Intel Core i9-7940X vs Intel Core 2 Extreme QX9770

Comparative analysis of Intel Core i9-7940X and Intel Core 2 Extreme QX9770 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Core i9-7940X

Intel Core 2 Extreme QX9770

Differences

Reasons to consider the Intel Core i9-7940X

CPU is newer: launch date 9 year(s) 6 month(s) later
10 more cores, run more applications at once: 14 vs 4
Around 34% higher clock speed: 4.30 GHz vs 3.2 GHz
Around 84% higher maximum core temperature: 102°C vs 55.5°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 45 nm
3.5x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 17% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 93% better performance in Geekbench 4 - Multi-Core: 12928 vs 6682

Specifications (specs)
Launch date	September 2017 vs March 2008
Number of cores	14 vs 4
Maximum frequency	4.30 GHz vs 3.2 GHz
Maximum core temperature	102°C vs 55.5°C
Manufacturing process technology	14 nm vs 45 nm
L1 cache	64 KB (per core) vs 256 KB
L2 cache	1024 KB (per core) vs 12288 KB
Benchmarks
Geekbench 4 - Multi-Core	12928 vs 6682

Reasons to consider the Intel Core 2 Extreme QX9770

Around 21% lower typical power consumption: 136 Watt vs 165 Watt
2x better performance in Geekbench 4 - Single Core: 2338 vs 1153

Specifications (specs)
Thermal Design Power (TDP)	136 Watt vs 165 Watt
Benchmarks
Geekbench 4 - Single Core	2338 vs 1153

Compare benchmarks

CPU 1: Intel Core i9-7940X
CPU 2: Intel Core 2 Extreme QX9770

Geekbench 4 - Single Core

CPU 1

CPU 2

1153

2338

Geekbench 4 - Multi-Core

CPU 1

CPU 2

12928

6682

Name	Intel Core i9-7940X	Intel Core 2 Extreme QX9770
PassMark - Single thread mark	2491
PassMark - CPU mark	25987
Geekbench 4 - Single Core	1153	2338
Geekbench 4 - Multi-Core	12928	6682
3DMark Fire Strike - Physics Score	10950

Compare specifications (specs)

	Intel Core i9-7940X	Intel Core 2 Extreme QX9770
Essentials
Architecture codename	Skylake	Yorkfield
Launch date	September 2017	March 2008
Launch price (MSRP)	$1,399
Place in performance rating	749	757
Price now	$1,129.99
Processor Number	i9-7940X	QX9770
Series	Intel® Core™ X-series Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Value for money (0-100)	6.63
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.10 GHz	3.20 GHz
Bus Speed	8 GT/s DMI3	1600 MHz FSB
L1 cache	64 KB (per core)	256 KB
L2 cache	1024 KB (per core)	12288 KB
L3 cache	19712 KB (shared)
Manufacturing process technology	14 nm	45 nm
Maximum core temperature	102°C	55.5°C
Maximum frequency	4.30 GHz	3.2 GHz
Number of cores	14	4
Number of QPI Links	0
Number of threads	28
Unlocked
Die size		214 mm2
Maximum case temperature (TCase)		55 °C
Transistor count		820 million
VID voltage range		0.8500V-1.3625V
Memory
Max memory channels	4
Maximum memory size	128 GB
Supported memory types	DDR4-2666	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Sockets supported	FCLGA2066	LGA775
Thermal Design Power (TDP)	165 Watt	136 Watt
Thermal Solution	PCG 2017X
Package Size		37.5mm x 37.5mm
Peripherals
Max number of PCIe lanes	44
PCI Express revision	3.0
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Number of AVX-512 FMA Units	2
FSB parity
Idle States
Intel® Demand Based Switching
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)