Ultra 9 285K vs Xeon D-1577

Primary details

Comparing Xeon D-1577 and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	988	54
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.90	74.27
Market segment	Server	Desktop processor
Series	Intel Xeon D	no data
Power efficiency	15.41	32.56
Architecture codename	Broadwell (2015−2019)	Arrow Lake-S (2024−2025)
Release date	24 February 2016 (8 years ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$1,176	$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 9 285K has 3809% better value for money than Xeon D-1577.

Detailed specifications

Xeon D-1577 and Core Ultra 9 285K 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	16 (Hexadeca-Core)	24 (Tetracosa-Core)
Threads	32	24
Base clock speed	1.3 GHz	3.7 GHz
Boost clock speed	2.1 GHz	5.6 GHz
Bus type	DMI 2.0	no data
Bus rate	no data	250 MHz
Multiplier	13	no data
L1 cache	64K (per core)	112 KB (per core)
L2 cache	256K (per core)	3 MB (per core)
L3 cache	1.5 MB (per core)	36 MB (shared)
Chip lithography	14 nm	3 nm
Die size	306.18 mm2	243 mm2
Maximum case temperature (TCase)	80 °C	no data
Number of transistors	3,200 million	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon D-1577 and Core Ultra 9 285K 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)	1
Socket	FCBGA1667	FCLGA1851
Power consumption (TDP)	45 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-1577 and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon D-1577 and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-1577 and Core Ultra 9 285K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon D-1577 and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR3	DDR5-6400
Maximum memory size	128 GB	192 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	no data
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® Graphics
Quick Sync Video	-	+
Graphics max frequency	no data	2 GHz

Graphics interfaces

Available interfaces and connections of Xeon D-1577 and Core Ultra 9 285K integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon D-1577 and Core Ultra 9 285K 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	4K @ 60Hz
Max resolution over DisplayPort	no data	8K @ 60Hz

Graphics API support

APIs supported by Xeon D-1577 and Core Ultra 9 285K 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 D-1577 and Core Ultra 9 285K.

PCIe version	2.0/3.0	5.0 and 4.0
PCI Express lanes	24	20
USB revision	2.0/3.0	no data
Total number of SATA ports	6	no data
Number of USB ports	8	no data
Integrated LAN	+	no data
UART	+	no data

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.

---

Pros & cons summary

---

Performance score	7.33	43.04
Recency	24 February 2016	24 October 2024
Physical cores	16	24
Threads	32	24
Chip lithography	14 nm	3 nm
Power consumption (TDP)	45 Watt	125 Watt

---

Should you still have questions on choice between Xeon D-1577 and Core Ultra 9 285K, 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.

---