Phenom II X4 955 (125W) vs Core i7-6700K

Primary details

Comparing Core i7-6700K and Phenom II X4 955 (125W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1090	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.12	no data
Market segment	Desktop processor	Desktop processor
Series	Intel Core i7 (Desktop)	no data
Architecture codename	Skylake (2015−2016)	Deneb (2009−2011)
Release date	1 September 2015 (8 years ago)	1 April 2009 (15 years ago)
Launch price (MSRP)	$339	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-6700K and Phenom II X4 955 (125W) basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	4 GHz	3.2 GHz
Boost clock speed	4 GHz	3.2 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	256 KB	128 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	8 MB	6 MB (shared)
Chip lithography	14 nm	45 nm
Die size	122 mm2	258 mm2
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	1750 Million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-6700K and Phenom II X4 955 (125W) compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1
Socket	FCLGA1151	AM3
Power consumption (TDP)	91 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6700K and Phenom II X4 955 (125W). You'll probably need this information if you require some particular technology.

AES-NI	+	no data
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Hyper-Threading Technology	+	no data
TSX	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6700K and Phenom II X4 955 (125W) are enumerated here.

AMD-V	+	+
VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6700K and Phenom II X4 955 (125W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3
Maximum memory size	64 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	no data
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel HD Graphics 530

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core i7-6700K and Phenom II X4 955 (125W).

PCIe version	3.0	2.0
PCI Express lanes	16	no data

Pros & cons summary

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Recency	1 September 2015	1 April 2009
Threads	8	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	91 Watt	125 Watt

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Should you still have questions on choice between Core i7-6700K and Phenom II X4 955 (125W), ask them in Comments section, and we shall answer.

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