mflops > Higher Is Better O1_generic ....... 659.73 |========================== O3_generic ....... 862.30 |================================== O3_march_nehalem . 862.01 |================================== O3_march_haswell . 1148.98 |============================================= default .......... 1310.01 |=================================================== John The Ripper 1.9.0-jumbo-1 Test: Blowfish Real C/S > Higher Is Better O1_generic ....... 2050 |====== O3_generic ....... 2179 |======= O3_march_nehalem . 2167 |====== O3_march_haswell . 2180 |======= default .......... 17754 |===================================================== John The Ripper 1.9.0-jumbo-1 Test: MD5 Real C/S > Higher Is Better O1_generic ....... 56631 |=== O3_generic ....... 57288 |=== O3_march_nehalem . 57299 |=== O3_march_haswell . 128507 |======= default .......... 972034 |==================================================== GraphicsMagick 1.3.33 Operation: Swirl Iterations Per Minute > Higher Is Better O1_generic ....... 49 |==== O3_generic ....... 52 |==== O3_march_nehalem . 54 |==== O3_march_haswell . 57 |==== default .......... 724 |======================================================= GraphicsMagick 1.3.33 Operation: Resizing Iterations Per Minute > Higher Is Better O1_generic ....... 96 |==== O3_generic ....... 126 |===== O3_march_nehalem . 126 |===== O3_march_haswell . 150 |====== default .......... 1269 |====================================================== GraphicsMagick 1.3.33 Operation: HWB Color Space Iterations Per Minute > Higher Is Better O1_generic ....... 218 |=========== O3_generic ....... 234 |=========== O3_march_nehalem . 236 |============ O3_march_haswell . 239 |============ default .......... 1099 |====================================================== Coremark 1.0 CoreMark Size 666 - Iterations Per Second Iterations/Sec > Higher Is Better O1_generic ....... 40334.10 |=== O3_generic ....... 50519.83 |==== O3_march_nehalem . 49839.90 |==== O3_march_haswell . 49174.76 |==== default .......... 581063.66 |================================================= Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better O1_generic ....... 780.04 |======== O3_generic ....... 1965.66 |=================== O3_march_nehalem . 1964.83 |=================== O3_march_haswell . 2218.25 |====================== default .......... 5170.34 |=================================================== C-Ray 1.1 Total Time - 4K, 16 Rays Per Pixel Seconds < Lower Is Better O1_generic ....... 1180.11 |=================================================== O3_generic ....... 560.26 |======================== O3_march_nehalem . 560.00 |======================== O3_march_haswell . 412.02 |================== default .......... 42.78 |== FLAC Audio Encoding 1.3.2 WAV To FLAC Seconds < Lower Is Better O1_generic ....... 21.276 |==================================================== O3_generic ....... 20.736 |=================================================== O3_march_nehalem . 19.209 |=============================================== O3_march_haswell . 19.150 |=============================================== default .......... 7.611 |===================