Ryzen 9 3950X vs i7-4578U

Primary details

Comparing Core i7-4578U and Ryzen 9 3950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1942	205
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	16.85
Market segment	Laptop	Desktop processor
Series	Intel Core i7	AMD Ryzen 9
Power efficiency	6.57	21.98
Architecture codename	Haswell (2013−2015)	Matisse (Zen 2) (2019−2020)
Release date	21 July 2014 (10 years ago)	11 June 2019 (5 years ago)
Launch price (MSRP)	$426	$799

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-4578U 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 cores	2 (Dual-core)	16 (Hexadeca-Core)
Threads	4	32
Base clock speed	3 GHz	3.5 GHz
Boost clock speed	3.5 GHz	4.7 GHz
Bus rate	5 GT/s	no data
L1 cache	128 KB	1 MB
L2 cache	512 KB	8 MB
L3 cache	4 MB	64 MB
Chip lithography	22 nm	7 nm, 12 nm
Die size	181 mm2	2 x 72 mm + 125 mm (IO-Die) mm2
Maximum core temperature	100 °C	no data
Number of transistors	1300 Million	19,200 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Core i7-4578U 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 configuration	1	1 (Uniprocessor)
Socket	FCBGA1168	AM4
Power consumption (TDP)	28 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4578U and Ryzen 9 3950X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	86x 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 Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
FDI	+	no data
Precision Boost 2	no data	+

Security technologies

Core i7-4578U 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
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4578U 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 i7-4578U and Ryzen 9 3950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4 Dual-channel
Maximum memory size	16 GB	128 GB
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	51.196 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Graphics 5100	-
Max video memory	2 GB	-
Quick Sync Video	+	-
Clear Video HD	+	-
Graphics max frequency	1.2 GHz	-
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Core i7-4578U and Ryzen 9 3950X integrated GPUs.

Number of displays supported	3	-
eDP	+	-
DisplayPort	+	-
HDMI	+	-
VGA	+	-

Graphics image quality

Maximum display resolutions supported by Core i7-4578U and Ryzen 9 3950X integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	3200x2000@60Hz	-
Max resolution over DisplayPort	3200x2000@60Hz	-
Max resolution over VGA	N/A	-

Graphics API support

APIs supported by Core i7-4578U and Ryzen 9 3950X integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	-
OpenGL	4.3	-

Peripherals

Specifications and connection of peripherals supported by Core i7-4578U and Ryzen 9 3950X.

PCIe version	2	no data
PCI Express lanes	12	no 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.

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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.

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Pros & cons summary

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Performance score	1.98	24.85
Recency	21 July 2014	11 June 2019
Physical cores	2	16
Threads	4	32
Chip lithography	22 nm	7 nm
Power consumption (TDP)	28 Watt	105 Watt

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Should you still have questions on choice between Core i7-4578U and Ryzen 9 3950X, ask them in Comments section, and we shall answer.

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