Core 2 Quad Q8400 vs Core i5-1145GRE
Aggregate performance score
Core i5-1145GRE outperforms Core 2 Quad Q8400 by a whopping 294% 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 | 1433 | 2552 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 5.31 | no data |
| Market segment | Laptop | Desktop processor |
| Power efficiency | 17.81 | 1.33 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Tiger Lake-U (2020−2021) | Yorkfield (2007−2009) |
| Release date | 2 September 2020 (5 years ago) | 19 April 2009 (16 years ago) |
| Launch price (MSRP) | $362 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core i5-1145GRE and Core 2 Quad Q8400 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 | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 1.5 GHz | 2.66 GHz |
| Boost clock speed | 4.1 GHz | 0.67 GHz |
| Bus rate | no data | 1333 MHz |
| L1 cache | 80 KB (per core) | 64 KB (per core) |
| L2 cache | 1.25 MB (per core) | 4 MB (shared) |
| L3 cache | 8 MB (shared) | 0 KB |
| Chip lithography | 10 nm | 45 nm |
| Die size | 144 mm2 | 2x 82 mm2 |
| Maximum case temperature (TCase) | no data | 71 °C |
| Number of transistors | no data | 456 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Core i5-1145GRE and Core 2 Quad Q8400 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 | Intel BGA 1449 | FCLGA775,LGA775 |
| Power consumption (TDP) | 28 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-1145GRE and Core 2 Quad Q8400. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
Security technologies
Core i5-1145GRE and Core 2 Quad Q8400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-1145GRE and Core 2 Quad Q8400 are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-1145GRE and Core 2 Quad Q8400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, LPDDR4X | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Iris Xe Graphics G7 80EU | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core i5-1145GRE and Core 2 Quad Q8400.
| PCIe version | 4.0 | 2.0 |
| PCI Express lanes | 4 | no data |
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 | 4.65 | 1.18 |
| Recency | 2 September 2020 | 19 April 2009 |
| Threads | 8 | 4 |
| Chip lithography | 10 nm | 45 nm |
| Power consumption (TDP) | 28 Watt | 95 Watt |
i5-1145GRE has a 294.1% higher aggregate performance score, an age advantage of 11 years, 100% more threads, a 350% more advanced lithography process, and 239.3% lower power consumption.
The Intel Core i5-1145GRE is our recommended choice as it beats the Intel Core 2 Quad Q8400 in performance tests.
Be aware that Core i5-1145GRE is a notebook processor while Core 2 Quad Q8400 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.
