Intel Celeron J3455 vs Intel Pentium G840

Comparative analysis of Intel Celeron J3455 and Intel Pentium G840 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Celeron J3455

Intel Pentium G840

Differences

Reasons to consider the Intel Celeron J3455

2 more cores, run more applications at once: 4 vs 2
2 more threads: 4 vs 2
Around 52% higher maximum core temperature: 105°C vs 69.1°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
6.5x lower typical power consumption: 10 Watt vs 65 Watt
Around 78% better performance in PassMark - CPU mark: 2256 vs 1264
Around 8% better performance in Geekbench 4 - Multi-Core: 1009 vs 935

Specifications (specs)
Number of cores	4 vs 2
Number of threads	4 vs 2
Maximum core temperature	105°C vs 69.1°C
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	10 Watt vs 65 Watt
Benchmarks
PassMark - CPU mark	2256 vs 1264
Geekbench 4 - Multi-Core	1009 vs 935

Reasons to consider the Intel Pentium G840

Around 22% higher clock speed: 2.8 GHz vs 2.30 GHz
4x more maximum memory size: 32 GB vs 8 GB
Around 57% better performance in PassMark - Single thread mark: 1273 vs 813
Around 74% better performance in Geekbench 4 - Single Core: 514 vs 295

Specifications (specs)
Maximum frequency	2.8 GHz vs 2.30 GHz
Maximum memory size	32 GB vs 8 GB
Benchmarks
PassMark - Single thread mark	1273 vs 813
Geekbench 4 - Single Core	514 vs 295

Compare benchmarks

CPU 1: Intel Celeron J3455
CPU 2: Intel Pentium G840

PassMark - Single thread mark

CPU 1

CPU 2

813

1273

PassMark - CPU mark

CPU 1

CPU 2

2256

1264

Geekbench 4 - Single Core

CPU 1

CPU 2

295

514

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1009

935

Name	Intel Celeron J3455	Intel Pentium G840
PassMark - Single thread mark	813	1273
PassMark - CPU mark	2256	1264
Geekbench 4 - Single Core	295	514
Geekbench 4 - Multi-Core	1009	935
GFXBench 4.0 - Car Chase Offscreen (Frames)	628
GFXBench 4.0 - Manhattan (Frames)	1046
GFXBench 4.0 - T-Rex (Frames)	1735
GFXBench 4.0 - Car Chase Offscreen (Fps)	628
GFXBench 4.0 - Manhattan (Fps)	1046
GFXBench 4.0 - T-Rex (Fps)	1735

Compare specifications (specs)

	Intel Celeron J3455	Intel Pentium G840
Essentials
Architecture codename	Apollo Lake	Sandy Bridge
Launch date	Q3'16	May 2011
Place in performance rating	2399	2390
Processor Number	J3455	G840
Series	Intel® Celeron® Processor J Series	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$60
Price now		$34.99
Value for money (0-100)		21.58
Performance
64 bit support
Base frequency	1.50 GHz	2.80 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	105°C	69.1°C
Maximum frequency	2.30 GHz	2.8 GHz
Number of cores	4	2
Number of threads	4	2
Bus Speed		5 GT/s DMI
Die size		131 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		3072 KB (shared)
Transistor count		504 million
Memory
Max memory channels	2	2
Maximum memory size	8 GB	32 GB
Supported memory types	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s	DDR3 1066/1333
Maximum memory bandwidth		21 GB/s
Graphics
Execution Units	12
Graphics base frequency	250 MHz	850 MHz
Graphics max frequency	750 MHz	1.1 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	8 GB
Processor graphics	Intel® HD Graphics 500	Intel HD Graphics
Graphics max dynamic frequency		1.10 GHz
Intel® Flexible Display Interface (Intel® FDI)
Graphics interfaces
DisplayPort
eDP
HDMI
MIPI-DSI
Number of displays supported	3	2
Wireless Display (WiDi) support
Graphics API support
DirectX	Yes
OpenGL	Yes
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	24mm x 31mm	37.5mm x 37.5mm
Sockets supported	FCBGA1296	FCLGA1155
Thermal Design Power (TDP)	10 Watt	65 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	6
Max number of SATA 6 Gb/s Ports	2
Number of USB ports	8
PCI Express revision	2.0	2.0
PCIe configurations	1x4 + 1x2 or 4x1 or 2x1+1x2 + 1x2
Total number of SATA ports	2
UART
USB revision	2.0/3.0
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
HD Audio
Idle States
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Rapid Storage technology (RST)
Intel® Smart Response technology
Intel® Stable Image Platform Program (SIPP)
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Smart Connect
Thermal Monitoring
Flexible Display interface (FDI)
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Advanced Vector Extensions (AVX)
Intel® Fast Memory Access
Intel® Flex Memory Access
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® Virtualization Technology for Itanium (VT-i)
Intel® VT-x with Extended Page Tables (EPT)