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Intel Xeon W3520 vs Xeon X3350

The Intel Xeon W3520 @ 2.67GHz is newer than Intel Xeon X3350 @ 2.66GHz and is around 29% faster in multi-threaded (CPU Mark) testing. The Intel Xeon W3520 @ 2.67GHz is around 9% faster in single-thread testing. Also, Intel Xeon W3520 @ 2.67GHz uses around 31% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 568 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 Xeon W3520 @ 2.67GHz×Intel Xeon X3350 @ 2.66GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1366LGA775
CPU ClassServerServer
Clockspeed2.7 GHz2.7 GHz
Turbo SpeedUp to 2.9 GHzNot Supported
# of Physical Cores4 (Threads: 8)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 12.0MB, L3: 0MB
TDP130W95W
Yearly Running Cost$23.73$17.34
Other
First Seen on ChartQ1 2009Q4 2008
# of Samples54523
CPU Rank30663435
CPU Value117.838.2
Single Thread Rating(% diff. to max in group)1259(0.0%)1160(-7.9%)
CPU Mark(% diff. to max in group)2946(0.0%)2291(-22.2%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 14th of March 2026 - Higher results represent better performance
Intel Xeon W3520 @ 2.67GHz
2,946
Intel Xeon X3350 @ 2.66GHz
2,291
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 14th of March 2026 - Higher results represent better value
Intel Xeon W3520 @ 2.67GHz
117.8
Intel Xeon X3350 @ 2.66GHz
38.2
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 14th of March 2026 - Higher results represent better performance
Intel Xeon W3520 @ 2.67GHz
1,259
Intel Xeon X3350 @ 2.66GHz
1,160
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 Xeon W3520 @ 2.67GHz Intel Xeon X3350 @ 2.66GHz
Max TDP130W95W
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.