Comparison of AMD Ryzen 9 3900XT and Intel Core i9-11900KF

Attribute	Intel Core i9-11900KF ×	AMD Ryzen 9 3900XT ×
General Information
Brand	Intel	AMD
Series	Intel Core i9	AMD Ryzen
Model	Intel Core i9-11900KF	AMD Ryzen 9 3900XT
CPU Cores and Base Frequency
CPU Cores	8	12
Frequency (GHz)	3.5	4.1
CPU Threads	16	24
Core architecture	normal	normal
Hyperthreading	+	+
Overclocking	+	+
Turbo (1 Core) (GHz)	5.3	4.7
Turbo (8 Cores) (GHz)	4.8	-
Turbo (12 Cores) (GHz)	-	4.6
Encryption
AES-NI	+	+
Hardware codec support
JPEG	No	No
h264	No	No
h265 / HEVC (8 bit)	No	No
h265 / HEVC (10 bit)	No	No
VP8	No	No
AV1	No	No
VC-1	No	No
VP9	No	No
AVC	No	No
Memory And PCIe
Memory type	DDR4-3200	DDR4-3200
Max. Memory (GB)	128	128
PCIe lanes	20	20
PCIe version	4.0	4.0
ECC	-	+
Memory channels	2	2
Technical details
Release date (year)	2021	2020
Technology (Nm)	14	7
Socket	LGA 1200	AM4
Virtualization	vt-d vt-x vt-x ept	amd-v sev
L3-Cache (MB)	16	64
L2-Cache (MB)	4	-
Architecture	Rocket Lake	Zen 2 Refresh
Instruction set (ISA)	x86-64 (64 bit)	x86-64 (64 bit)
Thermal Management
Temp junction max (°C)	100	95
TDP (PL2) (W)	251	142
TDP down (W)	95	-
TDP (PL1) (W)	125	105
Benchmarks
Estimated results for PassMark CPU Mark	28,465	33,022
Geekbench 5, 64bit (Single-Core)	1,910	1,414
Geekbench 5, 64bit (Multi-Core)	11,350	12,974
Cinebench R15 (Single-Core)	262	219
Cinebench R15 (Multi-Core)	2,575	3,192
Cinebench R20 (Single-Core)	645	539
Cinebench R20 (Multi-Core)	6,214	7,244
Cinebench R23 (Single-Core)	1,671	1,354
Cinebench R23 (Multi-Core)	16,211	18,511