32-bit vs 64-bit - Ubuntu 12.04 LTS Ubuntu 12.04 x86_64 64-bit vs. 32-bit performance on Intel Core i7 notebook. 32-bit Ubuntu Linux benchmarking was with the 32-bit and 32-bit PAE (Physical Address Extensions) kernels. Testing of 8 February Precise Pangolin development snapshot, all other software versions/configurations remained the same besides swapping the kernels. Testing for a future article on Phoronix.com by Michael Larabel. Unity 12.04 32-bit: Processor: Intel Core i7 720Q @ 1.60GHz (8 Cores), Motherboard: LENOVO 4318CTO, Chipset: Intel Core DMI, Memory: 3584MB, Disk: 160GB INTEL SSDSA2M160, Graphics: NVIDIA Quadro FX 880M 1024MB (550/790MHz), Audio: Conexant CX20585, Network: Intel 82577LM Gigabit Connection + Intel Centrino Ultimate-N 6300 OS: Ubuntu 12.04, Kernel: 3.2.0-14-generic (i686), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: nouveau 0.0.16, OpenGL: 2.1 Mesa 8.0-rc2 Gallium 0.4, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Ubuntu 12.04 32-bit PAE: Processor: Intel Core i7 720Q @ 1.60GHz (8 Cores), Motherboard: LENOVO 4318CTO, Chipset: Intel Core DMI, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: NVIDIA Quadro FX 880M 1024MB (550/790MHz), Audio: Conexant CX20585, Network: Intel 82577LM Gigabit Connection + Intel Centrino Ultimate-N 6300 OS: Ubuntu 12.04, Kernel: 3.2.0-14-generic-pae (i686), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: nouveau 0.0.16, OpenGL: 2.1 Mesa 8.0-rc2 Gallium 0.4, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Ubuntu 12.04 64-bit: Processor: Intel Core i7 720Q @ 1.60GHz (8 Cores), Motherboard: LENOVO 4318CTO, Chipset: Intel Core DMI, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: NVIDIA Quadro FX 880M 1024MB (550/790MHz), Audio: Conexant CX20585, Network: Intel 82577LM Gigabit Connection + Intel Centrino Ultimate-N 6300 OS: Ubuntu 12.04, Kernel: 3.2.0-14-generic (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: nouveau 0.0.16, OpenGL: 2.1 Mesa 8.0-rc2 Gallium 0.4, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 OpenArena 0.8.5 Resolution: 1600 x 900 Frames Per Second > Higher Is Better Unity 12.04 32-bit ...... 95.30 |============================================== Ubuntu 12.04 32-bit PAE . 94.77 |============================================== Ubuntu 12.04 64-bit ..... 94.77 |============================================== C-Ray 1.1 Total Time Seconds < Lower Is Better Unity 12.04 32-bit ...... 173.89 |============================================= Ubuntu 12.04 32-bit PAE . 173.76 |============================================= Ubuntu 12.04 64-bit ..... 107.07 |============================ Smallpt 1.0 Global Illumination Renderer; 100 Samples Seconds < Lower Is Better Unity 12.04 32-bit ...... 298 |================================================ Ubuntu 12.04 32-bit PAE . 298 |================================================ Ubuntu 12.04 64-bit ..... 246 |======================================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better Unity 12.04 32-bit ...... 25.91 |============================================== Ubuntu 12.04 32-bit PAE . 25.92 |============================================== Ubuntu 12.04 64-bit ..... 22.92 |========================================= x264 2011-12-06 H.264 Video Encoding Frames Per Second > Higher Is Better Unity 12.04 32-bit ...... 51.16 |======================================== Ubuntu 12.04 32-bit PAE . 50.91 |======================================== Ubuntu 12.04 64-bit ..... 58.62 |============================================== VP8 libvpx Encoding 0.9.7-p1 vpxenc Frames Per Second > Higher Is Better Unity 12.04 32-bit ...... 9.11 |=========================================== Ubuntu 12.04 32-bit PAE . 8.81 |========================================== Ubuntu 12.04 64-bit ..... 9.89 |=============================================== 7-Zip Compression 9.20.1 Compress Speed Test MIPS > Higher Is Better Unity 12.04 32-bit ...... 7990 |=========================================== Ubuntu 12.04 32-bit PAE . 7892 |========================================== Ubuntu 12.04 64-bit ..... 8792 |=============================================== Apache Benchmark 2.2.21 Static Web Page Serving Requests Per Second > Higher Is Better Unity 12.04 32-bit ...... 10717.12 |================================== Ubuntu 12.04 32-bit PAE . 13652.93 |=========================================== Ubuntu 12.04 64-bit ..... 13532.92 |=========================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Unity 12.04 32-bit ...... 587 |========= Ubuntu 12.04 32-bit PAE . 587 |========= Ubuntu 12.04 64-bit ..... 3125 |=============================================== Timed MAFFT Alignment 6.864 Multiple Sequence Alignment Seconds < Lower Is Better Unity 12.04 32-bit ...... 38.69 |============================================== Ubuntu 12.04 32-bit PAE . 38.75 |============================================== Ubuntu 12.04 64-bit ..... 30.99 |===================================== Timed HMMer Search 2.3.2 Pfam Database Search Seconds < Lower Is Better Unity 12.04 32-bit ...... 35.63 |============================================== Ubuntu 12.04 32-bit PAE . 35.74 |============================================== Ubuntu 12.04 64-bit ..... 27.83 |==================================== Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better Unity 12.04 32-bit ...... 852.92 |=================================== Ubuntu 12.04 32-bit PAE . 851.90 |=================================== Ubuntu 12.04 64-bit ..... 1067.03 |============================================ Timed MrBayes Analysis 3.1.2 Primate Phylogeny Analysis Seconds < Lower Is Better Unity 12.04 32-bit ...... 37.07 |============================================== Ubuntu 12.04 32-bit PAE . 37.00 |============================================== Ubuntu 12.04 64-bit ..... 34.94 |=========================================== OpenSSL 1.0.0e RSA 4096-bit Performance Signs Per Second > Higher Is Better Unity 12.04 32-bit ...... 19.05 |===================== Ubuntu 12.04 32-bit PAE . 19.08 |===================== Ubuntu 12.04 64-bit ..... 42.00 |==============================================