Ryzen 9 5900X vs Pentium G840

Primary details

Comparing Pentium G840 and Ryzen 9 5900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2577	189
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.61	33.03
Market segment	Desktop processor	Desktop processor
Series	no data	AMD Ryzen 9
Architecture codename	Sandy Bridge (2011−2013)	Vermeer (Zen3) (2020−2022)
Release date	22 May 2011 (13 years ago)	8 October 2020 (3 years ago)
Launch price (MSRP)	$60	$549

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 5900X has 616% better value for money than Pentium G840.

Detailed specifications

Pentium G840 and Ryzen 9 5900X 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)	12 (Dodeca-Core)
Threads	2	24
Base clock speed	2.8 GHz	3.7 GHz
Boost clock speed	2.8 GHz	4.8 GHz
Multiplier	no data	37
L1 cache	64 KB (per core)	768 KB
L2 cache	256 KB (per core)	6 MB
L3 cache	3 MB (shared)	64 MB
Chip lithography	32 nm	7 nm, 12 nm
Die size	131 mm2	2x 74 mm2(CCD) + 125 mm2 (IOD)
Maximum core temperature	69 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	504 million	0 Million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Pentium G840 and Ryzen 9 5900X 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
Socket	FCLGA1155	AM4 (1331)
Power consumption (TDP)	65 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G840 and Ryzen 9 5900X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	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	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	no data
Precision Boost 2	no data	+

Security technologies

Pentium G840 and Ryzen 9 5900X technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G840 and Ryzen 9 5900X 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 Pentium G840 and Ryzen 9 5900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	21 GB/s	51.196 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	-
Clear Video HD	-	-
Graphics max frequency	1.1 GHz	-
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Pentium G840 and Ryzen 9 5900X integrated GPUs.

Number of displays supported

2

-

Peripherals

Specifications and connection of peripherals supported by Pentium G840 and Ryzen 9 5900X.

PCIe version

2.0

4.0

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.

Pros & cons summary

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Performance score	0.81	25.30
Recency	22 May 2011	8 October 2020
Physical cores	2	12
Threads	2	24
Chip lithography	32 nm	7 nm
Power consumption (TDP)	65 Watt	105 Watt

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Should you still have questions on choice between Pentium G840 and Ryzen 9 5900X, ask them in Comments section, and we shall answer.

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