EPYC 9645 vs Xeon E3-1265L v4

Primary details

Comparing Xeon E3-1265L v4 and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1355	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	11.84	no data
Architecture codename	Broadwell-DT (2015)	Turin (2024)
Release date	2 June 2015 (9 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$11,048

Detailed specifications

Xeon E3-1265L v4 and EPYC 9645 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)	96
Threads	8	192
Base clock speed	2.3 GHz	2.3 GHz
Boost clock speed	3.3 GHz	3.7 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	256K (per core)	1 MB (per core)
L3 cache	6 MB (shared)	256 MB (shared)
Chip lithography	14 nm	3 nm
Die size	182 mm2	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E3-1265L v4 and EPYC 9645 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	2
Socket	FCLGA1150	SP5
Power consumption (TDP)	35 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1265L v4 and EPYC 9645. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
eDRAM	128 MB	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
FDI	+	no data
Precision Boost 2	no data	+

Security technologies

Xeon E3-1265L v4 and EPYC 9645 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1265L v4 and EPYC 9645 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 E3-1265L v4 and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3L-1333, DDR3L-1600, DDR3L-1866	DDR5
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	29.8 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Pro P6300	N/A
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Graphics max frequency	1.05 GHz	no data
Execution Units	48	no data

Graphics interfaces

Available interfaces and connections of Xeon E3-1265L v4 and EPYC 9645 integrated GPUs.

Number of displays supported

3

no data

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1265L v4 and EPYC 9645.

PCIe version	3.0	5.0
PCI Express lanes	16	128

Pros & cons summary

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Recency	2 June 2015	10 October 2024
Physical cores	4	96
Threads	8	192
Chip lithography	14 nm	3 nm
Power consumption (TDP)	35 Watt	320 Watt

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