EPYC 9455 vs Athlon 64 X2 6400+ BE

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Primary details

Comparing Athlon 64 X2 6400+ BE and EPYC 9455 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 segmentDesktop processorServer
Architecture codenameWindsor (2006−2007)Turin (2024)
Release dateAugust 2007 (17 years ago)10 October 2024 (less than a year ago)
Launch price (MSRP)no data$5,412

Detailed specifications

Athlon 64 X2 6400+ BE and EPYC 9455 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 cores2 (Dual-core)48 (Octatetraconta-Core)
Threads296
Base clock speedno data3.15 GHz
Boost clock speed3.2 GHz4.4 GHz
L1 cache256 KB80 KB (per core)
L2 cache1 MB1 MB (per core)
L3 cache0 KB192 MB (shared)
Chip lithography90 nm4 nm
Die size230 mm26x 70.6 mm2
Number of transistors227 million49,890 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Athlon 64 X2 6400+ BE and EPYC 9455 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 configuration12
SocketAM2SP5
Power consumption (TDP)125 Watt300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 64 X2 6400+ BE and EPYC 9455. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 X2 6400+ BE and EPYC 9455 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 X2 6400+ BE and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Athlon 64 X2 6400+ BE and EPYC 9455.

PCIe versionno data5.0
PCI Express lanesno data128

Pros & cons summary


Physical cores 2 48
Threads 2 96
Chip lithography 90 nm 4 nm
Power consumption (TDP) 125 Watt 300 Watt

Athlon 64 X2 6400+ BE has 140% lower power consumption.

EPYC 9455, on the other hand, has 2300% more physical cores and 4700% more threads, and a 2150% more advanced lithography process.

We couldn't decide between Athlon 64 X2 6400+ BE and EPYC 9455. We've got no test results to judge.

Note that Athlon 64 X2 6400+ BE is a desktop processor while EPYC 9455 is a server/workstation one.


Should you still have questions on choice between Athlon 64 X2 6400+ BE and EPYC 9455, ask them in Comments section, and we shall answer.

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AMD Athlon 64 X2 6400+ BE
Athlon 64 X2 6400+ BE
AMD EPYC 9455
EPYC 9455

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