Xeon E-2278G vs EPYC 7251

Primary details

Comparing EPYC 7251 and Xeon E-2278G processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	806	718
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.82	28.43
Market segment	Server	Server
Series	AMD EPYC	Intel Xeon E
Power efficiency	7.41	12.72
Architecture codename	Naples (2017−2018)	Coffee Lake-S WS (2018−2019)
Release date	29 June 2017 (7 years ago)	27 May 2019 (5 years ago)
Launch price (MSRP)	$574	$494

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2278G has 908% better value for money than EPYC 7251.

Detailed specifications

EPYC 7251 and Xeon E-2278G 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	8 (Octa-Core)	8 (Octa-Core)
Threads	16	16
Base clock speed	2.1 GHz	3.4 GHz
Boost clock speed	2.9 GHz	5 GHz
Bus type	no data	DMI 3.0
Bus rate	no data	4 × 8 GT/s
Multiplier	21	34
L1 cache	96K (per core)	512 KB
L2 cache	512K (per core)	2 MB
L3 cache	32 MB (shared)	16 MB (shared)
Chip lithography	14 nm	14 nm
Die size	192 mm2	174 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	no data	73 °C
Number of transistors	4,800 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7251 and Xeon E-2278G 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	2 (Multiprocessor)	1 (Uniprocessor)
Socket	TR4	FCLGA1151
Power consumption (TDP)	120 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7251 and Xeon E-2278G. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	-	+
Idle States	no data	+
Thermal Monitoring	-	+

Security technologies

EPYC 7251 and Xeon E-2278G technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
Secure Key	no data	+
MPX	-	+
SGX	no data	Yes with both Intel® SPS and Intel® ME
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7251 and Xeon E-2278G 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 EPYC 7251 and Xeon E-2278G. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4-2666
Maximum memory size	2 TiB	128 GB
Max memory channels	8	2
Maximum memory bandwidth	153.652 GB/s	42.671 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics P630
Max video memory	no data	128 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.2 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of EPYC 7251 and Xeon E-2278G integrated GPUs.

Number of displays supported

no data

3

Graphics image quality

Maximum display resolutions supported by EPYC 7251 and Xeon E-2278G integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@24Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz
Max resolution over VGA	no data	N/A

Graphics API support

APIs supported by EPYC 7251 and Xeon E-2278G integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by EPYC 7251 and Xeon E-2278G.

PCIe version	3.0	3.0
PCI Express lanes	128	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	9.58	10.96
Recency	29 June 2017	27 May 2019
Power consumption (TDP)	120 Watt	80 Watt

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Should you still have questions on choice between EPYC 7251 and Xeon E-2278G, ask them in Comments section, and we shall answer.

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