AMD FX-6100 vs Phenom II X4 955 (125W, rev. C3)

Mini Review

AMD FX-6100 advantages

The FX-6100 packs more CPU cores than the AMD 955 microprocessor. Large number of cores helps this processor to handle multiple simultaneous threads or processes.
Operating frequency of the microprocessor is higher than the frequency of the 955 processor.
The microprocessor supports SSSE3, SSE4.1 and SSE4.2 instructions.
The FX-6100 has AES extension to the instruction set. This technology provides hardware acceleration of AES encryption and decryption, and is beneficial if you run programs, that protect your disk or network data.
The AMD FX-6100 incorporates AVX, FMA4 and XOP instructions. These extensions are not extensively used in applications yet, but their support should improve in future apps.
The FX-6100 features unlocked multiplier. The processor can be freely overclocked on most motherboards to get greater performance.
The microprocessor is 24% more energy efficient.

AMD Phenom II X4 955 (125W, rev. C3) advantages

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The 955 has 3DNow! technology. While the 3DNow! technology may enhance performance of some old games and software, it is now obsolete, and it is no longer used by modern programs.

FX-6100 vs 955 specifications comparison

The graphs below compare the most important 955 and FX-6100 characteristics. These features, together with an IPC (instructions per cycle) number, determine how well a CPU performs. The "Operating frequency" graph uses dark color to represent base frequency, whereas lighter area is for extra frequency, provided by Turbo feature. Darker area on the "On-chip cache" graph is for the On-chip L2 cache. Lighter area is for the L3 cache cache. Although the L3 cache cache is usually larger than the On-chip L2 cache, it is always slower.

The number of cores / threads

7
5.6
4.2
2.8
1.4
0

6

4

Higher is better

Operating frequency

5
4
3
2
1
0

3.9GHz

3.2GHz

Higher is better

On-chip L2 + L3 cache

20
16
12
8
4
0

14MB

8MB

Higher is better

Thermal Design Power

200
160
120
80
40
0

95W

125W

Lower is better

- AMD FX-6100 - AMD Phenom II X4 955 (125W, rev. C3)

Detailed side by side comparison of FX-6100 vs 955 specs can be found in the "Specifications" tab.

Pros and Cons summary


FX-6100	Phenom II X4 955 (125W, rev. C3)
General recommendations: More cores for better multi-threading performance, Supports more simultaneous threads, Base frequency is higher, Supports SSE4.1 / SSE4.2 / AVX / FMA4 / XOP instructions, Can be effortlessly overclocked, Somewhat lower power consumption	General recommendations: None
Drawbacks: None	Drawbacks: Has fewer CPU cores, Cannot execute as many threads at once, Base frequency is lower, Does not support some instructions, Less energy efficient

Similar processors


FX-6100	Phenom II X4 955 (125W, rev. C3)
AMD 955 (125W, rev. C3) vs FX-4170 AMD 955 (125W, rev. C3) vs FX-6120 AMD 955 (125W, rev. C3) vs FX-6200	AMD FX-6100 vs 945 (125W) AMD FX-6100 vs 965 (125W, non-BE) AMD FX-6100 vs 970 (rev. C3)

Similar CPUs use the same socket and architecture as AMD FX-6100 and Phenom II X4 955 (125W, rev. C3).

Specifications

	AMD FX-6100	AMD Phenom II X4 955 (125W, rev. C3)
	Basic details
Market segment	Desktop
Manufacturer	AMD
Family	AMD FX-Series	AMD Phenom II X4
Model number	FX-6100	955
CPU part number	FD6100WMW6KGU	HDX955FBK4DGM
Box part number	FD6100WMGUSBX
Introduction date	October 12, 2011	November 4, 2009
Current official price	$112 (as of Apr 2013)

	CPU features
Core name	Zambezi	Deneb
Platform name	Scorpius	Dragon
Microarchitecture	Bulldozer	K10
Technology (micron)	0.032	0.045
Data width (bits)	64
Socket	Socket AM3+	Socket AM2+ / Socket AM3
Frequency (MHz)	3300	3200
Turbo Frequency (MHz)	3900 / 3600
Bus speed (MHz)	2600 (HT/QPI)	2000 (HT/QPI)
Clock Multiplier		16
L1 cache	192 KB (code) / 96 KB (data)	256 KB (code) / 256 KB (data)
L2 cache (KB)	6144	2048
L3 cache (KB)	8192	6144
Max temperature (°C)	70	55 - 62
TDP (Watt)	95	125
Core voltage (V)		0.85 - 1.4
Cores	6	4
Threads	6	4
Multiprocessing	1

	Instruction set extensions
3DNow!	-	+
AES / Advanced Encryption Standard	+	-
AMD64 / EM64T 64-bit technology	+
AVX / Advanced Vector Extensions	+	-
FMA4 / 4-operand Fused Multiply-Add	+	-
MMX	+
SSE	+
SSE2	+
SSE3	+
SSE4.1	+	-
SSE4.2	+	-
SSSE3 / Supplemental SSE3	+	-
XOP / eXtended Operations	+	-

	Supported technologies
PowerNow! / Enhanced SpeedStep	+
Turbo Core / Turbo Boost	+	-
Unlocked multiplier	+	-
Virtualization	+
Virus Protection / Execute Disable bit	+

	Integrated Graphics
GPU Type	None

Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD FX-6100" or "AMD Phenom II X4 955 (125W, rev. C3)" parts please click on the links in the table header.

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Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

i5-3570K
Intel Celeron 2 GHz
Ivy Bridge
Pentium 4 800FSB
AMD 3.3GHz 8MB

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Last modified: 12 May 2013