Core 2 Duo P8400 vs Core i5-3340

Place in the ranking	1707	2841
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Core 2 Duo
Power efficiency	3.27	2.01
Architecture codename	no data	Penryn (2008−2011)
Release date	1 July 2013 (11 years ago)	15 July 2008 (16 years ago)
Launch price (MSRP)	no data	$209

Detailed specifications

Core i5-3340 and Core 2 Duo P8400 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)	2 (Dual-core)
Threads	4	2
Base clock speed	3.1 GHz	2.26 GHz
Boost clock speed	3.3 GHz	2.26 GHz
Bus rate	5 GT/s	1066 MHz
L1 cache	no data	128 KB
L2 cache	no data	3 MB
L3 cache	6 MB Intel® Smart Cache	3 MB L2 Cache
Chip lithography	22 nm	45 nm
Die size	no data	107 mm²
Maximum core temperature	67 °C	105 °C
Number of transistors	no data	410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1.05V-1.15V

Compatibility

Information on Core i5-3340 and Core 2 Duo P8400 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	no data
Socket	FCLGA1155	BGA479,PBGA479,PGA478
Power consumption (TDP)	77 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-3340 and Core 2 Duo P8400. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	no data
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	-
Demand Based Switching	no data	-
FDI	+	no data
FSB parity	no data	-

Security technologies

Core i5-3340 and Core 2 Duo P8400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-3340 and Core 2 Duo P8400 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-3340 and Core 2 Duo P8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1333, DDR3-1600	no data
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 2500	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-3340 and Core 2 Duo P8400 integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-3340 and Core 2 Duo P8400.

PCIe version

3.0

no data

Synthetic benchmark performance

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

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.

i5-3340 2.71
+402%

Core 2 Duo P8400 0.54

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i5-3340 4227
+398%

Core 2 Duo P8400 849

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-3340 560
+100%

Core 2 Duo P8400 280

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-3340 1679
+259%

Core 2 Duo P8400 468

Gaming performance

Pros & cons summary

Performance score	2.71	0.54
Recency	1 July 2013	15 July 2008
Physical cores	4	2
Threads	4	2
Chip lithography	22 nm	45 nm
Power consumption (TDP)	77 Watt	25 Watt

i5-3340 has a 401.9% higher aggregate performance score, an age advantage of 4 years, 100% more physical cores and 100% more threads, and a 104.5% more advanced lithography process.

Core 2 Duo P8400, on the other hand, has 208% lower power consumption.

The Core i5-3340 is our recommended choice as it beats the Core 2 Duo P8400 in performance tests.

Note that Core i5-3340 is a desktop processor while Core 2 Duo P8400 is a notebook one.

Should you still have questions on choice between Core i5-3340 and Core 2 Duo P8400, ask them in Comments section, and we shall answer.