Intel Core 2 Quad Q9500 vs Intel Core 2 Duo E6420

Comparative analysis of Intel Core 2 Quad Q9500 and Intel Core 2 Duo E6420 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, 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).

Intel Core 2 Quad Q9500

Intel Core 2 Duo E6420

Differences

Reasons to consider the Intel Core 2 Quad Q9500

2 more cores, run more applications at once: 4 vs 2
Around 19% higher maximum core temperature: 71.4°C vs 60.1°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
Around 55% better performance in PassMark - Single thread mark: 1214 vs 781
3x better performance in PassMark - CPU mark: 2232 vs 752
Around 33% better performance in Geekbench 4 - Single Core: 395 vs 296
2.3x better performance in Geekbench 4 - Multi-Core: 1225 vs 541

Specifications (specs)
Number of cores	4 vs 2
Maximum core temperature	71.4°C vs 60.1°C
Manufacturing process technology	45 nm vs 65 nm
Benchmarks
PassMark - Single thread mark	1214 vs 781
PassMark - CPU mark	2232 vs 752
Geekbench 4 - Single Core	395 vs 296
Geekbench 4 - Multi-Core	1225 vs 541

Reasons to consider the Intel Core 2 Duo E6420

Around 46% lower typical power consumption: 65 Watt vs 95 Watt

Thermal Design Power (TDP)	65 Watt vs 95 Watt

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9500
CPU 2: Intel Core 2 Duo E6420

PassMark - Single thread mark

CPU 1

CPU 2

1214

781

PassMark - CPU mark

CPU 1

CPU 2

2232

752

Geekbench 4 - Single Core

CPU 1

CPU 2

395

296

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1225

541

Name	Intel Core 2 Quad Q9500	Intel Core 2 Duo E6420
PassMark - Single thread mark	1214	781
PassMark - CPU mark	2232	752
Geekbench 4 - Single Core	395	296
Geekbench 4 - Multi-Core	1225	541
3DMark Fire Strike - Physics Score	0
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.762
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	28.113
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.158

Compare specifications (specs)

	Intel Core 2 Quad Q9500	Intel Core 2 Duo E6420
Essentials
Architecture codename	Yorkfield	Conroe
Place in performance rating	2920	2909
Processor Number	Q9500	E6420
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Launch date		April 2007
Price now		$49.99
Value for money (0-100)		8.02
Performance
64 bit support
Base frequency	2.83 GHz	2.13 GHz
Bus Speed	1333 MHz FSB	1066 MHz FSB
Die size	164 mm2	143 mm2
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	71.4°C	60.1°C
Number of cores	4	2
Transistor count	456 million	291 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.5V
L1 cache		64 KB
L2 cache		4096 KB
Maximum frequency		2.13 GHz
Compatibility
Low Halogen Options Available
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	PLGA775
Thermal Design Power (TDP)	95 Watt	65 Watt
Max number of CPUs in a configuration		1
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Intel® AES New Instructions
Virtualization
Intel® Virtualization Technology (VT-x)
Memory
Supported memory types		DDR1, DDR2, DDR3