Ultra 5 245K vs A8-3870K

VS

Aggregate performance score

A8-3870K
2011
4 cores / 4 threads, 100 Watt
1.47
Core Ultra 5 245K
2024
14 cores / 14 threads, 125 Watt
27.74
+1787%

Core Ultra 5 245K outperforms A8-3870K by a whopping 1787% based on our aggregate benchmark results.

Primary details

Comparing A8-3870K and Core Ultra 5 245K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2175174
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data78.80
Market segmentDesktop processorDesktop processor
Power efficiency1.3921.00
Architecture codenameLlano (2011−2012)Arrow Lake-S (2024−2025)
Release date20 December 2011 (13 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)no data$309

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

A8-3870K and Core Ultra 5 245K 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)14 (Tetradeca-Core)
Threads414
Base clock speed3 GHz4.2 GHz
Boost clock speed3 GHz5.2 GHz
Bus rateno data159 MHz
L1 cache128 KB (per core)112 KB (per core)
L2 cache1 MB (per core)3 MB (per core)
L3 cache0 KB24 MB (shared)
Chip lithography32 nm3 nm
Die size228 mm2243 mm2
Number of transistors1,178 million17,800 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier++

Compatibility

Information on A8-3870K and Core Ultra 5 245K 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
SocketFM11851
Power consumption (TDP)100 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-3870K and Core Ultra 5 245K. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)no data+
TSX-+
SIPP-+

Security technologies

A8-3870K and Core Ultra 5 245K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-3870K and Core Ultra 5 245K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-3870K and Core Ultra 5 245K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 6550DArc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by A8-3870K and Core Ultra 5 245K.

PCIe versionno data5.0
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.

A8-3870K 1.47
Ultra 5 245K 27.74
+1787%

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.

A8-3870K 2328
Ultra 5 245K 44059
+1793%

Gaming performance

Pros & cons summary


Performance score 1.47 27.74
Recency 20 December 2011 24 October 2024
Physical cores 4 14
Threads 4 14
Chip lithography 32 nm 3 nm
Power consumption (TDP) 100 Watt 125 Watt

A8-3870K has 25% lower power consumption.

Ultra 5 245K, on the other hand, has a 1787.1% higher aggregate performance score, an age advantage of 12 years, 250% more physical cores and 250% more threads, and a 966.7% more advanced lithography process.

The Core Ultra 5 245K is our recommended choice as it beats the A8-3870K in performance tests.


Should you still have questions on choice between A8-3870K and Core Ultra 5 245K, ask them in Comments section, and we shall answer.

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AMD A8-3870K
A8-3870K
Intel Core Ultra 5 245K
Core Ultra 5 245K

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.1 214 votes

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3.1 27 votes

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Questions & comments

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