AMD Phenom II X4 Black 975 

Released January, 2011
  • 3.6 GHz
  • Quad core
  • Unlocked
5.1 Out of 10

Even the range topping 1100T isn't that much more expensive.
by Tech Radar (Mar, 2011)
Overclocking this proc was a breeze.
by Rogue1266 (Apr, 2012)

CPUBoss Review Our evaluation of the AMD Phenom II X4 Black 975 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

Phenom II X4 Black 975
5.5
FX 8350
7.4
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Phenom II X4 Black 975
5.6
FX 8350
6.9
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Phenom II X4 Black 975
0.0
FX 8350
0.0
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Phenom II X4 Black 975
0.0
FX 8350
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Phenom II X4 Black 975
5.3
FX 8350
5.7
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Phenom II X4 Black 975
n.d.
FX 8350
6.3
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

5.1

CPUBoss Score

Combination of all six facets

Phenom II X4 Black 975
5.1
FX 8350
5.8

Benchmarks Real world tests of the AMD Phenom II X4 Black 975

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Phenom II X4 Black 975
6,513
FX 8350
11,483

GeekBench 3 (Single core) Data courtesy Primate Labs

Phenom II X4 Black 975
1,851
FX 8350
2,193

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom II X4 Black 975
145,400 MB/s
FX 8350
2,470,000 MB/s
Phenom II X4 965
137,800 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Phenom II X4 Black 975
6,461
FX 8350
10,956

GeekBench (64-bit) Data courtesy Primate Labs

Phenom II X4 Black 975
8,505
FX 8350
12,126

GeekBench

Phenom II X4 Black 975
8,505
FX 8350
12,796

PassMark Data courtesy Passmark

Phenom II X4 Black 975
4,614
FX 8350
9,134

PassMark (Single Core)

Phenom II X4 Black 975
1,279
FX 8350
1,525

Reviews Word on the street for the AMD Phenom II X4 Black 975


8.0
Tweak the voltage mildly to 1.4875V and 4.2GHz is possible, if not with full stability.

9.6
at Idle, she sit's at 1.425; on load she go'es right to 1.440-1.

Overall

8.8 Out of 10

What People Are Saying Give it to me straight

Socket Type

What I did notice was my PSU compensated and raised the voltage between 1.425.
by Rogue1266 (Apr, 2012)
I tested the CPU with 15 passes of 'IntelBurn' (standard) and orthos ( small FFTs-CPU stress) for 20 minutes each increase.
by Rogue1266 (Apr, 2012)
I had pushed this CPU to a hole '4429.85Mhz.
by Rogue1266 (Apr, 2012)

Socket

So I decided to push it 4 more step's(2 full number count); still leaving everything else on auto and just pushing the multiplier.
by Rogue1266 (Apr, 2012)
Just by pushing the multi- 4 steps(2 full number count), I was into the 4 gig range with no problem what so ever with everything else left on 'Auto.
by Rogue1266 (Apr, 2012)
By now you'll know our equally familiar refrain regarding the circa-2003 origins of AMD's performance PC processors, up to and including the latest Thuban sixcore models.
by Tech Radar (Mar, 2011)

Overclocking

I was just 'Amazed' at were my overclock had brought me too.
by Rogue1266 (Apr, 2012)
One area where you might plausibly hope for the unexpected is overclocking, but here too the results proved pedestrian.
by Tech Radar (Mar, 2011)
Its multiplier is fully unlocked for easy overclocking.
by Rogue1266 (Apr, 2012)

Performance

Either way for comparing the price to performance issue... I really would say this CPU is a winner.
by Rogue1266 (Apr, 2012)
The benchmark results are predictable to the point of monotony.
by Tech Radar (Mar, 2011)

Applications

Nevertheless, it's our duty to inform you that the 975 completes the R10 version of the Cinebench 3D rendering test in precisely one minute and one second.
by Tech Radar (Mar, 2011)

Specifications Full list of technical specs

summary

Clock speed 3.6 GHz
Turbo clock speed 0 GHz
Cores Quad core
Socket type AM3
Is unlocked Yes

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 125W
Annual home energy cost 30.11 $/year
Annual commercial energy cost 109.5 $/year
Performance per watt 1.69 pt/W
Typical power consumption 101.56W

memory controller

Memory controller Built-in
Memory type DDR3

details

Architecture x86-64
Threads 4 threads
L2 cache 2 MB
L2 cache per core 0.5 MB/core
L3 cache 6 MB
L3 cache per core 1.5 MB/core
Manufacture process 45 nm
Max CPUs 1
Voltage range 0.83 - 1.4V
Operating temperature Unknown - 62°C

overclocking

Overclock popularity 21
Overclock review score 5
Overclocked clock speed 4.39 GHz
Overclocked clock speed (Water) 4.26 GHz
Overclocked clock speed (Air) 4.39 GHz

integrated graphics

GPU None

bus

Clock speed 2,000 MHz
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