Pentium E5400 vs Core 2 Duo T5850
Primary details
Comparing Core 2 Duo T5850 and Pentium E5400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2778 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 8.46 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core 2 Duo | no data |
| Power efficiency | no data | 0.90 |
| Architecture codename | Merom (2006−2008) | Wolfdale (2008−2010) |
| Release date | 1 October 2008 (16 years ago) | 18 January 2009 (15 years ago) |
| Launch price (MSRP) | no data | $55 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core 2 Duo T5850 and Pentium E5400 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) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | no data | 2.7 GHz |
| Boost clock speed | 2.1 GHz | 2.7 GHz |
| Bus rate | 667 MHz | no data |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | 2 MB | 2 MB (shared) |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | no data | 82 mm2 |
| Maximum core temperature | no data | 74 °C |
| Number of transistors | no data | 228 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Core 2 Duo T5850 and Pentium E5400 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 | no data | 1 |
| Socket | no data | LGA775 |
| Power consumption (TDP) | 34 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo T5850 and Pentium E5400. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
Security technologies
Core 2 Duo T5850 and Pentium E5400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo T5850 and Pentium E5400 are enumerated here.
| VT-d | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T5850 and Pentium E5400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo T5850 and Pentium E5400.
| PCIe version | no data | 2.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Recency | 1 October 2008 | 18 January 2009 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 34 Watt | 65 Watt |
Core 2 Duo T5850 has 91.2% lower power consumption.
Pentium E5400, on the other hand, has an age advantage of 3 months, and a 44.4% more advanced lithography process.
We couldn't decide between Core 2 Duo T5850 and Pentium E5400. We've got no test results to judge.
Be aware that Core 2 Duo T5850 is a notebook processor while Pentium E5400 is a desktop one.
Should you still have questions on choice between Core 2 Duo T5850 and Pentium E5400, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
