Ryzen 5 7640U vs Core i7-6700K

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Aggregate performance score

Core i7-6700K
2015
4 cores / 8 threads, 91 Watt
5.77
Ryzen 5 7640U
2023
6 cores / 12 threads, 15 Watt
13.98
+142%

Ryzen 5 7640U outperforms Core i7-6700K by a whopping 142% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6700K and Ryzen 5 7640U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking1056482
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.79no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7 (Desktop)no data
Architecture codenameSkylake (2015−2016)Phoenix-U (Zen 4)
Release date1 September 2015 (8 years ago)3 May 2023 (1 year ago)
Launch price (MSRP)$339no data
Current price$160 (0.5x MSRP)no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-6700K and Ryzen 5 7640U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)6 (Hexa-Core)
Threads812
Base clock speed4 GHz3.5 GHz
Boost clock speed4.2 GHz4.9 GHz
Bus support4 × 8 GT/sno data
L1 cache256 KB64 KB (per core)
L2 cache1 MB1 MB (per core)
L3 cache8 MB (shared)16 MB (shared)
Chip lithography14 nm4 nm
Die size122 mm2178 mm2
Maximum core temperature64 °C100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors1750 Million25,000 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplierYesNo

Compatibility

Information on Core i7-6700K and Ryzen 5 7640U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCLGA1151FP8
Power consumption (TDP)91 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6700K and Ryzen 5 7640U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2DDR5-5600/LPDDR5x-7500 RAM, PCIe 4, Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+no data
Idle States+no data
Thermal Monitoring+no data
SIPP-no data
StatusDiscontinuedno data

Security technologies

Core i7-6700K and Ryzen 5 7640U technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data
Secure Key+no data
MPX+no data
Identity Protection+no data
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6700K and Ryzen 5 7640U are enumerated here.

AMD-V++
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6700K and Ryzen 5 7640U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4DDR5
Maximum memory size64 GBno data
Max memory channels2no data
Maximum memory bandwidth34.1 GB/sno data
ECC memory support-no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 530AMD Radeon 760M
Max video memory64 GBno data
Quick Sync Video+no data
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.15 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-6700K and Ryzen 5 7640U integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+no data
HDMI+no data
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i7-6700K and Ryzen 5 7640U integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i7-6700K and Ryzen 5 7640U integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i7-6700K and Ryzen 5 7640U.

PCIe version3.04.0
PCI Express lanes1620

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-6700K 5.77
Ryzen 5 7640U 13.98
+142%

Ryzen 5 7640U outperforms Core i7-6700K by 142% based on our aggregate benchmark results.


Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

i7-6700K 8929
Ryzen 5 7640U 21622
+142%

Ryzen 5 7640U outperforms Core i7-6700K by 142% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

i7-6700K 1483
Ryzen 5 7640U 2171
+46.4%

Ryzen 5 7640U outperforms Core i7-6700K by 46% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

i7-6700K 4900
Ryzen 5 7640U 8858
+80.8%

Ryzen 5 7640U outperforms Core i7-6700K by 81% in GeekBench 5 Multi-Core.

Gaming performance

Pros & cons summary


Performance score 5.77 13.98
Integrated graphics card 2.59 15.37
Recency 1 September 2015 3 May 2023
Physical cores 4 6
Threads 8 12
Chip lithography 14 nm 4 nm
Power consumption (TDP) 91 Watt 15 Watt

The Ryzen 5 7640U is our recommended choice as it beats the Core i7-6700K in performance tests.

Note that Core i7-6700K is a desktop processor while Ryzen 5 7640U is a notebook one.


Should you still have questions on choice between Core i7-6700K and Ryzen 5 7640U, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-6700K
Core i7-6700K
AMD Ryzen 5 7640U
Ryzen 5 7640U

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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Questions & comments

Here you can ask a question about Core i7-6700K or Ryzen 5 7640U, agree or disagree with our judgements, or report an error or mismatch.