Ryzen 3 3100 vs Pentium G645

Primary details

Comparing Pentium G645 and Ryzen 3 3100 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2550	974
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	33.70
Market segment	Desktop processor	Desktop processor
Series	no data	Matisse (Ryzen 3000 Desktop)
Power efficiency	1.31	10.93
Architecture codename	Sandy Bridge (2011−2013)	Matisse (Zen 2) (2019−2020)
Release date	2 September 2012 (12 years ago)	24 April 2020 (4 years ago)
Launch price (MSRP)	$80	$99

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 3 3100 has 56067% better value for money than Pentium G645.

Detailed specifications

Pentium G645 and Ryzen 3 3100 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)	4 (Quad-Core)
Threads	2	8
Base clock speed	2.9 GHz	3.6 GHz
Boost clock speed	2.9 GHz	3.9 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	96K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	3 MB (shared)	16 MB (shared)
Chip lithography	32 nm	7 nm
Die size	131 mm2	74 mm2
Maximum core temperature	69 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	504 million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Pentium G645 and Ryzen 3 3100 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
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and Ryzen 3 3100. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	+	+
FMA	-	+
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
Precision Boost 2	no data	+

Security technologies

Pentium G645 and Ryzen 3 3100 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 G645 and Ryzen 3 3100 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 G645 and Ryzen 3 3100. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	17 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for 2nd Generation Intel Processors	no data
Graphics max frequency	1.1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium G645 and Ryzen 3 3100 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and Ryzen 3 3100.

PCIe version	2.0	4.0
PCI Express lanes	no data	16

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.

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Pros & cons summary

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Performance score	0.90	7.51
Recency	2 September 2012	24 April 2020
Physical cores	2	4
Threads	2	8
Chip lithography	32 nm	7 nm

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Should you still have questions on choice between Pentium G645 and Ryzen 3 3100, ask them in Comments section, and we shall answer.

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