Intel Core i9 12900 (12th Gen) vs. AMD Ryzen 9 3900XT

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Core i9 12900 (12th Gen) and AMD Ryzen 9 3900XT. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.

CPUs Specifications Comparison

Intel Core i9 12900 (12th Gen) vs. AMD Ryzen 9 3900XT Benchmark Chart
GENERAL Intel Core i9 12900 (12th Gen) AMD Ryzen 9 3900XT
Product Type Processor Processor
PROCESSOR Intel Core i9 12900 (12th Gen) AMD Ryzen 9 3900XT
Type Intel Core i9 12900 (12th Gen) AMD Ryzen 9 3900XT
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA1700 Socket Socket AM4
Manufacturing Process 10 nm 7 nm
Thermal Design Power 202 W 105 W
Thermal Specification 100 °C -
PCI Express Revision 4.0/5.0 4.0
PCI Express Configurations 1x16+4, 2x8+4 -
PCI Express Lanes Qty 20 -
Architecture Features Hyper-Threading Technology, Intel Virtualization Technology, Intel Turbo Boost Technology 2.0, Intel Turbo Boost Max Technology 3.0, Intel Thread Director AMD Ryzen Master Utility, AMD StoreMI Technology, "Zen 2" Core Architecture
PERFORMANCE
Number of Cores 16-core 12-core
Number of Threads 24 threads 24 threads
Clock Speed (Frequency) 2.4 GHz (P-core) / 1.8 GHz (E-core) 3.8 GHz
Max Turbo Speed 5.1 GHz (P-core) / 3.8 GHz (E-core) 4.7 GHz
CACHE MEMORY
Cache 30 MB 64 MB
Cache Memory Details L3 - Smart Cache - 30 MB
L2 - 14 MB
L2 - 6 MB
L3 - 64 MB
INTEGRATED GRAPHICS (GPU) Intel Core i9 12900 (12th Gen) AMD Ryzen 9 3900XT
Type Intel UHD Graphics 770 -
Base Frequency 300 MHz -
Max Dynamic Frequency 1.55 GHz -
Max Supported Resolution 5120x3200@120Hz (eDP), 7680x4320@60Hz (DP), 4096x2160@60Hz (HDMI) -
Features Intel Clear Video HD Technology, Intel Quick Sync Video, Quad Display Capable -
MISCELLANEOUS Intel Core i9 12900 (12th Gen) AMD Ryzen 9 3900XT
Service & Support Limited warranty - 3 years -
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