Pentium Silver J5005 vs i7-3940XM
Aggregate performance score
Core i7-3940XM outperforms Pentium Silver J5005 by an impressive 88% based on our aggregate benchmark results.
Primary details
Comparing Core i7-3940XM and Pentium Silver J5005 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1482 | 1937 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.49 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | Intel Pentium Silver |
| Power efficiency | 6.33 | 18.48 |
| Architecture codename | Ivy Bridge (2012−2013) | Goldmont Plus (2017) |
| Release date | 3 September 2012 (12 years ago) | 11 December 2017 (6 years ago) |
| Launch price (MSRP) | $1,096 | $161 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-3940XM and Pentium Silver J5005 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) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 3 GHz | 1.5 GHz |
| Boost clock speed | 3.9 GHz | 2.8 GHz |
| Bus rate | 5 GT/s | no data |
| Multiplier | no data | 15 |
| L1 cache | 64K (per core) | 256 KB |
| L2 cache | 256K (per core) | 4 MB |
| L3 cache | 8 MB (shared) | 4 MB (shared) |
| Chip lithography | 22 nm | 14 nm |
| Die size | 160 mm2 | 93 mm2 |
| Maximum core temperature | 105 °C | 105 deg C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 1,400 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-3940XM and Pentium Silver J5005 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 | FCPGA988 | FCBGA1090 |
| Power consumption (TDP) | 55 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-3940XM and Pentium Silver J5005. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX | Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| 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 |
| Smart Response | no data | - |
| Demand Based Switching | - | no data |
| GPIO | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Core i7-3940XM and Pentium Silver J5005 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | + | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
| Anti-Theft | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-3940XM and Pentium Silver J5005 are enumerated here.
| AMD-V | + | - |
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-3940XM and Pentium Silver J5005. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | upto-2400 |
| Maximum memory size | 32 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 25.6 GB/s | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 4000 | Intel UHD Graphics 605 |
| Max video memory | no data | 8 GB |
| Quick Sync Video | + | + |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.35 GHz | 800 MHz |
| Execution Units | no data | 18 |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i7-3940XM and Pentium Silver J5005 integrated GPUs.
| Number of displays supported | 3 | 3 |
| eDP | + | + |
| DisplayPort | + | + |
| HDMI | + | + |
| MIPI-DSI | no data | + |
| SDVO | + | no data |
| CRT | + | no data |
Graphics image quality
Maximum display resolutions supported by Core i7-3940XM and Pentium Silver J5005 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
Graphics API support
APIs supported by Core i7-3940XM and Pentium Silver J5005 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.4 |
Peripherals
Specifications and connection of peripherals supported by Core i7-3940XM and Pentium Silver J5005.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 6 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | - |
| UART | no data | + |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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
| Performance score | 3.75 | 1.99 |
| Integrated graphics card | 1.18 | 1.17 |
| Recency | 3 September 2012 | 11 December 2017 |
| Threads | 8 | 4 |
| Chip lithography | 22 nm | 14 nm |
| Power consumption (TDP) | 55 Watt | 10 Watt |
i7-3940XM has a 88.4% higher aggregate performance score, 0.9% faster integrated GPU, and 100% more threads.
Pentium Silver J5005, on the other hand, has an age advantage of 5 years, a 57.1% more advanced lithography process, and 450% lower power consumption.
The Core i7-3940XM is our recommended choice as it beats the Pentium Silver J5005 in performance tests.
Be aware that Core i7-3940XM is a notebook processor while Pentium Silver J5005 is a desktop one.
Should you still have questions on choice between Core i7-3940XM and Pentium Silver J5005, ask them in Comments section, and we shall answer.
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