Pentium D 945 vs i7-8650U
Primary details
Comparing Core i7-8650U and Pentium D 945 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1441 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | no data |
| Power efficiency | 24.73 | no data |
| Architecture codename | Kaby Lake Refresh (2017−2019) | Presler (2005−2007) |
| Release date | 21 August 2017 (7 years ago) | 23 July 2006 (18 years ago) |
| Launch price (MSRP) | $409 | $163 |
Detailed specifications
Core i7-8650U 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 | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 8 | 2 |
| Base clock speed | 1.9 GHz | 3.4 GHz |
| Boost clock speed | 4.2 GHz | 3.4 GHz |
| Bus type | OPI | no data |
| Bus rate | 4 GT/s | no data |
| Multiplier | 19 | no data |
| L1 cache | 256 KB | 16 KB (per core) |
| L2 cache | 1 MB | 2 MB (per die) |
| L3 cache | 8 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 65 nm |
| Die size | 123 mm2 | 2x 81 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | 63 °C |
| Number of transistors | no data | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| VID voltage range | no data | 1.2V-1.3375V |
Compatibility
Information on Core i7-8650U 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 (Uniprocessor) | 1 |
| Socket | FCBGA1356,FC-BGA1356 | LGA775,PLGA775 |
| Power consumption (TDP) | 15 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-8650U and Pentium D 945. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| My WiFi | + | no data |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| SIPP | + | - |
| Smart Response | + | no data |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
Core i7-8650U and Pentium D 945 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-8650U and Pentium D 945 are enumerated here.
| AMD-V | + | - |
| VT-d | + | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-8650U and Pentium D 945. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR1, DDR2, DDR3 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 38.397 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 620 | On certain motherboards (Chipset feature) |
| Max video memory | 32 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.15 GHz | no data |
Graphics interfaces
Available interfaces and connections of Core i7-8650U and Pentium D 945 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Core i7-8650U and Pentium D 945 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096 x 2304@24Hz | no data |
| Max resolution over eDP | 4096 x 2304@60Hz | no data |
| Max resolution over DisplayPort | 4096 x 2304@60Hz | no data |
Graphics API support
APIs supported by Core i7-8650U and Pentium D 945 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-8650U and Pentium D 945.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 12 | no data |
Pros & cons summary
| Recency | 21 August 2017 | 23 July 2006 |
| Physical cores | 4 | 2 |
| Threads | 8 | 2 |
| Chip lithography | 14 nm | 65 nm |
| Power consumption (TDP) | 15 Watt | 95 Watt |
i7-8650U has an age advantage of 11 years, 100% more physical cores and 300% more threads, a 364.3% more advanced lithography process, and 533.3% lower power consumption.
We couldn't decide between Core i7-8650U and Pentium D 945. We've got no test results to judge.
Be aware that Core i7-8650U is a notebook processor while Pentium D 945 is a desktop one.
Should you still have questions on choice between Core i7-8650U and Pentium D 945, ask them in Comments section, and we shall answer.
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