Intel Celeron 1047UE vs Intel Core 2 Duo T6400

Comparative analysis of Intel Celeron 1047UE and Intel Core 2 Duo T6400 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, 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.

Intel Celeron 1047UE

Intel Core 2 Duo T6400

Differences

Reasons to consider the Intel Celeron 1047UE

CPU is newer: launch date 3 year(s) 11 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm
2.1x lower typical power consumption: 17 Watt vs 35 Watt
Around 3% better performance in PassMark - CPU mark: 748 vs 726

Specifications (specs)
Launch date	1 January 2013 vs 1 January 2009
Manufacturing process technology	22 nm vs 45 nm
Thermal Design Power (TDP)	17 Watt vs 35 Watt
Benchmarks
PassMark - CPU mark	748 vs 726

Reasons to consider the Intel Core 2 Duo T6400

Around 43% higher clock speed: 2 GHz vs 1.4 GHz
4x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 52% better performance in PassMark - Single thread mark: 797 vs 526

Specifications (specs)
Maximum frequency	2 GHz vs 1.4 GHz
L2 cache	2048 KB vs 512 KB
Benchmarks
PassMark - Single thread mark	797 vs 526

Compare benchmarks

CPU 1: Intel Celeron 1047UE
CPU 2: Intel Core 2 Duo T6400

PassMark - Single thread mark

CPU 1

CPU 2

526

797

PassMark - CPU mark

CPU 1

CPU 2

748

726

Name	Intel Celeron 1047UE	Intel Core 2 Duo T6400
PassMark - Single thread mark	526	797
PassMark - CPU mark	748	726
Geekbench 4 - Single Core		253
Geekbench 4 - Multi-Core		462

Compare specifications (specs)

	Intel Celeron 1047UE	Intel Core 2 Duo T6400
Essentials
Architecture codename	Ivy Bridge	Penryn
Launch date	1 January 2013	1 January 2009
Launch price (MSRP)	$134
Place in performance rating	2833	2841
Processor Number	1047UE	T6400
Series	Intel® Celeron® Processor 1000 Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Embedded	Mobile
Price now		$14.99
Value for money (0-100)		24.07
Performance
64 bit support
Base frequency	1.40 GHz	2.00 GHz
Bus Speed	5 GT/s DMI	800 MHz FSB
Die size	118 mm	107 mm2
L1 cache	128 KB
L2 cache	512 KB	2048 KB
L3 cache	2 MB
Manufacturing process technology	22 nm	45 nm
Maximum case temperature (TCase)	105 °C
Maximum core temperature	105 °C	105°C
Maximum frequency	1.4 GHz	2 GHz
Number of cores	2	2
Number of threads	2	2
Transistor count	1400 million	410 million
Front-side bus (FSB)		800 MHz
VID voltage range		1.000V-1.250V
Memory
ECC memory support
Max memory channels	2
Maximum memory bandwidth	25.6 GB/s
Maximum memory size	16 GB
Supported memory types	DDR3/DDR3L 1333/1600
Graphics
Graphics base frequency	350 MHz
Graphics max dynamic frequency	900 MHz
Graphics max frequency	900 MHz
Intel® Clear Video HD technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1
Package Size	BGA1023 31mm x 24mm	35mm x 35mm
Sockets supported	FCBGA1023	PGA478
Thermal Design Power (TDP)	17 Watt	35 Watt
Peripherals
Max number of PCIe lanes	1
PCI Express revision	2.0
PCIe configurations	1x16, 2x8, 1x8 & 2x4
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Intel 64
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)