Celeron G1820T vs Core 2 Duo E8400

Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.76
Celeron G1820T
2013
2 cores / 2 threads, 35 Watt
1.07
+40.8%

Celeron G1820T outperforms Core 2 Duo E8400 by a considerable 41% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Celeron G1820T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26652439
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data1.80
Market segmentDesktop processorDesktop processor
Power efficiency1.071.81
Architecture codenameWolfdale (2008−2010)Haswell (2013−2015)
Release date1 January 2008 (16 years ago)1 December 2013 (10 years ago)
Launch price (MSRP)no data$42

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Duo E8400 and Celeron G1820T 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 GHz2.4 GHz
Boost clock speed3 GHz2.4 GHz
Bus rate1333 MHz5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache6 MB (shared)256 KB (per core)
L3 cache0 KB3 MB (shared)
Chip lithography45 nm22 nm
Die size104 mm2177 mm2
Maximum case temperature (TCase)72 °C72 °C
Number of transistors410 million1,400 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Celeron G1820T 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
SocketLGA775FCLGA1150
Power consumption (TDP)65 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Celeron G1820T. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Duo E8400 and Celeron G1820T technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Keyno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Celeron G1820T are enumerated here.

VT-d+-
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Celeron G1820T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data21.3 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel® HD Graphics for 4th Generation Intel® Processors
Max video memoryno data1.7 GB
Quick Sync Video-+
Graphics max frequencyno data1.05 GHz

Graphics interfaces

Available interfaces and connections of Core 2 Duo E8400 and Celeron G1820T integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core 2 Duo E8400 and Celeron G1820T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data1920x1080@60Hz
Max resolution over eDPno data2560x1600@60Hz
Max resolution over DisplayPortno data2560x1600@60Hz
Max resolution over VGAno data1920x1200@60Hz

Graphics API support

APIs supported by Core 2 Duo E8400 and Celeron G1820T integrated GPUs, sometimes API versions are included.

DirectXno data11.1/12
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Celeron G1820T.

PCIe version2.0Up to 3.0
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 0.76
Celeron G1820T 1.07
+40.8%

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 G1820T 1631
+40%

Gaming performance

Pros & cons summary


Performance score 0.76 1.07
Recency 1 January 2008 1 December 2013
Chip lithography 45 nm 22 nm
Power consumption (TDP) 65 Watt 35 Watt

Celeron G1820T has a 40.8% higher aggregate performance score, an age advantage of 5 years, a 104.5% more advanced lithography process, and 85.7% lower power consumption.

The Celeron G1820T is our recommended choice as it beats the Core 2 Duo E8400 in performance tests.


Should you still have questions on choice between Core 2 Duo E8400 and Celeron G1820T, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Celeron G1820T
Celeron G1820T

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Community ratings

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Questions & comments

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