Celeron 3965Y vs Core 2 Duo E8400

VS

Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.73
Celeron 3965Y
2017
2 cores / 2 threads, 6 Watt
0.75
+2.7%

Celeron 3965Y outperforms Core 2 Duo E8400 by a minimal 3% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Celeron 3965Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26852666
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Celeron
Power efficiency1.0611.83
Architecture codenameWolfdale (2008−2010)Kaby Lake (2016−2019)
Release date1 January 2008 (16 years ago)21 April 2017 (7 years ago)

Detailed specifications

Core 2 Duo E8400 and Celeron 3965Y 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 cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed3 GHz1.5 GHz
Boost clock speed3 GHz1.3 GHz
Bus typeno dataOPI
Bus rate1333 MHz4 GT/s
Multiplierno data13
L1 cache64 KB (per core)128 KB
L2 cache6 MB (shared)512 KB
L3 cache0 KB2 MB
Chip lithography45 nm14 nm
Die size104 mm2no data
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors410 millionno data
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Celeron 3965Y 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 configuration11 (Uniprocessor)
SocketLGA775FCBGA1515
Power consumption (TDP)65 Watt6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Celeron 3965Y. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
My WiFino data+
Turbo Boost Technology--
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Smart Responseno data+
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Duo E8400 and Celeron 3965Y technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Keyno data+
MPX-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Celeron 3965Y are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Celeron 3965Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3
Maximum memory sizeno data16 GB
Max memory channelsno data2
Maximum memory bandwidthno data34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel HD Graphics 615
Max video memoryno data16 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data850 MHz

Graphics interfaces

Available interfaces and connections of Core 2 Duo E8400 and Celeron 3965Y integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core 2 Duo E8400 and Celeron 3965Y integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core 2 Duo E8400 and Celeron 3965Y integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.4

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Celeron 3965Y.

PCIe version2.03.0
PCI Express lanesno data16

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.

Core 2 Duo E8400 0.73
Celeron 3965Y 0.75
+2.7%

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.

Core 2 Duo E8400 1165
Celeron 3965Y 1194
+2.5%

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.

Core 2 Duo E8400 370
+15.3%
Celeron 3965Y 321

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.

Core 2 Duo E8400 604
+6.9%
Celeron 3965Y 565

Gaming performance

Pros & cons summary


Performance score 0.73 0.75
Recency 1 January 2008 21 April 2017
Chip lithography 45 nm 14 nm
Power consumption (TDP) 65 Watt 6 Watt

Celeron 3965Y has a 2.7% higher aggregate performance score, an age advantage of 9 years, a 221.4% more advanced lithography process, and 983.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core 2 Duo E8400 and Celeron 3965Y.

Note that Core 2 Duo E8400 is a desktop processor while Celeron 3965Y is a notebook one.


Should you still have questions on choice between Core 2 Duo E8400 and Celeron 3965Y, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Celeron 3965Y
Celeron 3965Y

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Community ratings

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