Ultra 5 245KF vs Celeron 857

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Aggregate performance score

Celeron 857
2011
2 cores / 2 threads, 17 Watt
0.36
Core Ultra 5 245KF
2024
14 cores / 14 threads, 125 Watt
27.54
+7550%

Core Ultra 5 245KF outperforms Celeron 857 by a whopping 7550% based on our aggregate benchmark results.

Primary details

Comparing Celeron 857 and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3049176
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data81.94
Market segmentLaptopDesktop processor
SeriesIntel Celeronno data
Power efficiency1.9920.74
Architecture codenameSandy Bridge (2011−2013)Arrow Lake-S (2024−2025)
Release date1 July 2011 (13 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)$134$294

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Celeron 857 and Core Ultra 5 245KF 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)14 (Tetradeca-Core)
Threads214
Base clock speed1.2 GHz4.2 GHz
Boost clock speed1.2 GHz5.2 GHz
Bus typeDMI 2.0no data
Bus rate4 × 5 GT/sno data
Multiplier12no data
L1 cache128 KB112 KB (per core)
L2 cache512 KB3 MB (per core)
L3 cache2 MB (shared)24 MB (shared)
Chip lithography32 nm3 nm
Die size131 mm2243 mm2
Maximum core temperature100 °Cno data
Number of transistors504 million17,800 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Celeron 857 and Core Ultra 5 245KF 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
SocketFCBGA10231851
Power consumption (TDP)17 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 857 and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2no data
AES-NI-+
FMA+-
AVX-+
Enhanced SpeedStep (EIST)++
My WiFi-no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
TSX-+
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

Celeron 857 and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 857 and Core Ultra 5 245KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 857 and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5
Maximum memory size16 GBno data
Max memory channels2no data
Maximum memory bandwidth21.335 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics for 2nd Generation Intel ProcessorsN/A
Graphics max frequency1 GHzno data

Graphics interfaces

Available interfaces and connections of Celeron 857 and Core Ultra 5 245KF 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 Celeron 857 and Core Ultra 5 245KF.

PCIe version2.05.0
PCI Express lanes1620

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.

Celeron 857 0.36
Ultra 5 245KF 27.54
+7550%

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.

Celeron 857 569
Ultra 5 245KF 43751
+7589%

Gaming performance

Pros & cons summary


Performance score 0.36 27.54
Recency 1 July 2011 24 October 2024
Physical cores 2 14
Threads 2 14
Chip lithography 32 nm 3 nm
Power consumption (TDP) 17 Watt 125 Watt

Celeron 857 has 635.3% lower power consumption.

Ultra 5 245KF, on the other hand, has a 7550% higher aggregate performance score, an age advantage of 13 years, 600% more physical cores and 600% more threads, and a 966.7% more advanced lithography process.

The Core Ultra 5 245KF is our recommended choice as it beats the Celeron 857 in performance tests.

Be aware that Celeron 857 is a notebook processor while Core Ultra 5 245KF is a desktop one.


Should you still have questions on choice between Celeron 857 and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.

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Intel Celeron 857
Celeron 857
Intel Core Ultra 5 245KF
Core Ultra 5 245KF

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Community ratings

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Questions & comments

Here you can ask a question about Celeron 857 or Core Ultra 5 245KF, agree or disagree with our judgements, or report an error or mismatch.