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Intel Celeron B800 vs Celeron B820

The Intel Celeron B820 @ 1.70GHz is newer than Intel Celeron B800 @ 1.50GHz and is around 16% faster in multi-threaded (CPU Mark) testing. The Intel Celeron B820 @ 1.70GHz is around 14% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Laptop CPU Class. The values below were tabulated from a combined 641 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Celeron B800 @ 1.50GHz×Intel Celeron B820 @ 1.70GHz+ ADD
Price Search Online Search Online
Socket TypePGA988BPGA988B
CPU ClassLaptopLaptop
Clockspeed1.5 GHz1.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 0.5MB, L3: 2MBL1: 128KB, L2: 0.5MB, L3: 2MB
TDP35W35W
Yearly Running Cost$6.39$6.39
Other
First Seen on ChartQ3 2011Q3 2012
# of Samples314327
CPU Rank48674712
CPU Value25.727.5
Single Thread Rating(% diff. to max in group)652(-12.2%)742(0.0%)
CPU Mark(% diff. to max in group)695(-13.6%)804(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 15th of March 2026 - Higher results represent better performance
Intel Celeron B800 @ 1.50GHz
695
Intel Celeron B820 @ 1.70GHz
804
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 15th of March 2026 - Higher results represent better value
Intel Celeron B800 @ 1.50GHz
25.7
Intel Celeron B820 @ 1.70GHz
27.5
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 15th of March 2026 - Higher results represent better performance
Intel Celeron B800 @ 1.50GHz
652
Intel Celeron B820 @ 1.70GHz
742
PassMark Software © 2008-2026
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Celeron B800 @ 1.50GHz Intel Celeron B820 @ 1.70GHz
Max TDP35W35W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.