Xeon Silver 4509Y vs i5-8400T

Primary details

Comparing Core i5-8400T and Xeon Silver 4509Y 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
Cost-effectiveness evaluation	4.90	no data
Market segment	Desktop processor	Server
Series	Intel Core i5	no data
Power efficiency	12.69	no data
Architecture codename	Coffee Lake (2017−2019)	Sapphire Rapids (2023−2024)
Release date	2 April 2018 (6 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$182	$563

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-8400T and Xeon Silver 4509Y 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	6 (Hexa-Core)	8 (Octa-Core)
Threads	6	16
Base clock speed	1.7 GHz	2.6 GHz
Boost clock speed	3.3 GHz	4.1 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	17	no data
L1 cache	384 KB	80 KB (per core)
L2 cache	1.5 MB	2 MB (per core)
L3 cache	9 MB (shared)	22.5 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	149 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	84 °C
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i5-8400T and Xeon Silver 4509Y 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 (Uniprocessor)	2
Socket	FCLGA1151	FCLGA4677
Power consumption (TDP)	35 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400T and Xeon Silver 4509Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Deep Learning Boost	-	+

Security technologies

Core i5-8400T and Xeon Silver 4509Y technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400T and Xeon Silver 4509Y are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8400T and Xeon Silver 4509Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5 @ 4400 MT/s (1 DPC &2DPC)
Maximum memory size	128 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	42.671 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 630	N/A
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-8400T and Xeon Silver 4509Y integrated GPUs.

Number of displays supported

3

no data

Graphics image quality

Maximum display resolutions supported by Core i5-8400T and Xeon Silver 4509Y integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i5-8400T and Xeon Silver 4509Y integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-8400T and Xeon Silver 4509Y.

PCIe version	3.0	5
PCI Express lanes	16	80

Pros & cons summary

---

Recency	2 April 2018	14 December 2023
Physical cores	6	8
Threads	6	16
Power consumption (TDP)	35 Watt	125 Watt

---

Should you still have questions on choice between Core i5-8400T and Xeon Silver 4509Y, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---