Intel Core 2 Duo E6540 vs Intel Celeron G1820T

Comparative analysis of Intel Core 2 Duo E6540 and Intel Celeron G1820T processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core 2 Duo E6540

Intel Celeron G1820T

Differences

Reasons to consider the Intel Core 2 Duo E6540

Around 8% higher maximum core temperature: 72°C vs 66.4°C

Maximum core temperature	72°C vs 66.4°C

Reasons to consider the Intel Celeron G1820T

A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 65 nm
Around 86% lower typical power consumption: 35 Watt vs 65 Watt
Around 44% better performance in PassMark - Single thread mark: 1394 vs 969
2x better performance in PassMark - CPU mark: 1631 vs 808

Specifications (specs)
Manufacturing process technology	22 nm vs 65 nm
Thermal Design Power (TDP)	35 Watt vs 65 Watt
Benchmarks
PassMark - Single thread mark	1394 vs 969
PassMark - CPU mark	1631 vs 808

Compare benchmarks

CPU 1: Intel Core 2 Duo E6540
CPU 2: Intel Celeron G1820T

PassMark - Single thread mark

CPU 1

CPU 2

969

1394

PassMark - CPU mark

CPU 1

CPU 2

808

1631

Name	Intel Core 2 Duo E6540	Intel Celeron G1820T
PassMark - Single thread mark	969	1394
PassMark - CPU mark	808	1631
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		3.829
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		15.358
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.848
CompuBench 1.5 Desktop - Video Composition (Frames/s)		7.715
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		1.867

Compare specifications (specs)

	Intel Core 2 Duo E6540	Intel Celeron G1820T
Essentials
Architecture codename	Conroe	Haswell
Launch date	Q3'07	December 2013
Place in performance rating	2339	2352
Processor Number	E6540	G1820T
Series	Legacy Intel® Core™ Processors	Intel® Celeron® Processor G Series
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$42
Price now		$42
Value for money (0-100)		17.57
Performance
64 bit support
Base frequency	2.33 GHz	2.40 GHz
Bus Speed	1333 MHz FSB	5 GT/s DMI2
Die size	143 mm2	177 mm
Manufacturing process technology	65 nm	22 nm
Maximum core temperature	72°C	66.4°C
Number of cores	2	2
Transistor count	291 million	1400 million
VID voltage range	0.8500V-1.5V
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		3072 KB (shared)
Maximum case temperature (TCase)		72 °C
Maximum frequency		2.4 GHz
Number of threads		2
Compatibility
Low Halogen Options Available
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	PLGA775	FCLGA1150
Thermal Design Power (TDP)	65 Watt	35 Watt
Max number of CPUs in a configuration		1
Thermal Solution		PCG 2013A
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Intel® Secure Key technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Memory
ECC memory support
Max memory channels		2
Maximum memory bandwidth		21.3 GB/s
Maximum memory size		32 GB
Supported memory types		DDR3-1333, DDR3L-1333 @ 1.5V
Graphics
Graphics base frequency		200 MHz
Graphics max dynamic frequency		1.05 GHz
Graphics max frequency		1.05 GHz
Intel® Quick Sync Video
Max video memory		1.7 GB
Processor graphics		Intel HD Graphics
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported		3
VGA
Graphics image quality
Max resolution over DisplayPort		2560x1600@60Hz
Max resolution over eDP		2560x1600@60Hz
Max resolution over HDMI 1.4		1920x1080@60Hz
Max resolution over VGA		1920x1200@60Hz
Graphics API support
DirectX		11.1/12
OpenGL		4.3
Peripherals
Max number of PCIe lanes		16
PCI Express revision		Up to 3.0
PCIe configurations		Up to 1x16, 2x8, 1x8+2x4
Scalability		1S Only