| Name: | Intel Core 2 Quad Q9400 | 
| Family: | Intel Core2 Quad | 
| Group: | Intel Core 2 Quad Q8000/Q9000 | 
| Segment: | Desktop / Server | 
| Generation: | 2 | 
 
                    | Name: | Intel Core 2 Quad Q9400 | 
| Family: | Intel Core2 Quad | 
| Group: | Intel Core 2 Quad Q8000/Q9000 | 
| Segment: | Desktop / Server | 
| Generation: | 2 | 
| CPU Cores: | 4 | 
| Threads: | 4 | 
| Cores: | 4x | 
| Core architecture: | normal | 
| Hyperthreading: | No | 
| Overclocking: | No | 
| Frequency: | 2.66 GHz | 
| Memory type: | DDR3-1066, DDR2-800 | 
| Max. Memory: | 16.0 GB | 
| Memory channels: | 2 | 
| Bandwidth: | -- | 
| ECC: | No | 
| PCIe: | pci | 
| AES-NI: | No | 
| TDP (PL1 / PBP): | 95 W | 
| TDP (PL2): | None | 
| TDP up: | None | 
| TDP down: | None | 
| Tjunction max: | -- | 
| Technology: | 45 nm | 
| Chip design: | Monolithic | 
| Socket: | LGA 775 | 
| L2-Cache: | 6.0 MB | 
| L3-Cache: | 0 bytes | 
| Architecture: | Yorkfield (Penryn) | 
| Operating systems: | Windows 10, Linux | 
| Virtualization: | VT-x, VT-d | 
| Instruction set (ISA): | x86-64 (64 bit) | 
| ISA extensions: | SSE3, SSE4.1, MMX, SSE2 | 
| Release date: | Q3/2008 | 
| Release price: | -- | 
| Part Number: | -- | 
| Documents: | Technical data sheet | 
 Estimated results for PassMark CPU Mark
    Estimated results for PassMark CPU Mark
|   | Intel Core 2 Extreme QX6700 
                    4C 4T @ 2.66 GHz
                 | 2065 | 
|   | Intel Core 2 Quad Q6700 
                    4C 4T @ 2.66 GHz
                 | 2065 | 
|   | Intel Core 2 Quad Q9400 
                    4C 4T @ 2.66 GHz
                 | 2061 | 
|   | Intel Core i5-2430M 
                    2C 4T @ 2.4 GHz
                 | 2060 | 
|   | AMD A4-5100 
                    4C 4T @ 1.55 GHz
                 | 2060 | 
 Geekbench 5, 64bit (Multi-Core)
    Geekbench 5, 64bit (Multi-Core)
|   | Qualcomm Snapdragon 617 
                    NoneC NoneT @ --
                 | 1176 | 
|   | Intel Core i3-6102E 
                    2C 4T @ 1.9 GHz
                 | 1170 | 
|   | Intel Core 2 Quad Q9400 
                    4C 4T @ 2.66 GHz
                 | 1163 | 
|   | AMD Athlon II X4 615e 
                    4C 4T @ 2.5 GHz
                 | 1161 | 
|   | AMD Ryzen Embedded R1600 
                    2C 4T @ 2.6 GHz
                 | 1160 | 
 CPU-Z Benchmark 17 (Multi-Core)
    CPU-Z Benchmark 17 (Multi-Core)
|   | Intel Core i7-6600U 
                    2C 4T @ 2.6 GHz
                 | 898 | 
|   | Intel Core 2 Quad Q8400 
                    4C 4T @ 2.66 GHz
                 | 894 | 
|   | Intel Core 2 Quad Q9400 
                    4C 4T @ 2.66 GHz
                 | 891 | 
|   | Intel Core 2 Quad Q8300 
                    4C 4T @ 2.5 GHz
                 | 832 | 
|   | Intel Core i3-2130 
                    2C 4T @ 3.4 GHz
                 | 811 | 
 Geekbench 5, 64bit (Single-Core)
    Geekbench 5, 64bit (Single-Core)
|   | Intel Celeron 1005M 
                    2C 2T @ 1.9 GHz
                 | 380 | 
|   | AMD A4-4020 
                    2C 2T @ 3.2 GHz
                 | 379 | 
|   | Intel Core 2 Quad Q9400 
                    4C 4T @ 2.66 GHz
                 | 378 | 
|   | Intel Celeron 1037U 
                    2C 2T @ 1.8 GHz
                 | 376 | 
|   | AMD Athlon II X3 440 
                    3C 3T @ 3.0 GHz
                 | 374 | 
 CPU-Z Benchmark 17 (Single-Core)
    CPU-Z Benchmark 17 (Single-Core)
|   | Intel Core 2 Quad Q9550 
                    4C 4T @ 2.83 GHz
                 | 249 | 
|   | Intel Core2 Duo E7500 
                    2C 2T @ 2.93 GHz
                 | 247 | 
|   | Intel Core 2 Quad Q9400 
                    4C 4T @ 2.66 GHz
                 | 230 | 
|   | Intel Core i5-2410M 
                    2C 4T @ 2.3 GHz
                 | 220 | 
|   | Intel Core 2 Quad Q6600 
                    4C 4T @ 2.4 GHz
                 | 217 |