Core 2 Duo E4400 vs Pentium 3825U

Place in the ranking	2547	2929
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Pentium	no data
Power efficiency	5.55	0.66
Architecture codename	Broadwell-U (2015)	Allendale (2006−2009)
Release date	1 March 2015 (9 years ago)	July 2007 (17 years ago)
Launch price (MSRP)	$161	no data

Detailed specifications

Pentium 3825U and Core 2 Duo E4400 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)	2 (Dual-core)
Threads	4	2
Base clock speed	1.9 GHz	2 GHz
Boost clock speed	1.9 GHz	2 GHz
Bus rate	5 GT/s	800 MHz
L1 cache	64K (per core)	64 KB
L2 cache	256K (per core)	2 MB
L3 cache	2 MB (shared)	0 KB
Chip lithography	14 nm	65 nm
Die size	82 mm²	111 mm²
Maximum core temperature	105 °C	L2=61 °C, M0=73 °C
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	167 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.85V-1.5V

Compatibility

Information on Pentium 3825U and Core 2 Duo E4400 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	FCBGA1168	LGA775
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3825U and Core 2 Duo E4400. You'll probably need this information if you require some particular technology.

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

Security technologies

Pentium 3825U and Core 2 Duo E4400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
OS Guard	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3825U and Core 2 Duo E4400 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3825U and Core 2 Duo E4400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, DDR3
Maximum memory size	16 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 for 5th Generation Intel Processors	no data
Quick Sync Video	+	-
Clear Video	+	no data
Graphics max frequency	850 MHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Pentium 3825U and Core 2 Duo E4400 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by Pentium 3825U and Core 2 Duo E4400 integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

no data

Peripherals

Specifications and connection of peripherals supported by Pentium 3825U and Core 2 Duo E4400.

PCIe version	2.0	no data
PCI Express lanes	12	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.

Pentium 3825U 0.88
+95.6%

Core 2 Duo E4400 0.45

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.

Pentium 3825U 1399
+94.8%

Core 2 Duo E4400 718

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.

Pentium 3825U 337
+40.4%

Core 2 Duo E4400 240

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.

Pentium 3825U 685
+60%

Core 2 Duo E4400 428

Gaming performance

Pros & cons summary

Performance score	0.88	0.45
Threads	4	2
Chip lithography	14 nm	65 nm
Power consumption (TDP)	15 Watt	65 Watt

Pentium 3825U has a 95.6% higher aggregate performance score, 100% more threads, a 364.3% more advanced lithography process, and 333.3% lower power consumption.

The Pentium 3825U is our recommended choice as it beats the Core 2 Duo E4400 in performance tests.

Be aware that Pentium 3825U is a notebook processor while Core 2 Duo E4400 is a desktop one.

Should you still have questions on choice between Pentium 3825U and Core 2 Duo E4400, ask them in Comments section, and we shall answer.