Xeon E3-1275 vs Ryzen Threadripper PRO 5945WX

Primary details

Comparing Ryzen Threadripper PRO 5945WX and Xeon E3-1275 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	167	1453
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.94
Market segment	Server	Server
Series	AMD Ryzen Threadripper	no data
Architecture codename	Chagall PRO (2022)	Sandy Bridge (2011−2013)
Release date	8 March 2022 (2 years ago)	3 April 2011 (13 years ago)
Launch price (MSRP)	no data	$450
Current price	no data	$332 (0.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen Threadripper PRO 5945WX and Xeon E3-1275 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	12 (Dodeca-Core)	4 (Quad-Core)
Threads	24	8
Base clock speed	4.1 GHz	3.4 GHz
Boost clock speed	4.5 GHz	3.8 GHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	512K (per core)	256 KB (per core)
L3 cache	64 MB	8 MB (shared)
Chip lithography	7 nm	32 nm
Die size	4x 81 mm2	216 mm2
Maximum core temperature	no data	73 °C
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	16,600 million	1,160 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	No

Compatibility

Information on Ryzen Threadripper PRO 5945WX and Xeon E3-1275 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	WRX8	LGA1155
Power consumption (TDP)	280 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper PRO 5945WX and Xeon E3-1275. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
Idle States	no data	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	+
Demand Based Switching	no data	+
FDI	no data	+
Fast Memory Access	no data	+
Status	no data	Discontinued

Security technologies

Ryzen Threadripper PRO 5945WX and Xeon E3-1275 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 5945WX and Xeon E3-1275 are enumerated here.

AMD-V	+	no data
VT-d	no data	+
VT-x	no data	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 5945WX and Xeon E3-1275. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR3
Maximum memory size	2 TiB	32 GB
Max memory channels	no data	2
Maximum memory bandwidth	204.8 GB/s	21 GB/s
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	-	Intel HD P3000
Quick Sync Video	-	+
Clear Video HD	-	+
Graphics max frequency	-	1.35 GHz
InTru 3D	-	+

Graphics interfaces

Available interfaces and connections of Ryzen Threadripper PRO 5945WX and Xeon E3-1275 integrated GPUs.

Number of displays supported

-

2

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper PRO 5945WX and Xeon E3-1275.

PCIe version	4.0	2.0
PCI Express lanes	128	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.

Ryzen Threadripper PRO 5945WX outperforms Xeon E3-1275 by 636% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	26.21	3.56
Recency	8 March 2022	3 April 2011
Physical cores	12	4
Threads	24	8
Chip lithography	7 nm	32 nm
Power consumption (TDP)	280 Watt	95 Watt

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Should you still have questions on choice between Ryzen Threadripper PRO 5945WX and Xeon E3-1275, ask them in Comments section, and we shall answer.

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