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AMD Phenom II N640 Dual- vs Turion X2 Ultra Dual- Mobile ZM-85

The AMD Phenom II N640 Dual-Core is newer than AMD Turion X2 Ultra Dual-Core Mobile ZM-85 and is around 37% faster in multi-threaded (CPU Mark) testing. The AMD Phenom II N640 Dual-Core is around 30% 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 71 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.

×AMD Phenom II N640 Dual-Core×AMD Turion X2 Ultra Dual-Core Mobile ZM-85+ ADD
Price Search Online Search Online
Socket TypeS1S1
CPU ClassLaptopLaptop
Clockspeed2.9 GHz2.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 2.0MB, L1: 256KB, L2: 2.0MB,
TDP35W35W
Yearly Running Cost$6.39$6.39
Other
First Seen on ChartQ4 2010Q3 2009
# of Samples5813
CPU Value20.718.4
Single Thread Rating(% diff. to max in group)1121(0.0%)8643(-23.0%)
CPU Mark(% diff. to max in group)1135(0.0%)828(-27.1%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 12th of December 2025 - Higher results represent better performance
AMD Phenom II N640 Dual-Core
1,135
AMD Turion X2 Ultra Dual-Core Mobile ZM-85
828
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 12th of December 2025 - Higher results represent better value
AMD Phenom II N640 Dual-Core
20.7
AMD Turion X2 Ultra Dual-Core Mobile ZM-85
18.4
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 12th of December 2025 - Higher results represent better performance
AMD Phenom II N640 Dual-Core
1,121
AMD Turion X2 Ultra Dual-Core Mobile ZM-85
864
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.
AMD Phenom II N640 Dual-Core AMD Turion X2 Ultra Dual-Core Mobile ZM-85
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.