Celeron 4205U vs Pentium G645
Aggregate performance score
Pentium G645 outperforms Celeron 4205U by a small 5% based on our aggregate benchmark results.
Primary details
Comparing Pentium G645 and Celeron 4205U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2531 | 2554 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.06 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Celeron |
| Power efficiency | 1.31 | 5.45 |
| Architecture codename | Sandy Bridge (2011−2013) | Whiskey Lake-U (2018−2019) |
| Release date | 2 September 2012 (12 years ago) | 23 January 2019 (5 years ago) |
| Launch price (MSRP) | $80 | $107 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium G645 and Celeron 4205U 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 | 2.9 GHz | 1.8 GHz |
| Boost clock speed | 2.9 GHz | 1.8 GHz |
| Bus type | no data | OPI |
| Bus rate | 5 GT/s | 4 GT/s |
| Multiplier | no data | 18 |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 256 KB (per core) | 512 KB |
| L3 cache | 3 MB (shared) | 2 MB (shared) |
| Chip lithography | 32 nm | 14 nm |
| Die size | 131 mm2 | no data |
| Maximum core temperature | 69 °C | 100 °C |
| Number of transistors | 504 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Pentium G645 and Celeron 4205U 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 | FCLGA1155 | FCBGA1528 |
| Power consumption (TDP) | 65 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium G645 and Celeron 4205U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | + |
| Smart Response | no data | + |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Pentium G645 and Celeron 4205U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium G645 and Celeron 4205U are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium G645 and Celeron 4205U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3, DDR4 |
| Maximum memory size | 32 GB | 64 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 17 GB/s | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for 2nd Generation Intel® Processors | Intel® UHD Graphics for 8th Generation Intel® Processors |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | - | + |
| Graphics max frequency | 1.1 GHz | 900 MHz |
Graphics interfaces
Available interfaces and connections of Pentium G645 and Celeron 4205U integrated GPUs.
| Number of displays supported | 2 | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Pentium G645 and Celeron 4205U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Pentium G645 and Celeron 4205U 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 G645 and Celeron 4205U.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 12 |
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 | 0.92 | 0.88 |
| Recency | 2 September 2012 | 23 January 2019 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 65 Watt | 15 Watt |
Pentium G645 has a 4.5% higher aggregate performance score.
Celeron 4205U, on the other hand, has an age advantage of 6 years, a 128.6% more advanced lithography process, and 333.3% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Pentium G645 and Celeron 4205U.
Note that Pentium G645 is a desktop processor while Celeron 4205U is a notebook one.
Should you still have questions on choice between Pentium G645 and Celeron 4205U, ask them in Comments section, and we shall answer.
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