AMD A8 3870K 

Released December, 2011
  • 3 GHz
  • Quad core
  • Unlocked

Benchmarks Real world tests of the AMD A8 3870K

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

A8 3870K
46.8 mHash/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

A8 3870K
0.62 fps

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

A8 3870K
2,346

Sky Diver Data courtesy FutureMark

A8 3870K
2,532

Cloud Gate Data courtesy FutureMark

A8 3870K
4,726

GeekBench 3 (Multi-core) Data courtesy Primate Labs

A8 3870K
5,602

GeekBench 3 (Single core) Data courtesy Primate Labs

A8 3870K
1,597

GeekBench 3 (AES single core) Data courtesy Primate Labs

A8 3870K
126,200 MB/s
Athlon II X4 651
125,700 MB/s

Reviews Word on the street for the AMD A8 3870K


8.0

8.0

9.7

Overall

8.8 Out of 10

Specifications Full list of technical specs

summary

Clock speed 3 GHz
Cores Quad core
Socket type FM1
Is unlocked Yes

features

Has a NX bit Yes
Supports trusted computing Yes
Has virtualization support Yes
Instruction set extensions
  1. 3DNow!
  2. AMD-V
  3. AMD64
  4. MMX
  5. SSE
  6. SSE2
  7. SSE3
  8. SSE4a
Supports dynamic frequency scaling Yes

integrated graphics

GPU GPU
Label Radeon™ HD 6550D
Latest DirectX 11.0
Number of displays supported 2
GPU clock speed 600 MHz
Turbo clock speed 600 MHz

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1866
  2. DDR3-1600
  3. DDR3-1333
Channels Dual Channel
Supports ECC No
Maximum bandwidth 29,866.66 MB/s
Maximum memory size 32,768 MB

details

Architecture x86-64
Threads 4 threads
L2 cache 4 MB
L2 cache per core 1 MB/core
Manufacture process 32 nm
Transistor count 1,178,000,000
Max CPUs 1
Die size 228 mm²
Clock multiplier 30
Voltage range 0.45 - 1.41V
Operating temperature Unknown - 72.7°C

overclocking

Overclock popularity 32
Overclock review score 5
Overclocked clock speed 3.56 GHz
Overclocked clock speed (Water) 3.67 GHz
PassMark (Overclocked) 2,107.6
Overclocked clock speed (Air) 3.56 GHz

power consumption

TDP 100W
Annual home energy cost 40.03 $/year
Annual commercial energy cost 138.41 $/year
Performance per watt 1.03 pt/W
Idle power consumption 47W
Peak power consumption 158W

bus

Architecture FSB
Data rate 3,200 MB/s
Transfer rate 3,200 MT/s
Clock speed 100 MHz
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