Pentium G645 vs Pentium G4400
Aggregate performance score
Pentium G4400 outperforms Pentium G645 by an impressive 80% based on our aggregate benchmark results.
Primary details
Comparing Pentium G4400 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2098 | 2549 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.61 | 0.06 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Pentium | no data |
| Power efficiency | 3.01 | 1.31 |
| Architecture codename | Skylake (2015−2016) | Sandy Bridge (2011−2013) |
| Release date | 1 September 2015 (9 years ago) | 2 September 2012 (12 years ago) |
| Launch price (MSRP) | $64 | $80 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Pentium G4400 has 917% better value for money than Pentium G645.
Detailed specifications
Pentium G4400 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 | 2 (Dual-core) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | 3.3 GHz | 2.9 GHz |
| Boost clock speed | 3.3 GHz | 2.9 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | 5 GT/s |
| Multiplier | 33 | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 256 KB (per core) |
| L3 cache | 3 MB | 3 MB (shared) |
| Chip lithography | 14 nm | 32 nm |
| Die size | 150 mm2 | 131 mm2 |
| Maximum core temperature | no data | 69 °C |
| Maximum case temperature (TCase) | 65 °C | no data |
| Number of transistors | 1,400 million | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium G4400 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 | FCLGA1151 | FCLGA1155 |
| Power consumption (TDP) | 54 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium G4400 and Pentium G645. 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) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Pentium G4400 and Pentium G645 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 Pentium G4400 and Pentium G645 are enumerated here.
| VT-d | + | - |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium G4400 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | DDR3 |
| Maximum memory size | 64 GB | 32 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 34.134 GB/s | 17 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 510 | Intel HD Graphics for 2nd Generation Intel Processors |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | - |
| Graphics max frequency | 1 GHz | 1.1 GHz |
| InTru 3D | + | - |
Graphics interfaces
Available interfaces and connections of Pentium G4400 and Pentium G645 integrated GPUs.
| Number of displays supported | 3 | 2 |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Pentium G4400 and Pentium G645 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
| Max resolution over VGA | N/A | no data |
Graphics API support
APIs supported by Pentium G4400 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 G4400 and Pentium G645.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 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 | 1.62 | 0.90 |
| Integrated graphics card | 1.61 | 0.77 |
| Recency | 1 September 2015 | 2 September 2012 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 54 Watt | 65 Watt |
Pentium G4400 has a 80% higher aggregate performance score, 109.1% faster integrated GPU, an age advantage of 2 years, a 128.6% more advanced lithography process, and 20.4% lower power consumption.
The Pentium G4400 is our recommended choice as it beats the Pentium G645 in performance tests.
Should you still have questions on choice between Pentium G4400 and Pentium G645, ask them in Comments section, and we shall answer.
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