Phenom II X4 650T vs i9-7900X

Primary details

Comparing Core i9-7900X and Phenom II X4 650T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	560	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.90	no data
Market segment	Desktop processor	Desktop processor
Series	Core i9 (Desktop)	no data
Power efficiency	8.96	no data
Architecture codename	Skylake (server) (2017−2018)	Zosma (2010−2011)
Release date	26 June 2017 (7 years ago)	1 July 2011 (13 years ago)
Launch price (MSRP)	$999	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-7900X and Phenom II X4 650T 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	10 (Deca-Core)	4 (Quad-Core)
Threads	20	4
Base clock speed	3.3 GHz	2.7 GHz
Boost clock speed	4.5 GHz	3.2 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	33	no data
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	1 MB (per core)	512 KB (per core)
L3 cache	14 MB (shared)	4 MB (shared)
Chip lithography	14 nm	45 nm
Die size	no data	346 mm2
Maximum core temperature	95 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	904 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Core i9-7900X and Phenom II X4 650T 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	Socket R4	AM3
Power consumption (TDP)	140 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7900X and Phenom II X4 650T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	-
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Turbo Boost Max 3.0	+	no data

Security technologies

Core i9-7900X and Phenom II X4 650T technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-7900X and Phenom II X4 650T 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 i9-7900X and Phenom II X4 650T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3
Maximum memory size	128 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-7900X and Phenom II X4 650T.

PCIe version	3.0	2.0
PCI Express lanes	44	no data

Pros & cons summary

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Recency	26 June 2017	1 July 2011
Physical cores	10	4
Threads	20	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	140 Watt	95 Watt

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Should you still have questions on choice between Core i9-7900X and Phenom II X4 650T, ask them in Comments section, and we shall answer.

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