Intel Core i7-10700K vs Intel Core i9-7940X

Comparative analysis of Intel Core i7-10700K and Intel Core i9-7940X 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, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

 

Differences

Reasons to consider the Intel Core i7-10700K

  • Around 19% higher clock speed: 5.10 GHz vs 4.30 GHz
  • Around 14% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 32% lower typical power consumption: 125 Watt vs 165 Watt
  • Around 23% better performance in PassMark - Single thread mark: 3049 vs 2486
Specifications (specs)
Maximum frequency 5.10 GHz vs 4.30 GHz
L1 cache 1 MB vs 64 KB (per core)
Thermal Design Power (TDP) 125 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark 3049 vs 2486

Reasons to consider the Intel Core i9-7940X

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 6 more cores, run more applications at once: 14 vs 8
  • 12 more threads: 28 vs 16
  • Around 2% higher maximum core temperature: 102°C vs 100°C
  • 7x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 20% more L3 cache; more data can be stored in the L3 cache for quick access later
  • Around 38% better performance in PassMark - CPU mark: 25954 vs 18767
  • Around 51% better performance in 3DMark Fire Strike - Physics Score: 10950 vs 7270
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 14 vs 8
Number of threads 28 vs 16
Maximum core temperature 102°C vs 100°C
L2 cache 1024 KB (per core) vs 2 MB
L3 cache 19712 KB (shared) vs 16 MB
Benchmarks
PassMark - CPU mark 25954 vs 18767
3DMark Fire Strike - Physics Score 10950 vs 7270

Compare benchmarks

CPU 1: Intel Core i7-10700K
CPU 2: Intel Core i9-7940X

PassMark - Single thread mark
CPU 1
CPU 2
3049
2486
PassMark - CPU mark
CPU 1
CPU 2
18767
25954
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
7270
10950
Name Intel Core i7-10700K Intel Core i9-7940X
PassMark - Single thread mark 3049 2486
PassMark - CPU mark 18767 25954
3DMark Fire Strike - Physics Score 7270 10950
Geekbench 4 - Single Core 1153
Geekbench 4 - Multi-Core 12928

Compare specifications (specs)

Intel Core i7-10700K Intel Core i9-7940X

Essentials

Architecture codename Comet Lake Skylake
Launch date Q2'20 September 2017
Launch price (MSRP) $374 - $387 $1,399
Place in performance rating 697 722
Processor Number i7-10700K i9-7940X
Series 10th Generation Intel Core i7 Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Desktop Desktop
Price now $1,129.99
Value for money (0-100) 6.63

Performance

64 bit support
Base frequency 3.80 GHz 3.10 GHz
Bus Speed 8 GT/s 8 GT/s DMI3
L1 cache 1 MB 64 KB (per core)
L2 cache 2 MB 1024 KB (per core)
L3 cache 16 MB 19712 KB (shared)
Manufacturing process technology 14 nm 14 nm
Maximum core temperature 100°C 102°C
Maximum frequency 5.10 GHz 4.30 GHz
Number of cores 8 14
Number of threads 16 28
Number of QPI Links 0
Unlocked

Memory

Max memory channels 2 4
Maximum memory bandwidth 45.8 GB/s
Maximum memory size 128 GB 128 GB
Supported memory types DDR4-2933 DDR4-2666

Graphics

Device ID 0x9BC5
Graphics base frequency 350 MHz
Graphics max dynamic frequency 1.20 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 4096x2160@30Hz

Graphics API support

DirectX 12
OpenGL 4.5

Compatibility

Configurable TDP-down 95 Watt
Configurable TDP-down Frequency 3.50 GHz
Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm
Sockets supported FCLGA1200 FCLGA2066
Thermal Design Power (TDP) 125 Watt 165 Watt
Thermal Solution PCG 2015D PCG 2017X
Low Halogen Options Available

Peripherals

Max number of PCIe lanes 16 44
PCI Express revision 3.0 3.0
PCIe configurations Up to 1x16, 2x8, 1x8+2x4
Scalability 1S Only 1S Only

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
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® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Number of AVX-512 FMA Units 2

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)