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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Xeon E3-1275 v3 vs Xeon E3-1281 v3

The Intel Xeon E3-1281 v3 @ 3.70GHz is newer than Intel Xeon E3-1275 v3 @ 3.50GHz is around 6% faster in single-thread testing. Also, Intel Xeon E3-1275 v3 @ 3.50GHz uses around 15% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 141 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 E3-1275 v3 @ 3.50GHz×Intel Xeon E3-1281 v3 @ 3.70GHz+ ADD
Price $443.41 - BUY Search Online
Socket TypeLGA1150LGA1150
CPU ClassServerServer
Clockspeed3.5 GHz3.7 GHz
Turbo SpeedUp to 3.9 GHzUp to 4.1 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP95W82W
Yearly Running Cost$17.34$14.97
Other
First Seen on ChartQ2 2013Q2 2015
# of Samples8655
CPU Value16.213.8
Single Thread Rating(% diff. to max in group)2201(-5.7%)2334(0.0%)
CPU Mark(% diff. to max in group)7195(-4.4%)7528(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of April 2025 - Higher results represent better performance
Intel Xeon E3-1275 v3 @ 3.50GHz
7,195
Intel Xeon E3-1281 v3 @ 3.70GHz
7,528
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 22nd of April 2025 - Higher results represent better value
Intel Xeon E3-1275 v3 @ 3.50GHz
16.2
Intel Xeon E3-1281 v3 @ 3.70GHz
13.8
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 22nd of April 2025 - Higher results represent better performance
Intel Xeon E3-1275 v3 @ 3.50GHz
2,201
Intel Xeon E3-1281 v3 @ 3.70GHz
2,334
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 Xeon E3-1275 v3 @ 3.50GHz Intel Xeon E3-1281 v3 @ 3.70GHz
Max TDP95W82W
Power consumption per day (kWh)0.190.16
Running cost per day$0.048$0.041
Power consumption per year (kWh)69.359.9
Running cost per year$17.34$14.96
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.