Processor Name: Vendor, model and
measured operating frequency of the CPU
CPU ID: CPU identification number.
Each Intel Pentium, AMD-K5, Cyrix 5x86 and above CPUs contains this ID. It
consists of:
Type
0, 1 (OverDrive), or 2
(Upgrade)
Family
4 = 486, 5 = 586, ...
Model
1 = Pentium, 8 = Pentium
MMX
Stepping
Varies
CPU Vendor: Contains the vendor
string stored in CPU (generally this is "GenuineIntel" for
Intel, "AuthenticAMD" for AMD, etc...)
CPU Stepping: During the life-time of
a CPU model, it is common, that the vendor locates some minor errata or mades
minor changes to the CPU. These versions can be identified using the CPU
Stepping (e.g. kB0, kC0)...
CPU Type: Not used for later CPUs.
Can be: Original OEM Processor / OverDrive / Upgrade
Processor Number: Available only for
Intel Pentium III CPUs and only if this feature isn't disabled. This is an
unique serial number for each CPU.
Current Clock Ratio: The CPU clock
multiplier (OperatingFrequency = FSB * ClockRatio). Later CPUs may have this
clock doubled (Athlon/Duron) or quadripled (Pentium 4). This ratio is
available on for Intel Pentium Pro, AMD K6, Cyrix 5x86 and later CPUs.
Current FSB Clock: Front Side Bus
clock measured from CPU operating frequency and detected clock ratio.
Maximum Allowed Frequency: Available
only for Intel Pentium III and later CPUs - Katmai and Coppermine core
(except CPU ID 0x681) and Pentium 4. This is the highest operating frequency
that this CPU is allowed to run by the vendor.
L1 Cache: 1st level cache
memory size (usually divided into instruction and data parts).
L2 Cache: 2nd level cache memory size
and type if integrated in the CPU. Can be integrated (Full, Half-speed) or
ATC (Advanced Tranfer Cache) for Intel Coppermine and above cores.
Instruction TLB: The size and
associativity of the Instruction Translation Look-aside Buffer
Data TLB: The size and
associativity of the Data Translation Look-aside Buffer
CPU Flags: Various CPU feature flags.
Note, that there are 3 sets of these flags depending on the CPU vendor
(Intel, AMD, Cyrix). Althrough most Intel CPUs contain APIC On Chip, this
feature is reported as Present only if running in Multi-processor
system.
P.I.ROM: Program Information ROM.
This info is available only on Intel Pentium II/III Xeon Processors.
Contains information as max. frequency, voltages, cache size, revisions, S-spec/QDF number ...