Core 2 Quad Q9400s vs Celeron G1840
Primary details
Comparing Celeron G1840 and Core 2 Quad Q9400s processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2333 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.35 | no data |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Haswell (2013−2015) | Yorkfield (2007−2009) |
| Release date | 1 May 2014 (10 years ago) | 18 January 2009 (15 years ago) |
| Launch price (MSRP) | $53 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Celeron G1840 and Core 2 Quad Q9400s basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Base clock speed | 2.8 GHz | 2.666 GHz |
| Boost clock speed | 2.8 GHz | 0.67 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 6 MB (shared) |
| L3 cache | 3 MB (shared) | 0 KB |
| Chip lithography | 22 nm | 45 nm |
| Die size | 177 mm2 | 2x 82 mm2 |
| Maximum case temperature (TCase) | 72 °C | 76 °C |
| Number of transistors | 1,400 million | 456 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Celeron G1840 and Core 2 Quad Q9400s compatibility with other computer components: 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 | 1 |
| Socket | 1150 | 775 |
| Power consumption (TDP) | 54 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron G1840 and Core 2 Quad Q9400s. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron G1840 and Core 2 Quad Q9400s are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron G1840 and Core 2 Quad Q9400s. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
| Maximum memory bandwidth | 21.3 GB/s | no data |
| ECC memory support | + | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD (Haswell) | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Celeron G1840 and Core 2 Quad Q9400s.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | no data |
Pros & cons summary
| Recency | 1 May 2014 | 18 January 2009 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 54 Watt | 65 Watt |
Celeron G1840 has an age advantage of 5 years, a 104.5% more advanced lithography process, and 20.4% lower power consumption.
Core 2 Quad Q9400s, on the other hand, has 100% more physical cores and 100% more threads.
We couldn't decide between Celeron G1840 and Core 2 Quad Q9400s. We've got no test results to judge.
Should you still have questions on choice between Celeron G1840 and Core 2 Quad Q9400s, ask them in Comments section, and we shall answer.
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