Core i5-10400F vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Core i5-10400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2537	826
Place by popularity	not in top-100	11
Cost-effectiveness evaluation	1.86	48.80
Market segment	Desktop processor	Desktop processor
Architecture codename	Wolfdale (2008−2010)	Comet Lake (2020)
Release date	1 January 2008 (16 years ago)	30 April 2020 (4 years ago)
Launch price (MSRP)	no data	$155
Current price	$67	$100 (0.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i5-10400F has 2524% better value for money than Core 2 Duo E8400.

Detailed specifications

Core 2 Duo E8400 and Core i5-10400F 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	2.9 GHz
Boost clock speed	3 GHz	4.3 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	6 MB (shared)	256K (per core)
L3 cache	0 KB	12 MB (shared)
Chip lithography	45 nm	14 nm
Die size	104 mm2	no data
Maximum core temperature	72 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
Number of transistors	410 million	no data
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 Core i5-10400F 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	FCLGA1200
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core i5-10400F. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	no data	-
Idle States	+	+
Thermal Monitoring	+	+
SIPP	no data	-
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
FSB parity	-	no data
Status	Discontinued	Launched

Security technologies

Core 2 Duo E8400 and Core i5-10400F technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	no data	+
Identity Protection	no data	+
SGX	no data	Yes with Intel® ME
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core i5-10400F are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core i5-10400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory size	no data	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	41.6 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core i5-10400F.

PCIe version	2.0	3.0
PCI Express lanes	no data	16

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.

Core i5-10400F outperforms Core 2 Duo E8400 by 1023% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.75	8.42
Recency	1 January 2008	30 April 2020
Physical cores	2	6
Threads	2	12
Chip lithography	45 nm	14 nm

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Should you still have questions on choice between Core 2 Duo E8400 and Core i5-10400F, ask them in Comments section, and we shall answer.

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