Ultra 9 275HX vs Xeon w5-2455X

Primary details

Comparing Xeon w5-2455X and Core Ultra 9 275HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	225	82
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	61.92	no data
Market segment	Server	Laptop
Power efficiency	11.23	65.94
Architecture codename	Sapphire Rapids (2023−2024)	no data
Release date	15 February 2023 (1 year ago)	1 January 2025 (less than a year ago)
Launch price (MSRP)	$1,039	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon w5-2455X and Core Ultra 9 275HX 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	12 (Dodeca-Core)	24 (Tetracosa-Core)
Performance-cores	12	8
Efficient-cores	no data	16
Threads	24	24
Base clock speed	3.2 GHz	no data
Boost clock speed	4.6 GHz	5.4 GHz
L1 cache	80 KB (per core)	no data
L2 cache	2 MB (per core)	no data
L3 cache	30 MB	36 MB
Chip lithography	Intel 7 nm	no data
Maximum case temperature (TCase)	77 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Xeon w5-2455X and Core Ultra 9 275HX 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	no data
Socket	FCLGA4677	FCBGA2114
Power consumption (TDP)	200 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon w5-2455X and Core Ultra 9 275HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	no data	+
Thermal Monitoring	-	+
Turbo Boost Max 3.0	+	+
Deep Learning Boost	+	+
Supported AI Software Frameworks	-	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Xeon w5-2455X and Core Ultra 9 275HX technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon w5-2455X and Core Ultra 9 275HX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon w5-2455X and Core Ultra 9 275HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	DDR5-6400
Maximum memory size	2 TB	192 GB
Max memory channels	4	2
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel® Graphics
Quick Sync Video	-	+
Graphics max frequency	no data	1.9 GHz

Graphics interfaces

Available interfaces and connections of Xeon w5-2455X and Core Ultra 9 275HX integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon w5-2455X and Core Ultra 9 275HX integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	no data	3840x2400 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Xeon w5-2455X and Core Ultra 9 275HX integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Xeon w5-2455X and Core Ultra 9 275HX.

PCIe version	5.0	5.0 and 4.0
PCI Express lanes	64	24

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.

---

Pros & cons summary

---

Performance score	23.58	38.08
Recency	15 February 2023	1 January 2025
Physical cores	12	24
Power consumption (TDP)	200 Watt	55 Watt

Vote for your favorite

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

---