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Intel Pentium 957 vs Celeron B815

The Intel Celeron B815 @ 1.60GHz is newer than Intel Pentium 957 @ 1.20GHz also around 14% faster in multi-threaded (CPU Mark) testing, it is around 17% faster in single-thread testing. However, Intel Pentium 957 @ 1.20GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 292 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 Pentium 957 @ 1.20GHz×Intel Celeron B815 @ 1.60GHz+ ADD
Price Search Online Search Online
Socket TypeFCBGA1023PGA988B
CPU ClassLaptopLaptop
Clockspeed1.2 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 ChartQ3 2011Q1 2012
# of Samples3289
CPU Value4.626.9
Single Thread Rating(% diff. to max in group)574(-17.5%)695(0.0%)
CPU Mark(% diff. to max in group)622(-14.3%)726(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Pentium 957 @ 1.20GHz
622
Intel Celeron B815 @ 1.60GHz
726
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 26th of February 2025 - Higher results represent better value
Intel Pentium 957 @ 1.20GHz
4.6
Intel Celeron B815 @ 1.60GHz
26.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Pentium 957 @ 1.20GHz
574
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 Pentium 957 @ 1.20GHz Intel Celeron B815 @ 1.60GHz
Max TDP17W35W
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.