i7-8559U vs Pentium D 940
Aggregate performance score
Core i7-8559U outperforms Pentium D 940 by a whopping 1324% 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 | 3298 | 1399 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.36 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Core i7 |
| Power efficiency | 0.11 | 7.09 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Presler (2005−2007) | Coffee Lake-U (2018−2019) |
| Release date | 5 January 2006 (19 years ago) | 5 April 2018 (7 years ago) |
| Launch price (MSRP) | $423 | $431 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Pentium D 940 and i7-8559U have a nearly equal value for money.
Performance to price scatter graph
Detailed specifications
Pentium D 940 and Core i7-8559U 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) | 4 (Quad-Core) |
| Threads | 2 | 8 |
| Base clock speed | 3.2 GHz | 2.7 GHz |
| Boost clock speed | 3.2 GHz | 4.5 GHz |
| Bus type | no data | OPI |
| Bus rate | no data | 4 GT/s |
| Multiplier | no data | 27 |
| L1 cache | 16 KB (per core) | 64K (per core) |
| L2 cache | 2 MB (per die) | 256K (per core) |
| L3 cache | 0 KB | 8 MB (shared) |
| Chip lithography | 65 nm | 14 nm |
| Die size | 2x 81 mm2 | 123 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 69 °C | 72 °C |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 940 and Core i7-8559U 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 (Uniprocessor) |
| Socket | LGA775,PLGA775 | FCBGA1528 |
| Power consumption (TDP) | 130 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 940 and Core i7-8559U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| eDRAM | no data | 128 MB |
| Speed Shift | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
Security technologies
Pentium D 940 and Core i7-8559U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 940 and Core i7-8559U are enumerated here.
| AMD-V | - | + |
| VT-d | - | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 940 and Core i7-8559U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | Intel Iris Plus Graphics 655 |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.2 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Pentium D 940 and Core i7-8559U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Pentium D 940 and Core i7-8559U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096 x 2304@30Hz |
| Max resolution over eDP | no data | 4096 x 2304@60Hz |
| Max resolution over DisplayPort | no data | 4096 x 2304@60Hz |
Graphics API support
APIs supported by Pentium D 940 and Core i7-8559U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Pentium D 940 and Core i7-8559U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
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 | 0.33 | 4.70 |
| Recency | 5 January 2006 | 5 April 2018 |
| Physical cores | 2 | 4 |
| Threads | 2 | 8 |
| Chip lithography | 65 nm | 14 nm |
| Power consumption (TDP) | 130 Watt | 28 Watt |
i7-8559U has a 1324.2% higher aggregate performance score, an age advantage of 12 years, 100% more physical cores and 300% more threads, a 364.3% more advanced lithography process, and 364.3% lower power consumption.
The Intel Core i7-8559U is our recommended choice as it beats the Intel Pentium D 940 in performance tests.
Note that Pentium D 940 is a desktop processor while Core i7-8559U is a notebook one.
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