A8-4555M vs i7-2640M

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Aggregate performance score

Core i7-2640M
2011
2 cores / 4 threads, 35 Watt
1.55
+84.5%
A8-4555M
2012
4 cores / 4 threads, 19 Watt
0.84

Core i7-2640M outperforms A8-4555M by an impressive 85% based on our aggregate benchmark results.

Primary details

Comparing Core i7-2640M and A8-4555M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking21312587
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7AMD A-Series
Power efficiency4.194.18
Architecture codenameSandy Bridge (2011−2013)Trinity (2012−2013)
Release date4 September 2011 (13 years ago)27 September 2012 (12 years ago)
Launch price (MSRP)$346no data

Detailed specifications

Core i7-2640M and A8-4555M 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)4 (Quad-Core)
Threads44
Base clock speed2.8 GHz1.6 GHz
Boost clock speed3.5 GHz2.4 GHz
Bus typeDMI 2.0no data
Bus rate4 × 5 GT/sno data
Multiplier28no data
L1 cache128 KB192 KB
L2 cache512 KB4 MB (shared)
L3 cache4 MB0 KB
Chip lithography32 nm32 nm
Die size149 mm2246 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data100 °C
Number of transistors624 Million1,178 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-2640M and A8-4555M 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
SocketFCBGA1023,PPGA988FP2
Power consumption (TDP)35 Watt19 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2640M and A8-4555M. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA
AES-NI++
FMA++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)+no data
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Demand Based Switching-no data
FDI+no data
Fast Memory Access+no data

Security technologies

Core i7-2640M and A8-4555M technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Identity Protection+-
Anti-Theft+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2640M and A8-4555M are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2640M and A8-4555M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3unknown Dual-channel
Maximum memory size16 GBno data
Max memory channels2no data
Maximum memory bandwidth228.707 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 3000AMD Radeon HD 7600G (320 - 424 MHz)
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.3 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-2640M and A8-4555M integrated GPUs.

Number of displays supported2no data
eDP+no data
DisplayPort+-
HDMI+-
SDVO+no data
CRT+no data

Peripherals

Specifications and connection of peripherals supported by Core i7-2640M and A8-4555M.

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.


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.

i7-2640M 1.55
+84.5%
A8-4555M 0.84

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.

i7-2640M 2461
+84.9%
A8-4555M 1331

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.

i7-2640M 516
+102%
A8-4555M 255

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.

i7-2640M 1022
+85.8%
A8-4555M 550

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.

i7-2640M 4443
+186%
A8-4555M 1555

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.

i7-2640M 9778
+160%
A8-4555M 3757

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.

i7-2640M 3927
+109%
A8-4555M 1877

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.

i7-2640M 15.14
+166%
A8-4555M 40.21

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.

i7-2640M 3
+156%
A8-4555M 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.

i7-2640M 1.36
+209%
A8-4555M 0.44

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.

i7-2640M 1.6
+97.5%
A8-4555M 0.8

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.

i7-2640M 2620
+35.3%
A8-4555M 1937

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-2640M 17
+304%
A8-4555M 4

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-2640M 89
+327%
A8-4555M 21

Gaming performance

Pros & cons summary


Performance score 1.55 0.84
Integrated graphics card 0.66 0.85
Recency 4 September 2011 27 September 2012
Physical cores 2 4
Power consumption (TDP) 35 Watt 19 Watt

i7-2640M has a 84.5% higher aggregate performance score.

A8-4555M, on the other hand, has 28.8% faster integrated GPU, an age advantage of 1 year, 100% more physical cores, and 84.2% lower power consumption.

The Core i7-2640M is our recommended choice as it beats the A8-4555M in performance tests.


Should you still have questions on choice between Core i7-2640M and A8-4555M, ask them in Comments section, and we shall answer.

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Intel Core i7-2640M
Core i7-2640M
AMD A8-4555M
A8-4555M

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