Pentium G645 vs Celeron J4125

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Aggregate performance score

Celeron J4125
2019
4 cores / 4 threads, 10 Watt
1.86
+107%
Pentium G645
2012
2 cores / 2 threads, 65 Watt
0.90

Celeron J4125 outperforms Pentium G645 by a whopping 107% based on our aggregate benchmark results.

Primary details

Comparing Celeron J4125 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking19982549
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.550.06
Market segmentDesktop processorDesktop processor
Power efficiency17.591.31
Architecture codenameGemini Lake Refresh (2019)Sandy Bridge (2011−2013)
Release date4 November 2019 (5 years ago)2 September 2012 (12 years ago)
Launch price (MSRP)$107$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Celeron J4125 has 9150% better value for money than Pentium G645.

Detailed specifications

Celeron J4125 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 cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed2 GHz2.9 GHz
Boost clock speed2.7 GHz2.9 GHz
Bus rateno data5 GT/s
L1 cache56 KB (per core)64 KB (per core)
L2 cache4 MB (shared)256 KB (per core)
L3 cache4 MB3 MB (shared)
Chip lithography14 nm32 nm
Die size93 mm2131 mm2
Maximum core temperature105 °C69 °C
Number of transistorsno data504 million
64 bit support++
Windows 11 compatibility+-

Compatibility

Information on Celeron J4125 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 configuration11
SocketFCBGA1090FCLGA1155
Power consumption (TDP)10 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron J4125 and Pentium G645. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2Intel® 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 Accessno data+
Smart Response-no data
GPIO+no data
Turbo Boost Max 3.0-no data
FDIno data+
Fast Memory Accessno data+

Security technologies

Celeron J4125 and Pentium G645 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDB++
Secure Key+no data
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data
Anti-Theft-no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron J4125 and Pentium G645 are enumerated here.

VT-d+-
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron J4125 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR3
Maximum memory size8 GB32 GB
Max memory channels22
Maximum memory bandwidthno data17 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 600Intel HD Graphics for 2nd Generation Intel Processors
Max video memory8 GBno data
Quick Sync Video+-
Graphics max frequency750 MHz1.1 GHz
Execution Units12no data

Graphics interfaces

Available interfaces and connections of Celeron J4125 and Pentium G645 integrated GPUs.

Number of displays supported32
eDP+no data
DisplayPort+-
HDMI+-
MIPI-DSI+no data

Graphics image quality

Maximum display resolutions supported by Celeron J4125 and Pentium G645 integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@30Hzno data
Max resolution over eDP4096x2160@60Hzno data
Max resolution over DisplayPort4096x2160@60Hzno data

Graphics API support

APIs supported by Celeron J4125 and Pentium G645 integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.4no data

Peripherals

Specifications and connection of peripherals supported by Celeron J4125 and Pentium G645.

PCIe version2.02.0
PCI Express lanes6no data
USB revision2.0/3.0no data
Total number of SATA ports2no data
Max number of SATA 6 Gb/s Ports2no data
Number of USB ports8no 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.

Celeron J4125 1.86
+107%
Pentium G645 0.90

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.

Celeron J4125 2957
+107%
Pentium G645 1429

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.

Celeron J4125 346
Pentium G645 454
+31.2%

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.

Celeron J4125 964
+24.7%
Pentium G645 773

Gaming performance

Pros & cons summary


Performance score 1.86 0.90
Integrated graphics card 0.87 0.77
Recency 4 November 2019 2 September 2012
Physical cores 4 2
Threads 4 2
Chip lithography 14 nm 32 nm
Power consumption (TDP) 10 Watt 65 Watt

Celeron J4125 has a 106.7% higher aggregate performance score, 13% faster integrated GPU, an age advantage of 7 years, 100% more physical cores and 100% more threads, a 128.6% more advanced lithography process, and 550% lower power consumption.

The Celeron J4125 is our recommended choice as it beats the Pentium G645 in performance tests.


Should you still have questions on choice between Celeron J4125 and Pentium G645, ask them in Comments section, and we shall answer.

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Intel Celeron J4125
Celeron J4125
Intel Pentium G645
Pentium G645

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Community ratings

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Questions & comments

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