i7-1255U vs A8-6600K

VS

Aggregate performance score

A8-6600K
2013
4 cores / 4 threads, 100 Watt
1.89
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
+351%

Core i7-1255U outperforms A8-6600K by a whopping 351% based on our aggregate benchmark results.

Primary details

Comparing A8-6600K and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1984896
Place by popularitynot in top-10074
Cost-effectiveness evaluation0.31no data
Market segmentDesktop processorLaptop
SeriesAMD A-Series (Desktop)Intel Alder Lake-M
Power efficiency1.7953.82
Architecture codenameRichland (2013−2014)Alder Lake-U (2022)
Release date1 June 2013 (11 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$142no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

A8-6600K and Core i7-1255U 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 cores4 (Quad-Core)10 (Deca-Core)
Threads412
Base clock speed3.9 GHz1.7 GHz
Boost clock speed4.2 GHz4.7 GHz
L1 cache192 KB80K (per core)
L2 cache4096 KB1.25 MB (per core)
L3 cache0 KB12 MB (shared)
Chip lithography32 nm10 nm
Die size246 mm2no data
Maximum core temperature74 °C100 °C
Maximum case temperature (TCase)74 °Cno data
Number of transistors1,178 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on A8-6600K and Core i7-1255U 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 configuration11
SocketFM2Intel BGA 1744
Power consumption (TDP)100 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-6600K and Core i7-1255U. You'll probably need this information if you require some particular technology.

AES-NI++
FMAFMA4+
AVXAVX+
PowerNow+-
PowerGating+-
VirusProtect+-
Enhanced SpeedStep (EIST)no data+
TSX-+

Security technologies

A8-6600K and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-6600K and Core i7-1255U are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
IOMMU 2.0+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-6600K and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1866DDR4, DDR5
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon HD 8570DIntel Iris Xe Graphics G7 96EUs ( - 1250 MHz)
จำนวนพาธไลน์256no data
Enduro+-
Switchable graphics+-
UVD+-
VCE+-

Graphics interfaces

Available interfaces and connections of A8-6600K and Core i7-1255U integrated GPUs.

DisplayPort+-
HDMI+-

Graphics API support

APIs supported by A8-6600K and Core i7-1255U integrated GPUs, sometimes API versions are included.

DirectXDirectX® 11no data

Peripherals

Specifications and connection of peripherals supported by A8-6600K and Core i7-1255U.

PCIe version2.04.0
PCI Express lanesno data20

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.

A8-6600K 1.89
i7-1255U 8.53
+351%

  • Passmark

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.

A8-6600K 2998
i7-1255U 13546
+352%

Gaming performance

Pros & cons summary


Performance score 1.89 8.53
Integrated graphics card 1.13 9.48
Recency 1 June 2013 23 February 2022
Physical cores 4 10
Threads 4 12
Chip lithography 32 nm 10 nm
Power consumption (TDP) 100 Watt 15 Watt

i7-1255U has a 351.3% higher aggregate performance score, 738.9% faster integrated GPU, an age advantage of 8 years, 150% more physical cores and 200% more threads, a 220% more advanced lithography process, and 566.7% lower power consumption.

The Core i7-1255U is our recommended choice as it beats the A8-6600K in performance tests.

Note that A8-6600K is a desktop processor while Core i7-1255U is a notebook one.


Should you still have questions on choice between A8-6600K and Core i7-1255U, ask them in Comments section, and we shall answer.

Vote for your favorite

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


AMD A8-6600K
A8-6600K
Intel Core i7-1255U
Core i7-1255U

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Community ratings

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Questions & comments

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