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Differences What are the advantages of each

Front view of AMD Phenom X3 8400

Reasons to consider the
AMD Phenom X3 8400

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CPUBoss is not aware of any important advantages of the Phenom X3 8400 vs the Athlon X2 7750.

Front view of AMD Athlon X2 7750

Reasons to consider the
AMD Athlon X2 7750

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking

Benchmarks Real world tests of Phenom X3 8400 vs Athlon X2 7750

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom X3 8400
79,150 MB/s
Athlon X2 7750
101,750 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom X3 8400  vs
Athlon X2 7750 
Clock speed 2.1 GHz 2.7 GHz
Cores Tri core Dual core
Socket type
AM2+
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 95W
Annual home energy cost 22.89 $/year 22.89 $/year
Annual commercial energy cost 83.22 $/year 83.22 $/year
Performance per watt 0.91 pt/W 1.05 pt/W
Typical power consumption 77.19W 77.19W

details

Phenom X3 8400  vs
Athlon X2 7750 
Architecture x86-64 x86-64
Threads 3 2
L2 cache 2 MB 1 MB
L2 cache per core 0.67 MB/core 0.5 MB/core
L3 cache 2 MB 2 MB
L3 cache per core 0.67 MB/core 1 MB/core
Manufacture process 65 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 73°C

overclocking

Overclocked clock speed 2.46 GHz 3.07 GHz
Overclocked clock speed (Water) 2.75 GHz 3.38 GHz
PassMark (Overclocked) 1,700.9 1,848.4
Overclocked clock speed (Air) 2.46 GHz 3.07 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
AMD Phenom X3 8400
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AMD Athlon X2 7750
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