SPEC CPU(R)2026 Integer Speed Result Apple MacBook Pro (16-inch, M5 Pro) Test Sponsor: SPEC CPU Supporting Contributor jhenning CPU2026 License: 7 Test date: Apr-2026 Test sponsor: SPEC CPU Supporting Contributor jhenning Hardware availability: Mar-2026 Tested by: SPEC CPU Supporting Contributor jhenning Software availability: Apr-2026 Base Base Base Peak Peak Peak Benchmarks Threads Run Time Ratio Threads Run Time Ratio ---------------- ------- --------- --------- ------- --------- --------- 801.xz_s 18 369 1.60 S 801.xz_s 18 366 1.61 * 801.xz_s 18 366 1.62 S 807.ntest_s 18 455 2.50 S 807.ntest_s 18 453 2.52 * 807.ntest_s 18 451 2.53 S 817.flac_s 18 243 7.14 S 817.flac_s 18 239 7.28 S 817.flac_s 18 239 7.27 * 821.gcc_s 18 542 3.82 S 821.gcc_s 18 541 3.82 * 821.gcc_s 18 541 3.82 S 823.llvm_s 18 393 3.59 S 823.llvm_s 18 393 3.59 S 823.llvm_s 18 393 3.59 * 827.cppcheck_s 18 374 2.99 S 827.cppcheck_s 18 365 3.07 S 827.cppcheck_s 18 369 3.04 * 829.abc_s 18 218 3.82 S 829.abc_s 18 219 3.80 * 829.abc_s 18 219 3.79 S 834.vpr_s 18 150 6.36 S 834.vpr_s 18 151 6.34 S 834.vpr_s 18 150 6.34 * 835.gem5_s 18 121 9.38 S 835.gem5_s 18 123 9.28 S 835.gem5_s 18 122 9.36 * 838.diamond_s 18 399 2.51 * 838.diamond_s 18 399 2.51 S 838.diamond_s 18 398 2.51 S 846.minizinc_s 18 175 3.83 S 846.minizinc_s 18 176 3.81 S 846.minizinc_s 18 175 3.82 * 853.ns3_s 18 120 9.61 * 853.ns3_s 18 122 9.45 S 853.ns3_s 18 119 9.67 S 854.graph500_s 18 327 1.87 S 854.graph500_s 18 327 1.87 * 854.graph500_s 18 336 1.82 S ================================================================================== 801.xz_s 18 366 1.61 * 807.ntest_s 18 453 2.52 * 817.flac_s 18 239 7.27 * 821.gcc_s 18 541 3.82 * 823.llvm_s 18 393 3.59 * 827.cppcheck_s 18 369 3.04 * 829.abc_s 18 219 3.80 * 834.vpr_s 18 150 6.34 * 835.gem5_s 18 122 9.36 * 838.diamond_s 18 399 2.51 * 846.minizinc_s 18 175 3.82 * 853.ns3_s 18 120 9.61 * 854.graph500_s 18 327 1.87 * SPECspeed(R)2026_int_base 3.90 SPECspeed(R)2026_int_peak Not Run HARDWARE -------- CPU Name: Apple M5 Pro Max MHz: 4600 (approximate; see notes) Nominal: 4600 (approximate; see notes) Enabled: 18 (6 Super and 12 Performance) cores, 1 chip Orderable: 1 chip Cache L1: 192 KB I + 128 KB D on chip per core (Super); 128 KB I + 64 KB D on chip per core (Performance) L2: 32 MB I+D on chip per chip, (16 MB per 6 Super cores, 8 MB per 6 Performance cores) L3: None disclosed Other: None disclosed Memory: 64.0 GB Storage: 4 TB APPLE SSD AP4096Z Cooling: Air Other: None SOFTWARE -------- OS: macOS 26.4.1 (25E253) Compiler: C/C++: Version 22.1.3 of LLVM; Fortran: Version 22.1.3 of Homebrew flang Compiler Category: Community Firmware: Version 18000.101.7 released Apr-2026 File System: apfs System State: Default Base Pointers: 64-bit Peak Pointers: Not Applicable Other: See notes Power Management: Default Compiler Notes -------------- NOTE - MODERATE COMPILER TUNING The results on this page intentionally use only moderate compiler tuning. This page differs from many other SPEC CPU results which are published to demonstrate the best performance that can be achieved by a system. Such tests often use compilers that are optimized for specific chip vendors and use advanced tuning options. Moderate optimization may be of interest to users who prefer a simple build process, or who do not know whether their application works correctly with advanced tuning options. Specifically, these tests: - Use an open source, community-supported compiler, rather than a vendor-specific compiler. - Specify only one optimization option, namely -O3. - Avoid options that disregard strict standards compliance, such as -Ofast, -ffinite-math-only, or -funsafe-math-optimizations. - Avoid options such as -march=native or -mcpu=native. Without those, the code generator cannot assume that the program will run only on systems that use the same chip as the current system. There are many other kinds of testing can be done with SPEC CPU, such as: - Performance modeling prior to CPU chip development. - Hardware validation. - Compiler regression testing (both correctness and performance). - Academic and industrial research into new optimizations for CPUs, memory systems, and compilers. Environment Variables Notes --------------------------- Environment variables set by runcpu before the start of the run: OMP_STACKSIZE = "120M" General Notes ------------- Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown) is mitigated in the system as tested and documented. The above 3 statements are based on https://support.apple.com/en-us/101886 Other software includes: Xcode 26.4.1.0.1775747724, installed via xcode-select --install libomp 22.1.3, installed via brew install libomp Platform Notes -------------- Sysinfo program /Volumes/ScratchVolume/spec/cpu2026/1.0.0/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on i4gots-MacBook-Pro Wed Apr 22 05:23:15 2026 SUT (System Under Test) info as seen by some common utilities. uname -srvm Darwin 25.4.0 Darwin Kernel Version 25.4.0: Thu Mar 19 19:33:50 PDT 2026; root:xnu-12377.101.15~1/RELEASE_ARM64_T6050 arm64 w 5:23 up 3 mins, 3 users, load averages: 6.01 5.55 2.55 USER TTY FROM LOGIN@ IDLE WHAT i4got console - 5:20 2 - i4got s000 - 5:21 - -bash i4got s001 - 5:23 - -bash Username From environment variable $USER: i4got ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 256 pipe size (512 bytes, -p) 1 stack size (kbytes, -s) 65000 cpu time (seconds, -t) unlimited max user processes (-u) 10666 virtual memory (kbytes, -v) unlimited sysinfo process ancestry /sbin/launchd /System/Applications/Utilities/Terminal.app/Contents/MacOS/Terminal login -pf i4got -bash /bin/bash ./run.6.sh runcpu -c clang5 -n 3 --reportable --nobuild intspeed runcpu --configfile clang5 --iterations 3 --reportable --nobuild --nopower --runmode speed --tune base --size refspeed intspeed --nopreenv --note-preenv --logfile $GOtmp/CPU2026.158/templogs/preenv.intspeed.158.0.log --lognum 158.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /Volumes/ScratchVolume/spec/cpu2026/1.0.0 $GO = /Volumes/ScratchVolume/spec/cpu2026/out/1.0.0/ Hardware: Hardware Overview: Model Name: MacBook Pro Model Identifier: Mac17,8 Model Number: Z1N0001A3LL/A Chip: Apple M5 Pro Total Number of Cores: 18 (6 Super and 12 Performance) Memory: 64 GB System Firmware Version: 18000.101.7 OS Loader Version: 18000.101.7 Software: System Software Overview: System Version: macOS 26.4.1 (25E253) Kernel Version: Darwin 25.4.0 Boot Volume: Macintosh HD Boot Mode: Normal Computer Name: i4got's MacBook Pro User Name: i4got (i4got) Secure Virtual Memory: Enabled System Integrity Protection: Enabled Time since boot: 3 minutes, 4 seconds Memory: Memory: 64 GB Type: LPDDR5 Manufacturer: Micron Developer: Developer Tools: Version: 26.4.1 (17E202) Location: /Applications/Xcode.app Applications: Xcode: 26.4.1 (24909.0.3) Instruments: 26.4.1 (64575.156) SDKs: DriverKit: 25.4: iOS: 26.4: (23E252) iOS Simulator: 26.4: (23E252) macOS: 26.4: (25E251) tvOS: 26.4: (23L236) tvOS Simulator: 26.4: (23L236) visionOS: 26.4: (23O248) visionOS Simulator: 26.4: (23O248) watchOS: 26.4: (23T238) watchOS Simulator: 26.4: (23T238) From sysctl: machdep.cpu.core_count: 18 machdep.cpu.thread_count: 18 machdep.cpu.brand_string: Apple M5 Pro hw.memsize: 68719476736 hw.activecpu: 18 hw.perflevel0.l1icachesize: 196608 hw.perflevel0.l1dcachesize: 131072 hw.perflevel0.l2cachesize: 16777216 hw.perflevel1.l1icachesize: 131072 hw.perflevel1.l1dcachesize: 65536 hw.perflevel1.l2cachesize: 8388608 hw.physicalcpu: 18 hw.physicalcpu_max: 18 hw.logicalcpu: 18 hw.logicalcpu_max: 18 hw.cacheconfig: 18 1 6 0 0 0 0 0 0 0 hw.cachesize: 2995912704 65536 8388608 0 0 0 0 0 0 0 hw.pagesize: 16384 hw.pagesize32: 16384 hw.cachelinesize: 128 hw.l1icachesize: 131072 hw.l1dcachesize: 65536 hw.l2cachesize: 8388608 hw.memsize_usable: 67420422144 SPEC is set to: /Volumes/ScratchVolume/spec/cpu2026/1.0.0 Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/disk3s1 1998G 581G 1416G 30% 1.4M 14G 0% /Volumes/ScratchVolume (End of data from sysinfo program) ADDITIONAL INFORMATION FROM SYSCTL $ sysctl hw | grep perflevel0 hw.perflevel0.physicalcpu: 6 hw.perflevel0.physicalcpu_max: 6 hw.perflevel0.logicalcpu: 6 hw.perflevel0.logicalcpu_max: 6 hw.perflevel0.l1icachesize: 196608 hw.perflevel0.l1dcachesize: 131072 hw.perflevel0.l2cachesize: 16777216 hw.perflevel0.cpusperl2: 6 hw.perflevel0.name: Super $ sysctl hw | grep perflevel1 hw.perflevel1.physicalcpu: 12 hw.perflevel1.physicalcpu_max: 12 hw.perflevel1.logicalcpu: 12 hw.perflevel1.logicalcpu_max: 12 hw.perflevel1.l1icachesize: 131072 hw.perflevel1.l1dcachesize: 65536 hw.perflevel1.l2cachesize: 8388608 hw.perflevel1.cpusperl2: 6 hw.perflevel1.name: Performance $ The above shows cache sizes for both core types, and "cpusperl2" indicates sharing among cores. See https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_system_capabilities Note: it is possible that the sysctl cache information may be incomplete. There might be other cache types or other cache characteristics that are not disclosed by the above 'sysctl' command. ADDITIONAL INFORMATION FROM POWERMETRICS Regarding the CPU MHz fields above, note that: - The vendor does not state CPU frequencies in their marketing materials. - Frequency levels are printed by the vendor-provided 'powermetrics' utility; these might or might not correspond to traditional "nominal" or "maximum" MHz. Therefore, the values on this page for Nominal and Maximum MHz must be considered approximate. - The table below lists all of the MHz values mentioned in the dvfm_states section of powermetrics. - On the tested system, the maximum frequencies mentioned are 4608 for the S-cluster and 4380 for the P-Clusters ---------------------------------------------------------------------------------------------------------- CPU Dynamic Frequencies From 'powermetrics --format=plist' ---------------------------------------------------------------------------------------------------------- processor clusters dvfm_states name freq ---------- ---------------------------------------------------------------------------------------------- P0-Cluster 1344 1644 1992 2304 2652 2964 3240 3504 3696 3876 4044 4176 4284 4308 4380 P1-Cluster 1344 1644 1992 2304 2652 2964 3240 3504 3696 3876 4044 4176 4284 4308 4380 S-Cluster 1308 1620 1980 2292 2580 2880 3180 3432 3648 3828 3984 4104 4188 4236 4284 4308 4332 4428 4512 4608 The table above was extracted from powermetrics via Perl code: open P, "powermetrics --sample-count=0 --show-initial-usage --samplers=cpu_power --format=plist|" or die "cannot run powermetrics"; while (

) { if (m{name(\S+Cluster)}) { printf "%-10s ", $1; $printing = 1; @freqs = (); } next if ! $printing; if (m{^}) { print join(" ", @freqs), "\n"; $printing = 0; } if (m{freq(\d+)}) { push @freqs, $1; } } Compiler Version Notes ---------------------- ============================================================================== C | 854.graph500_s(base) ------------------------------------------------------------------------------ Homebrew clang version 22.1.3 Target: arm64-apple-darwin25.4.0 Thread model: posix InstalledDir: /opt/homebrew/Cellar/llvm/22.1.3/bin Configuration file: /opt/homebrew/Cellar/llvm/22.1.3/etc/clang/arm64-apple-darwin25.cfg ------------------------------------------------------------------------------ ============================================================================== C++ | 807.ntest_s(base) 827.cppcheck_s(base) 853.ns3_s(base) ------------------------------------------------------------------------------ Homebrew clang version 22.1.3 Target: arm64-apple-darwin25.4.0 Thread model: posix InstalledDir: /opt/homebrew/Cellar/llvm/22.1.3/bin Configuration file: /opt/homebrew/Cellar/llvm/22.1.3/etc/clang/arm64-apple-darwin25.cfg ------------------------------------------------------------------------------ ============================================================================== C++, C | 801.xz_s(base) 817.flac_s(base) 821.gcc_s(base) 823.llvm_s(base) | 829.abc_s(base) 834.vpr_s(base) 835.gem5_s(base) 838.diamond_s(base) | 846.minizinc_s(base) ------------------------------------------------------------------------------ Homebrew clang version 22.1.3 Target: arm64-apple-darwin25.4.0 Thread model: posix InstalledDir: /opt/homebrew/Cellar/llvm/22.1.3/bin Configuration file: /opt/homebrew/Cellar/llvm/22.1.3/etc/clang/arm64-apple-darwin25.cfg ------------------------------------------------------------------------------ Base Compiler Invocation ------------------------ C benchmarks: clang C++ benchmarks: clang++ Benchmarks using both C and C++: clang++ clang Base Optimization Flags ----------------------- C benchmarks: -std=c18 -g -O3 -Wno-implicit-function-declaration -fopenmp -DSPEC_OPENMP C++ benchmarks: 807.ntest_s: -std=c++17 -g -O3 -Wno-implicit-function-declaration -fopenmp -DSPEC_OPENMP 827.cppcheck_s: -std=c++17 -g -O3 -Wno-implicit-function-declaration 853.ns3_s: Same as 827.cppcheck_s Benchmarks using both C and C++: -std=c++17 -std=c18 -g -O3 -Wno-implicit-function-declaration Base Other Flags ---------------- C benchmarks: -L/opt/homebrew/opt/libomp/lib C++ benchmarks: 807.ntest_s: -L/opt/homebrew/opt/libomp/lib -I/opt/homebrew/opt/libomp/include The flags file that was used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/llvm-rev-A3.html You can also download the XML flags source by saving the following link: http://www.spec.org/cpu2026/results/flags/llvm-rev-A3.xml SPEC CPU and SPECspeed are registered trademarks of the Standard Performance Evaluation Corporation. All other brand and product names appearing in this result are trademarks or registered trademarks of their respective holders. ---------------------------------------------------------------------------------------------------------------------------------- For questions about this result, please contact the tester. For other inquiries, please contact info@spec.org. Copyright 2026 Standard Performance Evaluation Corporation Tested with SPEC CPU(R)2026 v1.0.0 on 2026-04-22 05:23:15-0400. Report generated on 2026-05-04 23:34:45 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.