IntelOutdated for demanding workloadsLaptop

Intel Celeron 857 @ 1.20GHz

Explore Intel Celeron 857 @ 1.20GHz technical reviews, specifications and benchmark results, with practical context for laptop performance, efficiency and upgrade research.

Last updated: 2026-10-20
1.9/ 10
Technical rating

Outdated for demanding workloads

Intel Celeron 857 @ 1.20GHz is a Laptop processor with 2 cores and 2 threads. Its base clock is 1.2 GHz. It records a PassMark CPU Mark of 569 and a single-thread rating of 476. Its stated TDP is 17 W.

CPU Mark569
11 samples
Single Thread476
Overall rank#5,265
of 6,054
Reference price—

Technical assessment

A summary based on specifications and results.

Outdated for demanding workloads
1.9Outdated for demanding workloads

Intel Celeron 857 @ 1.20GHz is a Laptop processor with 2 cores and 2 threads. Its base clock is 1.2 GHz. It records a PassMark CPU Mark of 569 and a single-thread rating of 476. Its stated TDP is 17 W.

Specification context

What do these specifications mean in practice?

The Intel Celeron 857 @ 1.20GHz is a Laptop released in 2011. Recorded specifications include 2 cores and 2 threads, a 17 W reference TDP, a 569 CPU Mark. Use these figures to understand its position, then compare the results with your software and the complete platform.

Reading guide

Read the performance results

The 569 CPU Mark is a broad overall-performance measure, while the 476 single-thread result adds context for less-parallel work. Compare the nearby alternatives on this page and do not treat one score as a verdict for every application.

Platform and compatibility

It uses socket BGA1023. A matching socket is only the first check; confirm the official motherboard CPU-support list, BIOS revision and board power limits.

Memory and power

The 17 W TDP helps size the cooling class, but it is not the same as peak wall-power consumption.

FAQ

Common processor questions

What are the key Intel Celeron 857 @ 1.20GHz specifications?

The main recorded details are 2 cores and 2 threads, a 17 W reference TDP, a 569 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Celeron 857 @ 1.20GHz good for gaming?

The product name or CPU Mark alone cannot answer that. Check single-thread performance, core count, the target graphics card, gaming resolution and results from the games you play.

Which motherboards support the Intel Celeron 857 @ 1.20GHz?

Start with BGA1023 motherboards, then confirm the official CPU-support list and required BIOS revision for the exact board before buying.

How much power does the Intel Celeron 857 @ 1.20GHz use?

The recorded reference TDP is 17 W. Real consumption can be lower or higher depending on power limits, motherboard, workload and cooling.

This guidance interprets recorded specifications and results; it does not claim hands-on device testing. Results can vary with motherboard, power, memory and cooling.

Multi-axis comparison

How does this processor compare?

A direct comparison with nearby processors from the same brand and a similar core count.

5 CPU

Overall and multi-core performance

A higher CPU Mark indicates stronger overall performance.

01Intel Celeron 857 @ 1.20GHzThis CPU569 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

04Intel Celeron 857 @ 1.20GHzThis CPU476 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01Intel Atom C2358 @ 1.74GHzIntel80.3 Mark/W
02Intel Celeron 857 @ 1.20GHzThis CPU33.5 Mark/W

Bars are relative to the processors shown here, not a global ranking of every CPU.

Detailed benchmark results

Snapshot from 2026-10-20

Data CompressionKBytes/Sec
10,651.00
Data EncryptionMBytes/Sec
92.00
Extended InstructionsMillion Matrices/Sec
323.00
Find Prime NumbersMillion Primes/Sec
5.00
Floating Point MathMOps/Sec
1,159.00
Integer MathMOps/Sec
2,292.00
PhysicsFrames/Sec
85.00
Random String SortingThousand Strings/Sec
1,439.00

Core specifications

BrandIntel
CategoryLaptop
Release year2011
SocketBGA1023
Cores / threads2 / 2
Base clock1.20 GHz
Max turbo—
TDP17 W
Integrated graphics—

Memory support

—
Memory type—
Official speed—
Maximum capacity—

Cache hierarchy

L1I4 x 32 KB
L1D4 x 32 KB
L24 x 256 KB
L32 MB