Pentium G645 vs Pentium Silver J5005
Aggregate performance score
Pentium Silver J5005 outperforms Pentium G645 by a whopping 118% based on our aggregate benchmark results.
Primary details
Comparing Pentium Silver J5005 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1935 | 2528 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.52 | 0.06 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Pentium Silver | no data |
| Power efficiency | 18.51 | 1.30 |
| Architecture codename | Goldmont Plus (2017) | Sandy Bridge (2011−2013) |
| Release date | 11 December 2017 (6 years ago) | 2 September 2012 (12 years ago) |
| Launch price (MSRP) | $161 | $80 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Pentium Silver J5005 has 2433% better value for money than Pentium G645.
Detailed specifications
Pentium Silver J5005 and Pentium G645 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 | 4 | 2 |
| Base clock speed | 1.5 GHz | 2.9 GHz |
| Boost clock speed | 2.8 GHz | 2.9 GHz |
| Bus rate | no data | 5 GT/s |
| Multiplier | 15 | no data |
| L1 cache | 256 KB | 64 KB (per core) |
| L2 cache | 4 MB | 256 KB (per core) |
| L3 cache | 4 MB (shared) | 3 MB (shared) |
| Chip lithography | 14 nm | 32 nm |
| Die size | 93 mm2 | 131 mm2 |
| Maximum core temperature | 105 deg C | 69 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Pentium Silver J5005 and Pentium G645 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 | FCBGA1090 | FCLGA1155 |
| Power consumption (TDP) | 10 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Silver J5005 and Pentium G645. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | - | no data |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Smart Response | - | no data |
| GPIO | + | no data |
| Turbo Boost Max 3.0 | - | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Pentium Silver J5005 and Pentium G645 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium Silver J5005 and Pentium G645 are enumerated here.
| VT-d | + | - |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium Silver J5005 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | upto-2400 | DDR3 |
| Maximum memory size | 8 GB | 32 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 38.397 GB/s | 17 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 605 | Intel® HD Graphics for 2nd Generation Intel® Processors |
| Max video memory | 8 GB | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 800 MHz | 1.1 GHz |
| Execution Units | 18 | no data |
Graphics interfaces
Available interfaces and connections of Pentium Silver J5005 and Pentium G645 integrated GPUs.
| Number of displays supported | 3 | 2 |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| MIPI-DSI | + | no data |
Graphics image quality
Maximum display resolutions supported by Pentium Silver J5005 and Pentium G645 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
Graphics API support
APIs supported by Pentium Silver J5005 and Pentium G645 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium Silver J5005 and Pentium G645.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 6 | no data |
| USB revision | 2.0/3.0 | no data |
| Total number of SATA ports | 2 | no data |
| Max number of SATA 6 Gb/s Ports | 2 | no data |
| Number of USB ports | 8 | no data |
| 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 | 2.03 | 0.93 |
| Recency | 11 December 2017 | 2 September 2012 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 10 Watt | 65 Watt |
Pentium Silver J5005 has a 118.3% higher aggregate performance score, an age advantage of 5 years, 100% more physical cores and 100% more threads, a 128.6% more advanced lithography process, and 550% lower power consumption.
The Pentium Silver J5005 is our recommended choice as it beats the Pentium G645 in performance tests.
Should you still have questions on choice between Pentium Silver J5005 and Pentium G645, ask them in Comments section, and we shall answer.
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