AMD Phenom X3 8400 

Released March, 2008
  • 2.1 GHz
  • Tri core
4.7 Out of 10

CPUBoss Review Our evaluation of the AMD Phenom X3 8400 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

Phenom X3 8400
4.2
FX 8320
7.0
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Phenom X3 8400
4.4
FX 8320
6.6
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Phenom X3 8400
0.0
FX 8320
0.0
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Phenom X3 8400
0.0
FX 8320
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Phenom X3 8400
5.4
FX 8320
5.6
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Phenom X3 8400
n.d.
FX 8320
6.1
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

4.7

CPUBoss Score

Combination of all six facets

Phenom X3 8400
4.7
FX 8320
5.7

Benchmarks Real world tests of the AMD Phenom X3 8400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Phenom X3 8400
2,716
FX 8320
10,352

GeekBench 3 (Single core) Data courtesy Primate Labs

Phenom X3 8400
948
FX 8320
2,066

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom X3 8400
79,150 MB/s
FX 8320
2,320,000 MB/s
Core2 Quad Q6600
102,800 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Phenom X3 8400
2,605
FX 8320
9,798

GeekBench

Phenom X3 8400
2,909
FX 8320
11,631

PassMark Data courtesy Passmark

Phenom X3 8400
1,695
FX 8320
8,183

PassMark (Single Core)

Phenom X3 8400
714
FX 8320
1,402

Specifications Full list of technical specs

summary

Clock speed 2.1 GHz
Cores Tri core
Socket type AM2+
Is unlocked No

features

Has a NX bit Yes
Has virtualization support Yes
Instruction set extensions
  1. SSE4a
  2. 3DNow!
  3. SSE2
  4. SSE
  5. MMX
  6. SSE3
Supports dynamic frequency scaling Yes

power consumption

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

bus

Clock speed 1,800 MHz

details

Architecture x86-64
Threads 3 threads
L2 cache 2 MB
L2 cache per core 0.67 MB/core
L3 cache 2 MB
L3 cache per core 0.67 MB/core
Manufacture process 65 nm
Max CPUs 1
Operating temperature Unknown - 70°C

overclocking

Overclocked clock speed 2.44 GHz
Overclocked clock speed (Water) 2.1 GHz
PassMark (Overclocked) 1,700.9
Overclocked clock speed (Air) 2.44 GHz

integrated graphics

GPU None
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