EPYC 9845 vs EPYC 9745

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Primary details

Comparing EPYC 9745 and EPYC 9845 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentServerServer
Architecture codenameTurin (2024)Turin (2024)
Release date10 October 2024 (recently)10 October 2024 (recently)
Launch price (MSRP)$12,141$13,564

Detailed specifications

EPYC 9745 and EPYC 9845 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 cores128160
Threads256320
Base clock speed2.4 GHz2.1 GHz
Boost clock speed3.7 GHz3.7 GHz
L1 cache80 KB (per core)80 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache256 MB (shared)320 MB (shared)
Chip lithography3 nm3 nm
64 bit support++

Compatibility

Information on EPYC 9745 and EPYC 9845 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 configuration22
SocketSP5SP5
Power consumption (TDP)400 Watt390 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 9745 and EPYC 9845. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 9745 and EPYC 9845 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 9745 and EPYC 9845. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AN/A

Peripherals

Specifications and connection of peripherals supported by EPYC 9745 and EPYC 9845.

PCIe version5.05.0
PCI Express lanes128128

Pros & cons summary


Physical cores 128 160
Threads 256 320
Power consumption (TDP) 400 Watt 390 Watt

EPYC 9845 has 25% more physical cores and 25% more threads, and 2.6% lower power consumption.

We couldn't decide between EPYC 9745 and EPYC 9845. We've got no test results to judge.


Should you still have questions on choice between EPYC 9745 and EPYC 9845, ask them in Comments section, and we shall answer.

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AMD EPYC 9745
EPYC 9745
AMD EPYC 9845
EPYC 9845

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