Intel Core i5-9400 vs Intel Core 2 Extreme QX9770

Comparative analysis of Intel Core i5-9400 and Intel Core 2 Extreme QX9770 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, 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, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i5-9400

Intel Core 2 Extreme QX9770

Differences

Reasons to consider the Intel Core i5-9400

CPU is newer: launch date 10 year(s) 7 month(s) later
2 more cores, run more applications at once: 6 vs 4
Around 28% higher clock speed: 4.10 GHz vs 3.2 GHz
Around 80% higher maximum core temperature: 100°C vs 55.5°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 45 nm
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
2.1x lower typical power consumption: 65 Watt vs 136 Watt

Launch date	October 2018 vs March 2008
Number of cores	6 vs 4
Maximum frequency	4.10 GHz vs 3.2 GHz
Maximum core temperature	100°C vs 55.5°C
Manufacturing process technology	14 nm vs 45 nm
L1 cache	64K (per core) vs 256 KB
Thermal Design Power (TDP)	65 Watt vs 136 Watt

Reasons to consider the Intel Core 2 Extreme QX9770

Processor is unlocked, an unlocked multiplier allows for easier overclocking
8x more L2 cache, more data can be stored in the L2 cache for quick access later
2.2x better performance in Geekbench 4 - Single Core: 2338 vs 1075
Around 44% better performance in Geekbench 4 - Multi-Core: 6682 vs 4645

Specifications (specs)
Unlocked	Unlocked vs Locked
L2 cache	12288 KB vs 256K (per core)
Benchmarks
Geekbench 4 - Single Core	2338 vs 1075
Geekbench 4 - Multi-Core	6682 vs 4645

Compare benchmarks

CPU 1: Intel Core i5-9400
CPU 2: Intel Core 2 Extreme QX9770

Geekbench 4 - Single Core

CPU 1

CPU 2

1075

2338

Geekbench 4 - Multi-Core

CPU 1

CPU 2

4645

6682

Name	Intel Core i5-9400	Intel Core 2 Extreme QX9770
PassMark - Single thread mark	2435
PassMark - CPU mark	9373
Geekbench 4 - Single Core	1075	2338
Geekbench 4 - Multi-Core	4645	6682
3DMark Fire Strike - Physics Score	3760
GFXBench 4.0 - Car Chase Offscreen (Frames)	1738
GFXBench 4.0 - Manhattan (Frames)	3574
GFXBench 4.0 - T-Rex (Frames)	6414
GFXBench 4.0 - Car Chase Offscreen (Fps)	1738
GFXBench 4.0 - Manhattan (Fps)	3574
GFXBench 4.0 - T-Rex (Fps)	6414

Compare specifications (specs)

	Intel Core i5-9400	Intel Core 2 Extreme QX9770
Essentials
Architecture codename	Coffee Lake	Yorkfield
Launch date	October 2018	March 2008
Place in performance rating	833	834
Processor Number	i5-9400	QX9770
Series	9th Generation Intel® Core™ i5 Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.90 GHz	3.20 GHz
Bus Speed	8 GT/s DMI3	1600 MHz FSB
L1 cache	64K (per core)	256 KB
L2 cache	256K (per core)	12288 KB
L3 cache	9 MB (shared)
Manufacturing process technology	14 nm	45 nm
Maximum case temperature (TCase)	72 °C	55 °C
Maximum core temperature	100°C	55.5°C
Maximum frequency	4.10 GHz	3.2 GHz
Number of cores	6	4
Number of threads	6
Die size		214 mm2
Transistor count		820 million
Unlocked
VID voltage range		0.8500V-1.3625V
Memory
Max memory channels	2
Maximum memory bandwidth	41.6 GB/s
Maximum memory size	128 GB
Supported memory types	DDR4-2666	DDR1, DDR2, DDR3
Graphics
Device ID	0X3E98/x92
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.05 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® UHD Graphics 630
Graphics interfaces
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1151	LGA775
Thermal Design Power (TDP)	65 Watt	136 Watt
Thermal Solution	PCG 2015C (65W)
Low Halogen Options Available
Peripherals
Max number of PCIe lanes	16
PCI Express revision	3.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)