Xeon 6516P-B vs E3-1285L v4

Primary details

Comparing Xeon E3-1285L v4 and Xeon 6516P-B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1267	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	7.38	no data
Designer	Intel	Intel
Architecture codename	Broadwell-DT (2015)	Granite Rapids (2024−2025)
Release date	2 June 2015 (9 years ago)	24 February 2025 (recently)
Launch price (MSRP)	no data	$1,544

Detailed specifications

Xeon E3-1285L v4 and Xeon 6516P-B 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)	20 (Icosa-Core)
Threads	8	40
Base clock speed	3.4 GHz	2.3 GHz
Boost clock speed	3.8 GHz	3.5 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	112 KB (per core)
L2 cache	256K (per core)	2 MB (per core)
L3 cache	6 MB (shared)	80 MB (shared)
Chip lithography	14 nm	5 nm
Die size	160 mm2	598 mm2
Maximum case temperature (TCase)	no data	85 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E3-1285L v4 and Xeon 6516P-B 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	Intel BGA 4368
Power consumption (TDP)	65 Watt	145 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1285L v4 and Xeon 6516P-B. 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

Security technologies

Xeon E3-1285L v4 and Xeon 6516P-B technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1285L v4 and Xeon 6516P-B are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1285L v4 and Xeon 6516P-B. 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	1.15 GHz	no data
Execution Units	48	no data

Graphics interfaces

Available interfaces and connections of Xeon E3-1285L v4 and Xeon 6516P-B integrated GPUs.

Number of displays supported

3

no data

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1285L v4 and Xeon 6516P-B.

PCIe version	3.0	5.0
PCI Express lanes	16	32

Pros & cons summary

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Recency	2 June 2015	24 February 2025
Physical cores	4	20
Threads	8	40
Chip lithography	14 nm	5 nm
Power consumption (TDP)	65 Watt	145 Watt

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