EPYC 7643 vs Core 2 Quad Q9650

Primary details

Comparing Core 2 Quad Q9650 and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1980	31
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.43	3.29
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Architecture codename	Yorkfield (2007−2009)	Milan (2021)
Release date	August 2008 (15 years ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	no data	$4,995
Current price	$75	$8164 (1.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7643 has 130% better value for money than Core 2 Quad Q9650.

Detailed specifications

Core 2 Quad Q9650 and EPYC 7643 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)	48 (Octatetraconta-Core)
Threads	4	96
Base clock speed	3 GHz	2.3 GHz
Boost clock speed	3 GHz	3.6 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	6 MB (per die)	512 KB (per core)
L3 cache	0 KB	256 MB (shared)
Chip lithography	45 nm	7 nm+
Die size	2x 107 mm2	8x 81 mm2
Maximum core temperature	71 °C	no data
Number of transistors	820 million	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9650 and EPYC 7643 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	2
Socket	LGA775	SP3
Power consumption (TDP)	95 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9650 and EPYC 7643. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Core 2 Quad Q9650 and EPYC 7643 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9650 and EPYC 7643 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9650 and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4-3200
Maximum memory size	no data	4 TiB
Maximum memory bandwidth	no data	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9650 and EPYC 7643.

PCIe version	no data	4.0
PCI Express lanes	no data	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

EPYC 7643 outperforms Core 2 Quad Q9650 by 2989% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	1.60	49.43
Physical cores	4	48
Threads	4	96
Chip lithography	45 nm	7 nm
Power consumption (TDP)	95 Watt	225 Watt

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Should you still have questions on choice between Core 2 Quad Q9650 and EPYC 7643, ask them in Comments section, and we shall answer.

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