Intel Ivy Bridge Overclocking Running the Intel Core i7 3770K Ivy Bridge processor with an Intel Z77 motherboard and HD 4000 graphics in a few different combinations. The i7-3770K on Ubuntu Linux was tested at its stock settings (3.5GHz, HT, Turbo Boost, etc) then with Hyper Threading disabled, Turbo Boot disabled, and then those features restored and the CPU then overclocked to 4.2GHz and 4.8GHz. Running Ubuntu 12.04 with the Linux 3.4 kernel for Ivy Bridge. i7-3770K - 3.50GHz: Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Ivy Bridge, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Realtek RTL8111/8168B OS: Ubuntu 12.04, Kernel: 3.4.0-999-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: intel 2.19.0, OpenGL: 2.1 Mesa 8.1-devel (git-d5a10db), Compiler: GCC 4.6 + Clang 3.0-6ubuntu3 + LLVM 3.0 + Intel IOC SDK 2012 v1.0.2, File-System: ext4, Screen Resolution: 1920x1080 i7-3770K - No Turbo Boost: Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Ivy Bridge, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Realtek RTL8111/8168B OS: Ubuntu 12.04, Kernel: 3.4.0-999-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: intel 2.19.0, OpenGL: 2.1 Mesa 8.1-devel (git-d5a10db), Compiler: GCC 4.6 + Clang 3.0-6ubuntu3 + LLVM 3.0 + Intel IOC SDK 2012 v1.0.2, File-System: ext4, Screen Resolution: 1920x1080 i7-3770K - No HT: Processor: Intel Core i7-3770K @ 3.50GHz (4 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Ivy Bridge, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Realtek RTL8111/8168B OS: Ubuntu 12.04, Kernel: 3.4.0-999-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: intel 2.19.0, OpenGL: 2.1 Mesa 8.1-devel (git-d5a10db), Compiler: GCC 4.6 + Clang 3.0-6ubuntu3 + LLVM 3.0 + Intel IOC SDK 2012 v1.0.2, File-System: ext4, Screen Resolution: 1920x1080 i7-3770K - 4.20GHz: Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Ivy Bridge, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Realtek RTL8111/8168B OS: Ubuntu 12.04, Kernel: 3.4.0-999-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: intel 2.19.0, OpenGL: 2.1 Mesa 8.1-devel (git-d5a10db), Compiler: GCC 4.6 + Clang 3.0-6ubuntu3 + LLVM 3.0 + Intel IOC SDK 2012 v1.0.2, File-System: ext4, Screen Resolution: 1920x1080 i7-3770K - 4.80GHz: Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Ivy Bridge, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Realtek RTL8111/8168B OS: Ubuntu 12.04, Kernel: 3.4.0-999-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: intel 2.19.0, OpenGL: 2.1 Mesa 8.1-devel (git-d5a10db), Compiler: GCC 4.6 + Clang 3.0-6ubuntu3 + LLVM 3.0 + Intel IOC SDK 2012 v1.0.2, File-System: ext4, Screen Resolution: 1920x1080 i7-2600k: Processor: Intel Core i7-2600K @ 3.40GHz (8 Cores), Motherboard: ASUS P8H67-M EVO, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 2 x 4096 MB DDR3-1333MHz, Disk: 1000GB SAMSUNG HD103SJ + 250GB Seagate ST3250823SCE + 320GB Seagate ST3320418AS + 500GB M2 Portable, Graphics: Intel Gen6, Audio: Realtek ALC892, Monitor: S23B550, Network: Realtek RTL8111/8168 OS: Ubuntu 13.04, Kernel: 3.8.0-19-generic (x86_64), Display Driver: intel 2.21.6, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1920x1080 Nexuiz 2.5.2 Resolution: 1920 x 1080 - HDR: Yes - Sound: On Frames Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 40.91 |=========================================== i7-3770K - No Turbo Boost . 40.95 |=========================================== i7-3770K - No HT .......... 40.83 |=========================================== i7-3770K - 4.20GHz ........ 41.56 |============================================ i7-3770K - 4.80GHz ........ 41.73 |============================================ Xonotic 0.6 Resolution: 1920 x 1080 - Effects Quality: High Frames Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 51.55 |============================================ i7-3770K - No Turbo Boost . 51.60 |============================================ i7-3770K - No HT .......... 51.56 |============================================ i7-3770K - 4.20GHz ........ 51.90 |============================================ i7-3770K - 4.80GHz ........ 51.92 |============================================ NAS Parallel Benchmarks 3.3 Test / Class: IS.C Total Mop/s > Higher Is Better i7-3770K - 3.50GHz ........ 203.95 |=================================== i7-3770K - No Turbo Boost . 183.70 |================================ i7-3770K - No HT .......... 202.61 |=================================== i7-3770K - 4.20GHz ........ 219.06 |====================================== i7-3770K - 4.80GHz ........ 247.31 |=========================================== i7-2600k .................. 185.64 |================================ NAS Parallel Benchmarks 3.3 Test / Class: LU.A Total Mop/s > Higher Is Better i7-3770K - 3.50GHz ........ 13608.74 |===================================== i7-3770K - No Turbo Boost . 12613.87 |=================================== i7-3770K - No HT .......... 11469.11 |================================ i7-3770K - 4.20GHz ........ 14924.47 |========================================= i7-3770K - 4.80GHz ........ 12741.25 |=================================== i7-2600k .................. 12366.98 |================================== NAS Parallel Benchmarks 3.3 Test / Class: MG.B Total Mop/s > Higher Is Better i7-3770K - 3.50GHz ........ 6053.08 |====================================== i7-3770K - No Turbo Boost . 6021.44 |====================================== i7-3770K - No HT .......... 6668.67 |========================================== i7-3770K - 4.20GHz ........ 6118.30 |======================================= i7-3770K - 4.80GHz ........ 6050.49 |====================================== i7-2600k .................. 5404.92 |================================== NAS Parallel Benchmarks 3.3 Test / Class: SP.A Total Mop/s > Higher Is Better i7-3770K - 3.50GHz ........ 6127.10 |======================================== i7-3770K - No Turbo Boost . 5774.50 |===================================== i7-3770K - No HT .......... 6468.39 |========================================== i7-3770K - 4.20GHz ........ 6198.85 |======================================== i7-3770K - 4.80GHz ........ 6139.88 |======================================== i7-2600k .................. 5480.16 |==================================== NAS Parallel Benchmarks 3.3 Test / Class: UA.A Total Mop/s > Higher Is Better i7-3770K - 3.50GHz ........ 48.47 |========================================= i7-3770K - No Turbo Boost . 46.86 |======================================== i7-3770K - No HT .......... 41.86 |==================================== i7-3770K - 4.20GHz ........ 51.54 |============================================ i7-3770K - 4.80GHz ........ 46.82 |======================================== i7-2600k .................. 40.03 |================================== FFTE 5.0 Test: N=64, 1D Complex FFT Routine MFLOPS > Higher Is Better i7-3770K - 3.50GHz ........ 5628.22 |===================================== i7-3770K - No Turbo Boost . 5070.84 |================================= i7-3770K - No HT .......... 5648.26 |===================================== i7-3770K - 4.20GHz ........ 6087.79 |======================================== i7-3770K - 4.80GHz ........ 6430.63 |========================================== i7-2600k .................. 5597.59 |===================================== TTSIOD 3D Renderer 2.2w Phong Rendering With Soft-Shadow Mapping FPS > Higher Is Better i7-3770K - 3.50GHz ........ 137.29 |======================================== i7-3770K - No Turbo Boost . 135.94 |======================================== i7-3770K - No HT .......... 117.53 |================================== i7-3770K - 4.20GHz ........ 147.84 |=========================================== i7-3770K - 4.80GHz ........ 136.90 |======================================== VP8 libvpx Encoding 0.9.7-p1 vpxenc Frames Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 27.38 |===================================== i7-3770K - No Turbo Boost . 25.57 |================================== i7-3770K - No HT .......... 32.68 |============================================ i7-3770K - 4.20GHz ........ 28.77 |======================================= i7-2600k .................. 24.50 |================================= x264 2011-12-06 H.264 Video Encoding Frames Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 149.86 |====================================== i7-3770K - No Turbo Boost . 142.50 |===================================== i7-3770K - No HT .......... 117.25 |============================== i7-3770K - 4.20GHz ........ 167.46 |=========================================== i7-2600k .................. 132.78 |================================== 7-Zip Compression 9.20.1 Compress Speed Test MIPS > Higher Is Better i7-3770K - 3.50GHz ........ 21317 |========================================= i7-3770K - No Turbo Boost . 20442 |======================================= i7-3770K - No HT .......... 15451 |============================= i7-3770K - 4.20GHz ........ 23080 |============================================ i7-2600k .................. 17883 |================================== C-Ray 1.1 Total Time Seconds < Lower Is Better i7-3770K - 3.50GHz ........ 44.89 |========================================== i7-3770K - No Turbo Boost . 47.56 |============================================ i7-3770K - No HT .......... 41.03 |====================================== i7-3770K - 4.20GHz ........ 42.40 |======================================= i7-2600k .................. 36.91 |================================== Parallel BZIP2 Compression 1.0.5 256MB File Compression Seconds < Lower Is Better i7-3770K - 3.50GHz ........ 7.76 |====================================== i7-3770K - No Turbo Boost . 8.23 |======================================== i7-3770K - No HT .......... 8.85 |=========================================== i7-3770K - 4.20GHz ........ 7.04 |================================== i7-2600k .................. 9.30 |============================================= Smallpt 1.0 Global Illumination Renderer; 100 Samples Seconds < Lower Is Better i7-3770K - 3.50GHz ........ 81 |=============================== i7-3770K - No Turbo Boost . 85 |================================= i7-3770K - No HT .......... 119 |============================================== i7-3770K - 4.20GHz ........ 79 |=============================== i7-2600k .................. 107 |========================================= OpenSSL 1.0.0e RSA 4096-bit Performance Signs Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 100.85 |======================================== i7-3770K - No Turbo Boost . 90.15 |==================================== i7-3770K - No HT .......... 100.50 |======================================== i7-3770K - 4.20GHz ........ 108.73 |=========================================== i7-2600k .................. 89.90 |==================================== PostgreSQL pgbench 8.4.11 TPC-B Transactions Per Second TPS > Higher Is Better i7-3770K - 3.50GHz ........ 3075.08 |========================================= i7-3770K - No Turbo Boost . 3081.26 |========================================= i7-3770K - No HT .......... 2686.34 |==================================== i7-3770K - 4.20GHz ........ 3154.56 |========================================== Apache Benchmark 2.2.21 Static Web Page Serving Requests Per Second > Higher Is Better i7-3770K - 3.50GHz ........ 33403.47 |=================================== i7-3770K - No Turbo Boost . 31669.09 |================================= i7-3770K - No HT .......... 37005.88 |======================================= i7-3770K - 4.20GHz ........ 39147.01 |========================================= i7-2600k .................. 28505.32 |==============================