Atom D425 vs Core 2 Duo T6400
Primary details
Comparing Core 2 Duo T6400 and Atom D425 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core 2 Duo | no data |
| Architecture codename | Penryn (2008−2011) | Pineview (2009−2011) |
| Release date | 1 January 2009 (15 years ago) | 21 June 2010 (14 years ago) |
| Launch price (MSRP) | no data | $993 |
Detailed specifications
Core 2 Duo T6400 and Atom D425 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 2 GHz | 1.8 GHz |
| Boost clock speed | 2 GHz | 1.83 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | 2 MB | 512 KB (per core) |
| L3 cache | 2 MB L2 Cache | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 66 mm2 |
| Maximum core temperature | 105 °C | 100 °C |
| Number of transistors | no data | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1V-1.25V | no data |
Compatibility
Information on Core 2 Duo T6400 and Atom D425 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 | PGA478 | FCBGA559 |
| Power consumption (TDP) | 35 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo T6400 and Atom D425. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | + | - |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | no data | - |
| Demand Based Switching | - | - |
| PAE | no data | 32 Bit |
| Status | Discontinued | Discontinued |
Security technologies
Core 2 Duo T6400 and Atom D425 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo T6400 and Atom D425 are enumerated here.
| VT-d | no data | - |
| VT-x | - | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and Atom D425. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR2, DDR3 |
| Maximum memory size | no data | 4 GB |
| Max memory channels | no data | 1 |
| Maximum memory bandwidth | no data | 6.4 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel GMA 3150 |
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.
Pros & cons summary
| Recency | 1 January 2009 | 21 June 2010 |
| Physical cores | 2 | 1 |
| Power consumption (TDP) | 35 Watt | 10 Watt |
Core 2 Duo T6400 has 100% more physical cores.
Atom D425, on the other hand, has an age advantage of 1 year, and 250% lower power consumption.
We couldn't decide between Core 2 Duo T6400 and Atom D425. We've got no test results to judge.
Should you still have questions on choice between Core 2 Duo T6400 and Atom D425, ask them in Comments section, and we shall answer.
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