Specifications
Please visit Intel Core 2 Quad Q9400S and Intel Core 2 Quad Q9650 pages for detailed specifications of both microprocessors.
| | Intel Core 2 Quad Q9400S | Intel Core 2 Quad Q9650 |
| General information |
| Market segment | Desktop |
|---|
| Manufacturer | Intel |
|---|
| Family | Core 2 Quad |
|---|
| Model number | Q9400S | Q9650 |
|---|
| CPU part number | AT80580AJ0676M | AT80569PJ080N |
|---|
| Box part number | BX80580Q9400S | BX80569Q9650
BXC80569Q9650 |
|---|
| Introduction date | | |
|---|
| Socket | Socket 775 |
|---|
| Processing Unit |
| Cores | 4 |
|---|
| Threads | |
|---|
| Frequency (MHz) | 2667 | 3000 |
|---|
| L1 cache (KB) | |
|---|
| L2 cache (KB) | | |
|---|
| Integrated Graphics |
| GPU Type | |
|---|
| Architecture / Microarchitecture |
| Microarchitecture | |
|---|
| Core name | |
|---|
| Technology (micron) | |
|---|
| Data width (bits) | 64 |
|---|
| Bus speed (MHz) | |
|---|
| Multiprocessing | |
|---|
| Instruction set extensions |
| AMD64 / EM64T 64-bit technology | |
|---|
| MMX | |
|---|
| SSE | |
|---|
| SSE2 | |
|---|
| SSE3 | |
|---|
| SSE4.1 | |
|---|
| SSSE3 / Supplemental SSE3 | |
|---|
| Supported technologies |
| PowerNow! / Enhanced SpeedStep | |
|---|
| Trusted Execution | |
|---|
| Virtualization | |
|---|
| Virus Protection / Execute Disable bit | |
|---|
| Integrated Memory Controller(s) |
| The number of controllers | |
|---|
| Electrical / Thermal parameters |
| Core voltage (V) | |
|---|
| Max temperature (°C) | | |
|---|
| Max power dissipation (Watt) | |
|---|
| TDP (Watt) | | |
|---|
Notes:
Rows with different specifications or features are highlighted.
Better specifications are shown in green color. Worse specs are shown in red color.
CPUIDs
The table below compares support for x86 extensions and technologies,
as well as individual instructions and low-level features of the Intel Core 2 Quad Q9400S
and Intel Core 2 Quad Q9650 microprocessors. Information in this table was
retrieved from actual processors using CPUID instruction, and we also
utilized internal timer to measure CPU frequency. Be aware that all
technologies, disabled in BIOS or by a virtual machine, will be shown as not
supported.
Different steppings of Intel processors may also have slightly different features.
In rare cases, measured frequency may differ from official specifications.
| |
CPUID 1 |
CPUID 2 |
| Manufacturer | Intel |
|---|
| CPU Family | Core 2 Quad |
|---|
| Model / Processor Number | Q9400S | Q9650 |
|---|
| Measured Frequency | 2671 MHz | 3447 MHz |
|---|
| CWID version | 0.5 |
|---|
| Part number (supplied) | AT80580AJ0676M | AT80569PJ080N |
|---|
| Part number (guessed) | AT80580AJ0676M | AT80569PJ080N |
|---|
| S-Spec / Stepping Code | SLG9U | |
|---|
| | |
| Vendor | GenuineIntel |
|---|
| Processor name (BIOS) | Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz | Intel(R) Core(TM)2 Quad CPU Q9650 @ 3.00GHz |
|---|
| Cores | 4 |
|---|
| Logical processors | 4 |
|---|
| Processor type | Original OEM Processor |
|---|
| CPUID signature | 1067A |
|---|
| Family | 6 (06h) |
|---|
| Model | 23 (017h) |
|---|
| Stepping | 10 (0Ah) |
|---|
| TLB/Cache details | 64-byte Prefetching
Data TLB: 4-KB Pages, 4-way set associative, 256 entries
Data TLB: 4-MB Pages, 4-way set associative, 32 entries
Instruction TLB: 2-MB pages, 4-way, 8 entries or 4M pages, 4-way, 4 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 128 entries
L1 Data TLB: 4-KB pages, 4-way set associative, 16 entries
L1 Data TLB: 4-MB pages, 4-way set associative, 16 entries |
|---|
Instruction set extensions
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed
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