Ryzen 5 8645HS vs Xeon E3-1275 v2

Primary details

Comparing Xeon E3-1275 v2 and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1374	497
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.84	no data
Market segment	Server	Laptop
Power efficiency	5.13	30.13
Architecture codename	Ivy Bridge (2012−2013)	Hawk Point-HS (Zen 4) (2023−2024)
Release date	14 May 2012 (12 years ago)	6 December 2023 (less than a year ago)
Launch price (MSRP)	$808	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1275 v2 and Ryzen 5 8645HS 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	4 (Quad-Core)	6 (Hexa-Core)
Threads	8	12
Base clock speed	3.5 GHz	4.3 GHz
Boost clock speed	3.9 GHz	5 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	8 MB (shared)	16 MB (shared)
Chip lithography	22 nm	4 nm
Die size	160 mm2	178 mm2
Maximum core temperature	no data	100 °C
Number of transistors	1,400 million	25,000 million
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E3-1275 v2 and Ryzen 5 8645HS 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	FP8
Power consumption (TDP)	77 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1275 v2 and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	+	no data
FDI	+	no data
Fast Memory Access	+	no data
Precision Boost 2	no data	+

Security technologies

Xeon E3-1275 v2 and Ryzen 5 8645HS technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1275 v2 and Ryzen 5 8645HS 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 Xeon E3-1275 v2 and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	32.77 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD P4000	AMD Radeon 760M
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.25 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Xeon E3-1275 v2 and Ryzen 5 8645HS integrated GPUs.

Number of displays supported

3

no data

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1275 v2 and Ryzen 5 8645HS.

PCIe version	3.0	4.0
PCI Express lanes	no data	20

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	4.33	14.87
Recency	14 May 2012	6 December 2023
Physical cores	4	6
Threads	8	12
Chip lithography	22 nm	4 nm
Power consumption (TDP)	77 Watt	45 Watt

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Should you still have questions on choice between Xeon E3-1275 v2 and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.

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