Ryzen 7 7800X vs i9-9900X

Primary details

Comparing Core i9-9900X and Ryzen 7 7800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	529	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.25	no data
Market segment	Desktop processor	Desktop processor
Series	Intel Core i9	AMD Ryzen 7
Power efficiency	7.89	no data
Architecture codename	Skylake (server) (2017−2019)	Zen 4
Release date	19 October 2018 (6 years ago)	no data (2024 years ago)
Launch price (MSRP)	$989	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9900X and Ryzen 7 7800X 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	10 (Deca-Core)	8 (Octa-Core)
Threads	20	16
Base clock speed	3.5 GHz	4.2 GHz
Boost clock speed	4.5 GHz	5 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	35	no data
L1 cache	64 KB (per core)	512 KB
L2 cache	1 MB (per core)	8 MB
L3 cache	19.25 MB (shared)	96 MB
Chip lithography	14 nm	5 nm, 6 nm
Die size	no data	71+122 mm
Maximum core temperature	92 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	+

Compatibility

Information on Core i9-9900X and Ryzen 7 7800X 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 (Uniprocessor)	no data
Socket	FCLGA2066	no data
Power consumption (TDP)	165 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900X and Ryzen 7 7800X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Turbo Boost Max 3.0	+	no data

Security technologies

Core i9-9900X and Ryzen 7 7800X technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900X and Ryzen 7 7800X are enumerated here.

VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900X and Ryzen 7 7800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	no data
Maximum memory size	128 GB	128 GB
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9900X and Ryzen 7 7800X.

PCIe version	3.0	no data
PCI Express lanes	44	no data

Pros & cons summary

---

Physical cores	10	8
Threads	20	16
Chip lithography	14 nm	5 nm
Power consumption (TDP)	165 Watt	120 Watt

---

Should you still have questions on choice between Core i9-9900X and Ryzen 7 7800X, 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.

---