Core i5-14400F vs Core 2 Extreme QX9300
Aggregate performance score
Core i5-14400F outperforms Core 2 Extreme QX9300 by a whopping 1320% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2713 | 583 |
| Place by popularity | not in top-100 | 34 |
| Cost-effectiveness evaluation | no data | 62.57 |
| Market segment | Laptop | Desktop processor |
| Series | Core 2 Extreme | no data |
| Power efficiency | 0.97 | 9.50 |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Penryn (2008−2011) | Raptor Lake-R (2023−2025) |
| Release date | August 2008 (17 years ago) | 8 January 2024 (2 years ago) |
| Launch price (MSRP) | no data | $196 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Basic parameters of Core 2 Extreme QX9300 and Core i5-14400F: 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 | 4 (Quad-Core) | 10 (Deca-Core) |
| Performance-cores | no data | 6 |
| Efficient-cores | no data | 4 |
| Threads | 4 | 16 |
| Base clock speed | 2.53 GHz | 2.5 GHz |
| Boost clock speed | 2.53 GHz | 4.7 GHz |
| Bus rate | 1066 MHz | no data |
| L1 cache | 64 KB | 80 KB (per core) |
| L2 cache | 12 MB | 1.25 MB (per core) |
| L3 cache | 0 KB | 20 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 2x 107 mm2 | 215 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
| VID voltage range | 1.05V-1.175V | no data |
Compatibility
Information on Core 2 Extreme QX9300 and Core i5-14400F 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 | 2 | 1 |
| Socket | PGA478 | FCLGA1700 |
| Power consumption (TDP) | 45 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9300 and Core i5-14400F. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | - | no data |
| AMT | + | no data |
| FSB parity | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Core 2 Extreme QX9300 and Core i5-14400F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX9300 and Core i5-14400F are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9300 and Core i5-14400F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-4800, DDR4-3200 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 76.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9300 and Core i5-14400F.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 20 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 1.03 | 14.63 |
| Physical cores | 4 | 10 |
| Threads | 4 | 16 |
| Power consumption (TDP) | 45 Watt | 65 Watt |
Core 2 Extreme QX9300 has 44% lower power consumption.
i5-14400F, on the other hand, has a 1320% higher aggregate performance score, and 150% more physical cores and 300% more threads.
The Intel Core i5-14400F is our recommended choice as it beats the Intel Core 2 Extreme QX9300 in performance tests.
Be aware that Core 2 Extreme QX9300 is a notebook processor while Core i5-14400F is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
