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AMD Athlon Dual 4450B vs Athlon 64 X2 Dual 5800+

The AMD Athlon Dual Core 4450B is newer than AMD Athlon 64 X2 Dual Core 5800+ also around 8% faster in multi-threaded (CPU Mark) testing, it is around 6% faster in single-thread testing. However, AMD Athlon Dual Core 4450B uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 109 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 Athlon Dual Core 4450B×AMD Athlon 64 X2 Dual Core 5800++ ADD
Price Search Online Search Online
Socket TypeAM2+NA2
CPU ClassDesktopDesktop
Clockspeed2.3 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L1: 256KB, L2: 1.0MB,
TDP45W89W
Yearly Running Cost$8.21$16.24
Other
First Seen on ChartQ1 2009Q1 2009
# of Samples8326
CPU Value22.921.8
Single Thread Rating(% diff. to max in group)7923(0.0%)7463(-5.8%)
CPU Mark(% diff. to max in group)711(0.0%)653(-8.1%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.
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 20th of April 2025 - Higher results represent better performance
AMD Athlon Dual Core 4450B
711
AMD Athlon 64 X2 Dual Core 5800+
653
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 20th of April 2025 - Higher results represent better value
AMD Athlon Dual Core 4450B
22.9
AMD Athlon 64 X2 Dual Core 5800+
21.8
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 20th of April 2025 - Higher results represent better performance
AMD Athlon Dual Core 4450B
792
AMD Athlon 64 X2 Dual Core 5800+
746
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 Athlon Dual Core 4450B AMD Athlon 64 X2 Dual Core 5800+
Max TDP45W89W
Power consumption per day (kWh)0.090.18
Running cost per day$0.022$0.044
Power consumption per year (kWh)32.965.0
Running cost per year$8.21$16.24
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.