Intel Core i7-2677M vs Intel Core 2 Duo T6400

Comparative analysis of Intel Core i7-2677M 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core i7-2677M

Intel Core 2 Duo T6400

Differences

Reasons to consider the Intel Core i7-2677M

CPU is newer: launch date 2 year(s) 5 month(s) later
2 more threads: 4 vs 2
Around 45% higher clock speed: 2.90 GHz vs 2 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2.1x lower typical power consumption: 17 Watt vs 35 Watt
Around 58% better performance in PassMark - Single thread mark: 1260 vs 796
2.6x better performance in PassMark - CPU mark: 1912 vs 727
Around 95% better performance in Geekbench 4 - Single Core: 494 vs 253
2.2x better performance in Geekbench 4 - Multi-Core: 1004 vs 462

Specifications (specs)
Launch date	27 June 2011 vs 1 January 2009
Number of threads	4 vs 2
Maximum frequency	2.90 GHz vs 2 GHz
Manufacturing process technology	32 nm vs 45 nm
Thermal Design Power (TDP)	17 Watt vs 35 Watt
Benchmarks
PassMark - Single thread mark	1260 vs 796
PassMark - CPU mark	1912 vs 727
Geekbench 4 - Single Core	494 vs 253
Geekbench 4 - Multi-Core	1004 vs 462

Reasons to consider the Intel Core 2 Duo T6400

Around 5% higher maximum core temperature: 105°C vs 100 C
4x more L2 cache, more data can be stored in the L2 cache for quick access later

Maximum core temperature	105°C vs 100 C
L2 cache	2048 KB vs 512 KB

Compare benchmarks

CPU 1: Intel Core i7-2677M
CPU 2: Intel Core 2 Duo T6400

PassMark - Single thread mark

CPU 1

CPU 2

1260

796

PassMark - CPU mark

CPU 1

CPU 2

1912

727

Geekbench 4 - Single Core

CPU 1

CPU 2

494

253

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1004

462

Name	Intel Core i7-2677M	Intel Core 2 Duo T6400
PassMark - Single thread mark	1260	796
PassMark - CPU mark	1912	727
Geekbench 4 - Single Core	494	253
Geekbench 4 - Multi-Core	1004	462
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.645
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	27.427
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.189
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.679
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	1.781

Compare specifications (specs)

	Intel Core i7-2677M	Intel Core 2 Duo T6400
Essentials
Architecture codename	Sandy Bridge	Penryn
Launch date	27 June 2011	1 January 2009
Launch price (MSRP)	$317
Place in performance rating	2932	2925
Processor Number	i7-2677M	T6400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Price now		$14.99
Value for money (0-100)		24.07
Performance
64 bit support
Base frequency	1.80 GHz	2.00 GHz
Bus Speed	5 GT/s DMI	800 MHz FSB
Die size	149 mm	107 mm2
L1 cache	128 KB
L2 cache	512 KB	2048 KB
L3 cache	4096 KB
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	100 C	105°C
Maximum frequency	2.90 GHz	2 GHz
Number of cores	2	2
Number of threads	4	2
Transistor count	624 Million	410 million
Front-side bus (FSB)		800 MHz
VID voltage range		1.000V-1.250V
Memory
Max memory channels	2
Maximum memory bandwidth	21.3 GB/s
Maximum memory size	8.01 GB
Supported memory types	DDR3 1066/1333
Graphics
Device ID	0x116
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 GHz
Graphics max frequency	1.2 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel® HD Graphics 3000
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	31.0mm x 24.0mm (BGA1023)	35mm x 35mm
Sockets supported	FCBGA1023	PGA478
Thermal Design Power (TDP)	17 Watt	35 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2.0
PCIe configurations	1x16, 2x8, 1x8 2x4
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
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
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)