Por Ramhound, existe um utilitário chamado coreinfo que fornece funcionalidade como cat /proc/cpuinfo no Linux.
Você tem que pesquisar por isso, mas você pode encontrar as informações aqui,
LAHF-SAHF - Supports LAHF/SAHF instructions in 64-bit mode
NX - Supports no-execute page protection
CX16 * Supports CMPXCHG16B instruction
X64 * Supports 64-bit mode
PREFETCHW - Supports PREFETCHW instruction
O - significa que a CPU não tem esse recurso, o * significa que ele tem esse recurso.
Agora que eu vejo, coreinfo é sugerido pela Microsoft para fazer a determinação nessa página do documento,
Coreinfo is a tool you can use to confirm which of these capabilities your CPU has.+
Resultado completo para o meu processador, um Intel E7525, é assim,
Coreinfo v3.31 - Dump information on system CPU and memory topology
Copyright (C) 2008-2014 Mark Russinovich
Sysinternals - www.sysinternals.com
Intel(R) Xeon(TM) CPU 3.40GHz
x86 Family 15 Model 4 Stepping 3, GenuineIntel
Microcode signature: 00000005
HTT * Hyperthreading enabled
HYPERVISOR - Hypervisor is present
VMX - Supports Intel hardware-assisted virtualization
SVM - Supports AMD hardware-assisted virtualization
X64 * Supports 64-bit mode
SMX - Supports Intel trusted execution
SKINIT - Supports AMD SKINIT
NX - Supports no-execute page protection
SMEP - Supports Supervisor Mode Execution Prevention
SMAP - Supports Supervisor Mode Access Prevention
PAGE1GB - Supports 1 GB large pages
PAE * Supports > 32-bit physical addresses
PAT * Supports Page Attribute Table
PSE * Supports 4 MB pages
PSE36 * Supports > 32-bit address 4 MB pages
PGE * Supports global bit in page tables
SS * Supports bus snooping for cache operations
VME * Supports Virtual-8086 mode
RDWRFSGSBASE - Supports direct GS/FS base access
FPU * Implements i387 floating point instructions
MMX * Supports MMX instruction set
MMXEXT - Implements AMD MMX extensions
3DNOW - Supports 3DNow! instructions
3DNOWEXT - Supports 3DNow! extension instructions
SSE * Supports Streaming SIMD Extensions
SSE2 * Supports Streaming SIMD Extensions 2
SSE3 * Supports Streaming SIMD Extensions 3
SSSE3 - Supports Supplemental SIMD Extensions 3
SSE4a - Supports Streaming SIMDR Extensions 4a
SSE4.1 - Supports Streaming SIMD Extensions 4.1
SSE4.2 - Supports Streaming SIMD Extensions 4.2
AES - Supports AES extensions
AVX - Supports AVX intruction extensions
FMA - Supports FMA extensions using YMM state
MSR * Implements RDMSR/WRMSR instructions
MTRR * Supports Memory Type Range Registers
XSAVE - Supports XSAVE/XRSTOR instructions
OSXSAVE - Supports XSETBV/XGETBV instructions
RDRAND - Supports RDRAND instruction
RDSEED - Supports RDSEED instruction
CMOV * Supports CMOVcc instruction
CLFSH * Supports CLFLUSH instruction
CX8 * Supports compare and exchange 8-byte instructions
CX16 * Supports CMPXCHG16B instruction
BMI1 - Supports bit manipulation extensions 1
BMI2 - Supports bit manipulation extensions 2
ADX - Supports ADCX/ADOX instructions
DCA - Supports prefetch from memory-mapped device
F16C - Supports half-precision instruction
FXSR * Supports FXSAVE/FXSTOR instructions
FFXSR - Supports optimized FXSAVE/FSRSTOR instruction
MONITOR * Supports MONITOR and MWAIT instructions
MOVBE - Supports MOVBE instruction
ERMSB - Supports Enhanced REP MOVSB/STOSB
PCLMULDQ - Supports PCLMULDQ instruction
POPCNT - Supports POPCNT instruction
LZCNT - Supports LZCNT instruction
SEP * Supports fast system call instructions
LAHF-SAHF - Supports LAHF/SAHF instructions in 64-bit mode
HLE - Supports Hardware Lock Elision instructions
RTM - Supports Restricted Transactional Memory instructions
DE * Supports I/O breakpoints including CR4.DE
DTES64 * Can write history of 64-bit branch addresses
DS * Implements memory-resident debug buffer
DS-CPL * Supports Debug Store feature with CPL
PCID - Supports PCIDs and settable CR4.PCIDE
INVPCID - Supports INVPCID instruction
PDCM - Supports Performance Capabilities MSR
RDTSCP - Supports RDTSCP instruction
TSC * Supports RDTSC instruction
TSC-DEADLINE - Local APIC supports one-shot deadline timer
TSC-INVARIANT - TSC runs at constant rate
xTPR * Supports disabling task priority messages
EIST * Supports Enhanced Intel Speedstep
ACPI * Implements MSR for power management
TM * Implements thermal monitor circuitry
TM2 - Implements Thermal Monitor 2 control
APIC * Implements software-accessible local APIC
x2APIC - Supports x2APIC
CNXT-ID * L1 data cache mode adaptive or BIOS
MCE * Supports Machine Check, INT18 and CR4.MCE
MCA * Implements Machine Check Architecture
PBE * Supports use of FERR#/PBE# pin
PSN - Implements 96-bit processor serial number
PREFETCHW - Supports PREFETCHW instruction
Maximum implemented CPUID leaves: 00000005 (Basic), 80000008 (Extended).
Logical to Physical Processor Map:
*- Physical Processor 0
-* Physical Processor 1
Logical Processor to Socket Map:
Logical Processor to NUMA Node Map:
** NUMA Node 0
Logical Processor to Cache Map: