Xeon E7-8891 v3 vs E7-4890 v2

Place in the ranking	287	543
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	11.89	7.81
Architecture codename	no data	Haswell-EX (2015)
Release date	1 January 2014 (10 years ago)	1 June 2015 (9 years ago)

Detailed specifications

Xeon E7-4890 v2 and Xeon E7-8891 v3 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	15 (Pentadeca-Core)	10 (Deca-Core)
Threads	30	20
Base clock speed	2.8 GHz	2.8 GHz
Boost clock speed	3.4 GHz	3.5 GHz
Bus rate	8 GT/s	9.6 GT/s
L1 cache	no data	64K (per core)
L2 cache	no data	256K (per core)
L3 cache	37.5 MB	45 MB (shared)
Chip lithography	22 nm	22 nm
Die size	no data	160 mm²
Maximum core temperature	77 °C	no data
Maximum case temperature (TCase)	no data	79 °C
Number of transistors	no data	1,400 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E7-4890 v2 and Xeon E7-8891 v3 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	4	8
Socket	FCLGA2011	FCLGA2011
Power consumption (TDP)	155 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E7-4890 v2 and Xeon E7-8891 v3. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® AVX2
AES-NI	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
PAE	46 Bit	46 Bit

Security technologies

Xeon E7-4890 v2 and Xeon E7-8891 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E7-4890 v2 and Xeon E7-8891 v3 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E7-4890 v2 and Xeon E7-8891 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066, DDR3-1333, DDR3-1600	DDR4-1333/1600/1866, DDR3-1066/1333/1600
Maximum memory size	1.5 TB	1.5 TB
Max memory channels	4	4
Maximum memory bandwidth	85 GB/s	85 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon E7-4890 v2 and Xeon E7-8891 v3.

PCIe version	3.0	3.0
PCI Express lanes	32	32

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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.

Xeon E7-4890 v2 19.85
+43.1%

Xeon E7-8891 v3 13.87

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon E7-4890 v2 30946
+43.2%

Xeon E7-8891 v3 21615