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Intel Celeron 877 vs Celeron B815

The Intel Celeron 877 @ 1.40GHz is newer than Intel Celeron B815 @ 1.60GHz, while the multi-threaded (CPU Mark) is simliar, Intel Celeron B815 @ 1.60GHz is around 7% faster in single-thread testing. However, Intel Celeron 877 @ 1.40GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 439 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 877 @ 1.40GHz×Intel Celeron B815 @ 1.60GHz+ ADD
Price Search Online Search Online
Socket TypeBGA1023PGA988B
CPU ClassLaptopLaptop
Clockspeed1.4 GHz1.6 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L3: 2MBL1: 256KB, L2: 1.0MB, L3: 2MB
TDP17W35W
Yearly Running Cost$3.10$6.39
Other
First Seen on ChartQ2 2012Q1 2012
# of Samples150289
CPU Value0.026.9
Single Thread Rating(% diff. to max in group)648(-6.8%)695(0.0%)
CPU Mark(% diff. to max in group)700(-3.6%)726(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Celeron 877 @ 1.40GHz
700
Intel Celeron B815 @ 1.60GHz
726
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 6th of April 2025 - Higher results represent better value
Intel Celeron 877 @ 1.40GHz
NA
Intel Celeron B815 @ 1.60GHz
26.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Celeron 877 @ 1.40GHz
648
Intel Celeron B815 @ 1.60GHz
695
PassMark Software © 2008-2025
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 877 @ 1.40GHz Intel Celeron B815 @ 1.60GHz
Max TDP17W35W
Power consumption per day (kWh)0.030.07
Running cost per day$0.009$0.018
Power consumption per year (kWh)12.425.6
Running cost per year$3.10$6.39
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.