Ryzen 5 PRO 4650U vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Ryzen 5 PRO 4650U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2563	866
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.86	no data
Market segment	Desktop processor	Laptop
Series	no data	AMD Renoir (Ryzen 4000 APU)
Architecture codename	Wolfdale (2008−2010)	Renoir-U PRO (Zen 2)
Release date	1 January 2008 (16 years ago)	7 May 2020 (4 years ago)
Current price	$61	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo E8400 and Ryzen 5 PRO 4650U 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	2 (Dual-core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	3 GHz	2.1 GHz
Boost clock speed	3 GHz	4 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	6 MB (shared)	512K (per core)
L3 cache	0 KB	8 MB (shared)
Chip lithography	45 nm	7 nm
Die size	104 mm2	156 mm2
Maximum core temperature	72 °C	105 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	9,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8400 and Ryzen 5 PRO 4650U 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	1
Socket	LGA775	FP6
Power consumption (TDP)	65 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Ryzen 5 PRO 4650U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	DDR4-3200/LPDDR4-4266 RAM, PCIe 3, PRO, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	-	+
FMA	no data	+
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 Duo E8400 and Ryzen 5 PRO 4650U 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 Duo E8400 and Ryzen 5 PRO 4650U 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 Duo E8400 and Ryzen 5 PRO 4650U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory size	no data	64 GB
Max memory channels	no data	4
Maximum memory bandwidth	no data	68.27 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

AMD Radeon RX Vega 6 (Ryzen 4000/5000)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Ryzen 5 PRO 4650U.

PCIe version

2.0

3.0

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.

Ryzen 5 PRO 4650U outperforms Core 2 Duo E8400 by 993% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	0.75	8.20
Recency	1 January 2008	7 May 2020
Physical cores	2	6
Threads	2	12
Chip lithography	45 nm	7 nm
Power consumption (TDP)	65 Watt	15 Watt

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Should you still have questions on choice between Core 2 Duo E8400 and Ryzen 5 PRO 4650U, ask them in Comments section, and we shall answer.

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