Pentium Gold G6405 vs Xeon E5-2699 v3

Place in the ranking	597	1722
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	8.39	4.36
Architecture codename	Haswell-EP (2014−2015)	Comet Lake-R (2021)
Release date	8 September 2014 (10 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	no data	$64

Detailed specifications

Xeon E5-2699 v3 and Pentium Gold G6405 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	18 (Octadeca-Core)	2 (Dual-core)
Threads	36	4
Base clock speed	2.3 GHz	4.1 GHz
Boost clock speed	3.6 GHz	4.1 GHz
Bus rate	9.6 GT/s	8 GT/s
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	45 MB (shared)	4 MB (shared)
Chip lithography	22 nm	14 nm
Die size	356 mm²	no data
Maximum case temperature (TCase)	77 °C	72 °C
Number of transistors	2,600 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Xeon E5-2699 v3 and Pentium Gold G6405 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	1
Socket	FCLGA2011	1200
Power consumption (TDP)	145 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2699 v3 and Pentium Gold G6405. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2699 v3 and Pentium Gold G6405 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2699 v3 and Pentium Gold G6405 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2699 v3 and Pentium Gold G6405. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133	DDR4-2666
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel UHD Graphics 610

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2699 v3 and Pentium Gold G6405.

PCIe version	3.0	3.0
PCI Express lanes	40	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.

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 E5-2699 v3 12.86
+382%

Pentium Gold G6405 2.67

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 E5-2699 v3 20431
+381%

Pentium Gold G6405 4244

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Xeon E5-2699 v3 907
+7.3%

Pentium Gold G6405 845

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Xeon E5-2699 v3 6352
+268%

Pentium Gold G6405 1726

Gaming performance

Pros & cons summary

Performance score	12.86	2.67
Recency	8 September 2014	16 March 2021
Physical cores	18	2
Threads	36	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	145 Watt	15 Watt

Xeon E5-2699 v3 has a 381.6% higher aggregate performance score, and 800% more physical cores and 800% more threads.

Pentium Gold G6405, on the other hand, has an age advantage of 6 years, a 57.1% more advanced lithography process, and 866.7% lower power consumption.

The Xeon E5-2699 v3 is our recommended choice as it beats the Pentium Gold G6405 in performance tests.

Be aware that Xeon E5-2699 v3 is a server/workstation processor while Pentium Gold G6405 is a desktop one.

Should you still have questions on choice between Xeon E5-2699 v3 and Pentium Gold G6405, ask them in Comments section, and we shall answer.