Intel Core i7-8670 vs Intel Core i7-7740X

Comparative analysis of Intel Core i7-8670 and Intel Core i7-7740X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Peripherals. Benchmark processor performance analysis: GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Core i7-8670

Intel Core i7-7740X

Differences

Reasons to consider the Intel Core i7-8670

CPU is newer: launch date 7 month(s) later
2 more cores, run more applications at once: 6 vs 4
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 72% lower typical power consumption: 65 Watt vs 112 Watt

Launch date	January 2018 vs 30 May 2017
Number of cores	6 vs 4
L1 cache	64 KB (per core) vs 256 KB
L2 cache	256 KB (per core) vs 1 MB
L3 cache	12288 KB (shared) vs 8 MB
Thermal Design Power (TDP)	65 Watt vs 112 Watt

Reasons to consider the Intel Core i7-7740X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 45% higher clock speed: 4.50 GHz vs 3.1 GHz

Unlocked	Unlocked vs Locked
Maximum frequency	4.50 GHz vs 3.1 GHz

Compare benchmarks

CPU 1: Intel Core i7-8670
CPU 2: Intel Core i7-7740X

Name	Intel Core i7-8670	Intel Core i7-7740X
GFXBench 4.0 - Car Chase Offscreen (Frames)	2120
GFXBench 4.0 - Car Chase Offscreen (Fps)	2120
GFXBench 4.0 - Manhattan (Frames)	1306
GFXBench 4.0 - Manhattan (Fps)	1306
GFXBench 4.0 - T-Rex (Frames)	2279
GFXBench 4.0 - T-Rex (Fps)	2279
PassMark - Single thread mark		2686
PassMark - CPU mark		9611
Geekbench 4 - Single Core		1251
Geekbench 4 - Multi-Core		4898
3DMark Fire Strike - Physics Score		0

Compare specifications (specs)

	Intel Core i7-8670	Intel Core i7-7740X
Essentials
Architecture codename	Coffee Lake	Kaby Lake
Launch date	January 2018	30 May 2017
Place in performance rating	1362	1358
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$350
Price now		$348.99
Processor Number		i7-7740X
Series		Intel® Core™ X-series Processors
Status		Discontinued
Value for money (0-100)		10.34
Performance
64 bit support
L1 cache	64 KB (per core)	256 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	12288 KB (shared)	8 MB
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C	72 °C
Maximum frequency	3.1 GHz	4.50 GHz
Number of cores	6	4
Base frequency		4.30 GHz
Bus Speed		8 GT/s DMI3
Maximum core temperature		100°C
Number of QPI Links		0
Number of threads		8
Unlocked
Memory
Supported memory types	DDR4	DDR4-2666
Max memory channels		2
Maximum memory size		64 GB
Compatibility
Max number of CPUs in a configuration	1	1
Thermal Design Power (TDP)	65 Watt	112 Watt
Low Halogen Options Available
Sockets supported		FCLGA2066
Thermal Solution		PCG 2017X
Security & Reliability
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
AMD Virtualization (AMD-V™)
Peripherals
Max number of PCIe lanes		16
PCI Express revision		3.0
PCIe configurations		Up to 1x16, 2x8, 1x8+2x4
Scalability		1S Only