Ryzen 9 3950X vs i5-7400

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Aggregate performance score

Core i5-7400
2017
4 cores / 4 threads, 65 Watt
3.45
Ryzen 9 3950X
2019
16 cores / 32 threads, 105 Watt
24.37
+606%

Ryzen 9 3950X outperforms Core i5-7400 by a whopping 606% based on our aggregate benchmark results.

Primary details

Comparing Core i5-7400 and Ryzen 9 3950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1557210
Place by popularity48not in top-100
Cost-effectiveness evaluation0.8818.76
Market segmentDesktop processorDesktop processor
SeriesIntel Core i5AMD Ryzen 9
Power efficiency5.0221.96
Architecture codenameKaby Lake (2016−2019)Matisse (Zen 2) (2019−2020)
Release date3 January 2017 (7 years ago)14 November 2019 (5 years ago)
Launch price (MSRP)$182$799

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 3950X has 2032% better value for money than i5-7400.

Detailed specifications

Core i5-7400 and Ryzen 9 3950X 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)16 (Hexadeca-Core)
Threads432
Base clock speed3 GHz3.5 GHz
Boost clock speed3.5 GHz4.7 GHz
Bus typeDMI 3.0no data
Bus rate8 GT/sno data
Multiplier30no data
L1 cache64K (per core)96K (per core)
L2 cache256K (per core)512K (per core)
L3 cache6 MB (shared)64 MB
Chip lithography14 nm7 nm, 12 nm
Die sizeno data2 x 72 mm + 125 mm (IO-Die) mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data19,200 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+

Compatibility

Information on Core i5-7400 and Ryzen 9 3950X 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCLGA1151AM4
Power consumption (TDP)65 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-7400 and Ryzen 9 3950X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX286x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Precision Boost 2no data+

Security technologies

Core i5-7400 and Ryzen 9 3950X technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-7400 and Ryzen 9 3950X 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 i5-7400 and Ryzen 9 3950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4 Dual-channel
Maximum memory size64 GB128 GB
Max memory channels2no data
Maximum memory bandwidth38.397 GB/s51.196 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 630-
Max video memory64 GB-
Quick Sync Video+-
Clear Video+-
Clear Video HD+-
Graphics max frequency1 GHz-
InTru 3D+-

Graphics interfaces

Available interfaces and connections of Core i5-7400 and Ryzen 9 3950X integrated GPUs.

Number of displays supported3-

Graphics image quality

Maximum display resolutions supported by Core i5-7400 and Ryzen 9 3950X integrated GPUs, including resolutions over different interfaces.

4K resolution support+-
Max resolution over HDMI 1.44096x2304@24Hz-
Max resolution over eDP4096x2304@60Hz-
Max resolution over DisplayPort4096x2304@60Hz-

Graphics API support

APIs supported by Core i5-7400 and Ryzen 9 3950X integrated GPUs, sometimes API versions are included.

DirectX12-
OpenGL4.5-

Peripherals

Specifications and connection of peripherals supported by Core i5-7400 and Ryzen 9 3950X.

PCIe version3.0no data
PCI Express lanes16no data

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.

i5-7400 3.45
Ryzen 9 3950X 24.37
+606%

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.

i5-7400 5475
Ryzen 9 3950X 38716
+607%

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.

i5-7400 1192
Ryzen 9 3950X 1730
+45.1%

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.

i5-7400 3279
Ryzen 9 3950X 10784
+229%

Gaming performance

Pros & cons summary


Performance score 3.45 24.37
Recency 3 January 2017 14 November 2019
Physical cores 4 16
Threads 4 32
Chip lithography 14 nm 7 nm
Power consumption (TDP) 65 Watt 105 Watt

i5-7400 has 61.5% lower power consumption.

Ryzen 9 3950X, on the other hand, has a 606.4% higher aggregate performance score, an age advantage of 2 years, 300% more physical cores and 700% more threads, and a 100% more advanced lithography process.

The Ryzen 9 3950X is our recommended choice as it beats the Core i5-7400 in performance tests.


Should you still have questions on choice between Core i5-7400 and Ryzen 9 3950X, ask them in Comments section, and we shall answer.

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Intel Core i5-7400
Core i5-7400
AMD Ryzen 9 3950X
Ryzen 9 3950X

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

Here you can ask a question about Core i5-7400 or Ryzen 9 3950X, agree or disagree with our judgements, or report an error or mismatch.