Core 2 Quad Q8400s: specs and benchmarks
Summary
Intel started Core 2 Quad Q8400s sales 19 April 2009. Based on an Yorkfield architecture, this desktop processor is primarily aimed at home systems. It has 4 cores and 4 threads, and is based on 45 nm manufacturing technology, with a maximum frequency of 666 MHz and a locked multiplier.
Compatibility-wise, this is FCLGA775,LGA775 processor with a TDP of 65 Watt and a maximum temperature of 76 °C. It supports DDR1, DDR2, DDR3 memory.
Primary details
Core 2 Quad Q8400s processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Market segment | Desktop processor | |
| Architecture codename | Yorkfield (2007−2009) | |
| Release date | 19 April 2009 (15 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 4 (Quad-Core) | |
| Threads | 4 | |
| Base clock speed | 2.66 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 0.67 GHz | of 6.2 GHz (Core i9-14900KS) |
| Bus rate | 1333 MHz | |
| L1 cache | 64 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 4 MB (shared) | of 2 MB (Xeon 6980P) |
| L3 cache | 0 KB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 45 nm | of 3 nm (Core Ultra 9 285K) |
| Die size | 2x 82 mm2 | |
| Maximum case temperature (TCase) | 76 °C | of 105 °C (Core i7-5950HQ) |
| Number of transistors | 456 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| VID voltage range | 0.85V-1.3625V |
Compatibility
Information on Core 2 Quad Q8400s compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | FCLGA775,LGA775 | |
| Power consumption (TDP) | 65 Watt | of 3100 ‑ 4500 (Ryzen 7 7435H) |
Technologies and extensions
Technological capabilities and additional instructions supported by Core 2 Quad Q8400s. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | |
| Turbo Boost Technology | - | |
| Hyper-Threading Technology | - | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Demand Based Switching | - |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | |
| EDB | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-x | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Core 2 Quad Q8400s's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of a GPU integrated into Core 2 Quad Q8400s.
| Integrated graphics card | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 2.0 | of 5.0 (EPYC 9655P) |
Benchmark performance
Single-core and multi-core benchmark results of Core 2 Quad Q8400s. Overall benchmark performance is measured in points in 0-100 range, higher is better.
We have no data on Core 2 Quad Q8400s benchmark results.
Send your test results of Core 2 Quad Q8400s.
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Recommended GPUs
People consider these graphics cards to be good for Core 2 Quad Q8400s, according to our PC configuration statistics.
These are the fastest graphics cards for Core 2 Quad Q8400s in our user configuration statistics. There is a total of 78 configurations using Core 2 Quad Q8400s in our database.
