CPUBoss Review Our evaluation of X3440 vs 860S among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS
Front view of Intel Core i7 860S

Intel Core i7 860S

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X3440

Reasons to consider the
Intel Xeon X3440

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Significantly better overclocked clock speed (Air) 3.84 GHz vs 2.53 GHz More than 50% better overclocked clock speed (Air)
Better performance per dollar 0.71 pt/$ vs 0.54 pt/$ More than 30% better performance per dollar
Much better overclocked clock speed (Water) 4.2 GHz vs 2.53 GHz More than 65% better overclocked clock speed (Water)
Front view of Intel Core i7 860S

Reasons to consider the
Intel Core i7 860S

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Higher turbo clock speed 3.46 GHz vs 2.93 GHz Around 20% higher turbo clock speed
Lower typical power consumption 66.63W vs 77.19W Around 15% lower typical power consumption
Better geekbench 3 Multi-Core score 8,240 vs 6,898 Around 20% better geekbench 3 Multi-Core score
Better PassMark (Single core) score 1,335 vs 1,036 Around 30% better PassMark (Single core) score
Slightly better performance per watt 2.39 pt/W vs 1.72 pt/W Around 40% better performance per watt
Lower annual home energy cost 19.75 $/year vs 22.89 $/year Around 15% lower annual home energy cost
Lower annual commercial energy cost 71.83 $/year vs 83.22 $/year Around 15% lower annual commercial energy cost
Newer Jan, 2010 vs Sep, 2009 Release date 3 months later

Benchmarks Real world tests of Xeon X3440 vs Core i7 860S

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3440
6,898
Core i7 860S
8,240

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3440
1,726
Core i7 860S
2,187

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3440
108,800 MB/s
Core i7 860S
137,300 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X3440
6,463
Core i7 860S
6,831

GeekBench

Xeon X3440
9,536
Core i7 860S
6,831

PassMark Data courtesy Passmark

Xeon X3440
4,559
Core i7 860S
4,776

PassMark (Single Core)

Xeon X3440
1,036
Core i7 860S
1,335

Specifications Full list of technical specs

summary

Xeon X3440  vs
Core i7 860S 
Clock speed 2.53 GHz 2.53 GHz
Turbo clock speed 2.93 GHz 3.46 GHz
Cores Quad core Quad core
Socket type
LGA 1156

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 82W
Annual home energy cost 22.89 $/year 19.75 $/year
Annual commercial energy cost 83.22 $/year 71.83 $/year
Performance per watt 1.72 pt/W 2.39 pt/W
Typical power consumption 77.19W 66.63W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 16,384 MB

details

Xeon X3440  vs
Core i7 860S 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 45 nm
Transistor count 774,000,000 774,000,000
Max CPUs 1 1
Clock multiplier 19 19
Voltage range 0.65 - 1.4V 0.65 - 1.4V

overclocking

Overclock popularity 5 8
Overclocked clock speed 3.84 GHz 2.53 GHz
Overclocked clock speed (Water) 4.2 GHz 2.53 GHz
Overclocked clock speed (Air) 3.84 GHz 2.53 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s
Intel Xeon X3440
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Intel Core i7 860S
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