Intel Celeron Dual-Core T1400 vs Core i7-640LM

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General info

Comparing Core i7-640LM and Celeron Dual-Core T1400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking2341not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Celeron Dual-Core
Architecture codenameArrandale (2010−2011)Merom-2M (2008)
Release date7 January 2010 (14 years old)1 May 2008 (15 years old)
Launch price (MSRP)$332no data
Current price$192 (0.6x MSRP)no data

Technical specs

Core i7-640LM and Celeron Dual-Core T1400 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 cores2 (Dual-core)2 (Dual-core)
Threads42
Base clock speed2.13 GHzno data
Boost clock speed2.93 GHz1.73 GHz
Bus support2500 MHz533 MHz
L1 cache128 KBno data
L2 cache512 KB512 KB
L3 cache4 MBno data
Chip lithography32 nm65 nm
Die size81+177 mm2no data
Maximum core temperature105 °Cno data
Number of transistors382+177 Millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Core i7-640LM and Celeron Dual-Core T1400 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 configuration1no data
SocketBGA1288P
Power consumption (TDP)25 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640LM and Celeron Dual-Core T1400. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2no data
AES-NI+no data
FMA+no data
vPro+no data
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology+no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+no data
Flex Memory Access+no data
PAE36 Bitno data
FDI+no data
Fast Memory Access+no data
StatusDiscontinuedno data

Security technologies

Core i7-640LM and Celeron Dual-Core T1400 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640LM and Celeron Dual-Core T1400 are enumerated here.

VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640LM and Celeron Dual-Core T1400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-800, DDR3-1066no data
Maximum memory size8 GBno data
Max memory channels2no data
Maximum memory bandwidth17.1 GB/sno data
ECC memory support-no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® HD Graphics for Previous Generation Intel® Processorsno data
Clear Video+no data
Clear Video HD+no data
Graphics max frequency566 MHzno data

Graphics interfaces

Available interfaces and connections of Core i7-640LM and Celeron Dual-Core T1400 integrated GPUs.

Number of displays supported2no data

Peripherals

Specifications and connection of peripherals supported by Core i7-640LM and Celeron Dual-Core T1400.

PCIe version2.0no data
PCI Express lanes16no 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.


Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Benchmark coverage: 19%

i7-640LM 5956
+119%
Celeron Dual-Core T1400 2725

Core i7-640LM outperforms Celeron Dual-Core T1400 by 119% in Cinebench 10 32-bit multi-core.

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Benchmark coverage: 18%

i7-640LM 21.43
+119%
Celeron Dual-Core T1400 47

Celeron Dual-Core T1400 outperforms Core i7-640LM by 119% in wPrime 32.

Advantages and disadvantages


Recency 7 January 2010 1 May 2008
Threads 4 2
Chip lithography 32 nm 65 nm
Power consumption (TDP) 25 Watt 35 Watt

We couldn't decide between Core i7-640LM and Celeron Dual-Core T1400. We've got no test results to judge.


Should you still have questions on choice between Core i7-640LM and Celeron Dual-Core T1400, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-640LM
Core i7-640LM
Intel Celeron Dual-Core T1400
Celeron Dual-Core T1400

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Questions and comments

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