Pentium D 945 vs A6-6400K
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2584 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD A-Series (Desktop) | no data |
| Power efficiency | 1.38 | no data |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Richland (2013−2014) | Presler (2005−2007) |
| Release date | 1 June 2013 (11 years ago) | 23 July 2006 (18 years ago) |
| Launch price (MSRP) | no data | $163 |
Detailed specifications
A6-6400K and Pentium D 945 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 | 3.9 GHz | 3.4 GHz |
| Boost clock speed | 4.1 GHz | 3.4 GHz |
| L1 cache | 96 KB | 16 KB (per core) |
| L2 cache | 1024 KB | 2 MB (per die) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 32 nm | 65 nm |
| Die size | 246 mm2 | 2x 81 mm2 |
| Maximum core temperature | 70 °C | no data |
| Maximum case temperature (TCase) | 70 °C | 63 °C |
| Number of transistors | 1,178 million | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 1.2V-1.3375V |
Compatibility
Information on A6-6400K and Pentium D 945 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 | FM2 | LGA775,PLGA775 |
| Power consumption (TDP) | 65 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6-6400K and Pentium D 945. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0 | no data |
| AES-NI | + | - |
| FMA | FMA4 | - |
| AVX | + | - |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
A6-6400K and Pentium D 945 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 A6-6400K and Pentium D 945 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | - |
| VT-x | no data | - |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6-6400K and Pentium D 945. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR1, DDR2, DDR3 |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8470D | On certain motherboards (Chipset feature) |
| จำนวนพาธไลน์ | 192 | no data |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A6-6400K and Pentium D 945 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A6-6400K and Pentium D 945 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 11 | no data |
Peripherals
Specifications and connection of peripherals supported by A6-6400K and Pentium D 945.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 1 June 2013 | 23 July 2006 |
| Chip lithography | 32 nm | 65 nm |
| Power consumption (TDP) | 65 Watt | 95 Watt |
A6-6400K has an age advantage of 6 years, a 103.1% more advanced lithography process, and 46.2% lower power consumption.
We couldn't decide between AMD A6-6400K and Intel Pentium D 945. We've got no test results to judge.
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