Ryzen 9 3900XT vs i7-8650U

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Aggregate performance score

Core i7-8650U
2017
4 cores / 8 threads, 15 Watt
3.93
Ryzen 9 3900XT
2020
12 cores / 24 threads, 105 Watt
20.56
+423%

Ryzen 9 3900XT outperforms Core i7-8650U by a whopping 423% based on our aggregate benchmark results.

Primary details

Comparing Core i7-8650U and Ryzen 9 3900XT processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1444274
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data26.07
Market segmentLaptopDesktop processor
SeriesIntel Core i7AMD Ryzen 9
Power efficiency24.7918.53
Architecture codenameKaby Lake Refresh (2017−2019)Matisse 2 (2020)
Release date21 August 2017 (7 years ago)7 July 2020 (4 years ago)
Launch price (MSRP)$409$499

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-8650U and Ryzen 9 3900XT 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)12 (Dodeca-Core)
Threads824
Base clock speed1.9 GHz3.8 GHz
Boost clock speed4.2 GHz4.7 GHz
Bus typeOPIno data
Bus rate4 GT/sno data
Multiplier19no data
L1 cache64K (per core)96K (per core)
L2 cache256K (per core)512K (per core)
L3 cache8 MB (shared)64 MB
Chip lithography14 nm7 nm, 12 nm
Die size123 mm274 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)72 °C95 °C
Number of transistorsno data3,800 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Core i7-8650U and Ryzen 9 3900XT 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
SocketFCBGA1356,FC-BGA1356AM4
Power consumption (TDP)15 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-8650U and Ryzen 9 3900XT. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI++
AVX++
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
SIPP+-
Smart Response+no data
Precision Boost 2no data+

Security technologies

Core i7-8650U and Ryzen 9 3900XT technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-8650U and Ryzen 9 3900XT 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 i7-8650U and Ryzen 9 3900XT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-3200
Maximum memory size32 GB128 GB
Max memory channels22
Maximum memory bandwidth38.397 GB/s51.196 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics 620-
Max video memory32 GB-
Quick Sync Video+-
Clear Video+-
Clear Video HD+-
Graphics max frequency1.15 GHz-

Graphics interfaces

Available interfaces and connections of Core i7-8650U and Ryzen 9 3900XT integrated GPUs.

Number of displays supported3-
eDP+-
DisplayPort+-
HDMI+-
DVI+-

Graphics image quality

Maximum display resolutions supported by Core i7-8650U and Ryzen 9 3900XT integrated GPUs, including resolutions over different interfaces.

4K resolution support+-
Max resolution over HDMI 1.44096 x 2304@24Hz-
Max resolution over eDP4096 x 2304@60Hz-
Max resolution over DisplayPort4096 x 2304@60Hz-

Graphics API support

APIs supported by Core i7-8650U and Ryzen 9 3900XT integrated GPUs, sometimes API versions are included.

DirectX12-
OpenGL4.4-

Peripherals

Specifications and connection of peripherals supported by Core i7-8650U and Ryzen 9 3900XT.

PCIe version3.04.0
PCI Express lanes12no 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.

i7-8650U 3.93
Ryzen 9 3900XT 20.56
+423%

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.

i7-8650U 6248
Ryzen 9 3900XT 32660
+423%

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.

i7-8650U 895
Ryzen 9 3900XT 1741
+94.5%

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.

i7-8650U 2710
Ryzen 9 3900XT 9909
+266%

Gaming performance

Pros & cons summary


Performance score 3.93 20.56
Recency 21 August 2017 7 July 2020
Physical cores 4 12
Threads 8 24
Chip lithography 14 nm 7 nm
Power consumption (TDP) 15 Watt 105 Watt

i7-8650U has 600% lower power consumption.

Ryzen 9 3900XT, on the other hand, has a 423.2% higher aggregate performance score, an age advantage of 2 years, 200% more physical cores and 200% more threads, and a 100% more advanced lithography process.

The Ryzen 9 3900XT is our recommended choice as it beats the Core i7-8650U in performance tests.

Be aware that Core i7-8650U is a notebook processor while Ryzen 9 3900XT is a desktop one.


Should you still have questions on choice between Core i7-8650U and Ryzen 9 3900XT, 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 i7-8650U
Core i7-8650U
AMD Ryzen 9 3900XT
Ryzen 9 3900XT

Similar processor comparisons

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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 i7-8650U or Ryzen 9 3900XT, agree or disagree with our judgements, or report an error or mismatch.