Celeron 847 vs i7-640M

VS

Aggregate performance score

Core i7-640M
2010
2 cores / 4 threads, 35 Watt
1.31
+337%
Celeron 847
2011
2 cores / 2 threads, 17 Watt
0.30

Core i7-640M outperforms Celeron 847 by a whopping 337% based on our aggregate benchmark results.

Primary details

Comparing Core i7-640M and Celeron 847 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22773113
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Celeron
Power efficiency3.541.67
Architecture codenameArrandale (2010−2011)Sandy Bridge (2011−2013)
Release date1 September 2010 (14 years ago)19 June 2011 (13 years ago)
Launch price (MSRP)$346$134

Detailed specifications

Core i7-640M and Celeron 847 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 speed2.8 GHz1.1 GHz
Boost clock speed3.46 GHz1.1 GHz
Bus typeDMI 1.0DMI 2.0
Bus rate1 × 2.5 GT/s4 × 5 GT/s
Multiplier2111
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)256K (per core)
L3 cache4 MB (shared)2 MB (shared)
Chip lithography32 nm32 nm
Die size81+114 mm2131 mm2
Maximum core temperature105 °C100 °C
Number of transistors384 million504 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-640M and Celeron 847 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketBGA1288,PGA988FCBGA1023
Power consumption (TDP)35 Watt17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640M and Celeron 847. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-640M and Celeron 847 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640M and Celeron 847 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640M and Celeron 847. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size8 GB16 GB
Max memory channels22
Maximum memory bandwidth17.051 GB/s21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics for Previous Generation Intel ProcessorsIntel HD Graphics (Sandy Bridge) (350 - 800 MHz)
Clear Video+no data
Clear Video HD+-
Graphics max frequency766 MHz800 MHz

Graphics interfaces

Available interfaces and connections of Core i7-640M and Celeron 847 integrated GPUs.

Number of displays supported22
eDPno data+
DisplayPort-+
HDMI-+
SDVOno data+
CRTno data+

Peripherals

Specifications and connection of peripherals supported by Core i7-640M and Celeron 847.

PCIe version2.02.0
PCI Express lanes1616

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.

i7-640M 1.31
+337%
Celeron 847 0.30

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.

i7-640M 2073
+333%
Celeron 847 479

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.

i7-640M 427
+175%
Celeron 847 155

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.

i7-640M 807
+207%
Celeron 847 263

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-640M 3708
+192%
Celeron 847 1270

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.

i7-640M 7906
+228%
Celeron 847 2408

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-640M 3307
+233%
Celeron 847 993

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.

i7-640M 17.62
+356%
Celeron 847 80.4

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-640M 3
+286%
Celeron 847 1

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-640M 1.06
+159%
Celeron 847 0.41

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-640M 1.3
+1525%
Celeron 847 0.1

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-640M 1763
+114%
Celeron 847 824

Gaming performance

Pros & cons summary


Performance score 1.31 0.30
Integrated graphics card 0.77 0.34
Recency 1 September 2010 19 June 2011
Threads 4 2
Power consumption (TDP) 35 Watt 17 Watt

i7-640M has a 336.7% higher aggregate performance score, 126.5% faster integrated GPU, and 100% more threads.

Celeron 847, on the other hand, has an age advantage of 9 months, and 105.9% lower power consumption.

The Core i7-640M is our recommended choice as it beats the Celeron 847 in performance tests.


Should you still have questions on choice between Core i7-640M and Celeron 847, ask them in Comments section, and we shall answer.

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Intel Core i7-640M
Core i7-640M
Intel Celeron 847
Celeron 847

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