IntelOutdated for demanding workloadsLaptop

Intel Celeron B820 @ 1.70GHz

Explore Intel Celeron B820 @ 1.70GHz technical reviews, specifications and benchmark results, with practical context for laptop performance, efficiency and upgrade research.

Last updated: 2026-10-20
2.3/ 10
Technical rating

Outdated for demanding workloads

Intel Celeron B820 @ 1.70GHz is a Laptop processor with 2 cores and 2 threads. Its base clock is 1.7 GHz. It records a PassMark CPU Mark of 809 and a single-thread rating of 745. Its stated TDP is 35 W.

CPU Mark809
330 samples
Single Thread745
Overall rank#4,938
of 6,054
Reference price$29.29

Technical assessment

A summary based on specifications and results.

Outdated for demanding workloads
2.3Outdated for demanding workloads

Intel Celeron B820 @ 1.70GHz is a Laptop processor with 2 cores and 2 threads. Its base clock is 1.7 GHz. It records a PassMark CPU Mark of 809 and a single-thread rating of 745. Its stated TDP is 35 W.

Specification context

What do these specifications mean in practice?

The Intel Celeron B820 @ 1.70GHz is a Laptop released in 2012. Recorded specifications include 2 cores and 2 threads, a 35 W reference TDP, a 809 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 809 CPU Mark is a broad overall-performance measure, while the 745 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 PGA988B. 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 35 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 B820 @ 1.70GHz specifications?

The main recorded details are 2 cores and 2 threads, a 35 W reference TDP, a 809 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Celeron B820 @ 1.70GHz 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 B820 @ 1.70GHz?

Start with PGA988B 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 B820 @ 1.70GHz use?

The recorded reference TDP is 35 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 B820 @ 1.70GHzThis CPU809 points
05AMD A4-4355M APUAMD807 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

04AMD A4-4355M APUAMD802 points
05Intel Celeron B820 @ 1.70GHzThis CPU745 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01AMD A4-4355M APUAMD47.5 Mark/W
03Intel Celeron B820 @ 1.70GHzThis CPU23.1 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
15,463.00
Data EncryptionMBytes/Sec
159.10
Extended InstructionsMillion Matrices/Sec
545.00
Find Prime NumbersMillion Primes/Sec
7.00
Floating Point MathMOps/Sec
1,677.00
Integer MathMOps/Sec
3,208.00
PhysicsFrames/Sec
117.00
Random String SortingThousand Strings/Sec
2,056.00

Core specifications

BrandIntel
CategoryLaptop
Release year2012
SocketPGA988B
Cores / threads2 / 2
Base clock1.70 GHz
Max turbo—
TDP35 W
Integrated graphics—

Memory support

—
Memory type—
Official speed—
Maximum capacity—

Cache hierarchy

L1I2 x 32 KB
L1D2 x 32 KB
L22 x 256 KB
L32 MB