Ultra 9 285 vs EPYC 7643

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Primary details

Comparing EPYC 7643 and Core Ultra 9 285 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking38not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation6.71no data
Market segmentServerDesktop processor
SeriesAMD EPYCno data
Power efficiency20.14no data
Architecture codenameMilan (2021−2023)Arrow Lake-S (2024−2025)
Release date12 January 2021 (3 years ago)January 2025
Launch price (MSRP)$4,995no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

EPYC 7643 and Core Ultra 9 285 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 cores48 (Octatetraconta-Core)24 (Tetracosa-Core)
Threads9624
Base clock speed2.3 GHz2.5 GHz
Boost clock speed3.6 GHz5.6 GHz
Multiplier23no data
L1 cache3 MB112 KB (per core)
L2 cache24 MB3 MB (per core)
L3 cache256 MB (shared)36 MB (shared)
Chip lithography7 nm+3 nm
Die size8x 81 mm2243 mm2
Number of transistors33,200 million17,800 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on EPYC 7643 and Core Ultra 9 285 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 configuration21
SocketSP31851
Power consumption (TDP)225 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7643 and Core Ultra 9 285. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)no data+
TSX-+

Security technologies

EPYC 7643 and Core Ultra 9 285 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7643 and Core Ultra 9 285 are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7643 and Core Ultra 9 285. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5 Depends on motherboard
Maximum memory size4 TiBno data
Maximum memory bandwidth204.795 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AArc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by EPYC 7643 and Core Ultra 9 285.

PCIe version4.05.0
PCI Express lanes12820

Pros & cons summary


Physical cores 48 24
Threads 96 24
Chip lithography 7 nm 3 nm
Power consumption (TDP) 225 Watt 125 Watt

EPYC 7643 has 100% more physical cores and 300% more threads.

Ultra 9 285, on the other hand, has a 133.3% more advanced lithography process, and 80% lower power consumption.

We couldn't decide between EPYC 7643 and Core Ultra 9 285. We've got no test results to judge.

Be aware that EPYC 7643 is a server/workstation processor while Core Ultra 9 285 is a desktop one.


Should you still have questions on choice between EPYC 7643 and Core Ultra 9 285, ask them in Comments section, and we shall answer.

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AMD EPYC 7643
EPYC 7643
Intel Core Ultra 9 285
Core Ultra 9 285

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


1.2 232 votes

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2.4 74 votes

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Questions & comments

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