EPYC 7773X vs EPYC 7551

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Aggregate performance score

EPYC 7551
2017
32 cores / 64 threads, 180 Watt
16.34
EPYC 7773X
2022
64 cores / 128 threads, 280 Watt
57.60
+253%

EPYC 7773X outperforms EPYC 7551 by a whopping 253% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7551 and EPYC 7773X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking40921
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.27no data
Market segmentServerServer
SeriesAMD EPYCno data
Power efficiency8.5919.46
Architecture codenameNaples (2017−2018)Milan-X (2022)
Release date29 June 2017 (7 years ago)22 March 2022 (2 years ago)
Launch price (MSRP)$3,400no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

EPYC 7551 and EPYC 7773X 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 cores32 (Dotriaconta-Core)64 (Tetrahexaconta-Core)
Threads64128
Base clock speed2 GHz2.2 GHz
Boost clock speed3 GHz3.5 GHz
Multiplier20no data
L1 cache96K (per core)64K (per core)
L2 cache512K (per core)512K (per core)
L3 cache64 MB (shared)768 MB (shared)
Chip lithography14 nm7 nm
Die size192 mm28x 81 mm2
Number of transistors4,800 million33,200 million
64 bit support+-
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on EPYC 7551 and EPYC 7773X 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 configuration2 (Multiprocessor)2
SocketTR4SP3
Power consumption (TDP)180 Watt280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7551 and EPYC 7773X. 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 EPYC 7551 and EPYC 7773X are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7551 and EPYC 7773X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Eight-channelDDR4-3200
Maximum memory size2 TiBno data
Max memory channels8no data
Maximum memory bandwidth170.671 GB/sno data
ECC memory support+-

Peripherals

Specifications and connection of peripherals supported by EPYC 7551 and EPYC 7773X.

PCIe version3.04.0
PCI Express lanes128128

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.

EPYC 7551 16.34
EPYC 7773X 57.60
+253%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

EPYC 7551 25960
EPYC 7773X 91491
+252%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

EPYC 7551 897
EPYC 7773X 1531
+70.7%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

EPYC 7551 5764
EPYC 7773X 15277
+165%

Gaming performance

Pros & cons summary


Performance score 16.34 57.60
Recency 29 June 2017 22 March 2022
Physical cores 32 64
Threads 64 128
Chip lithography 14 nm 7 nm
Power consumption (TDP) 180 Watt 280 Watt

EPYC 7551 has 55.6% lower power consumption.

EPYC 7773X, on the other hand, has a 252.5% higher aggregate performance score, an age advantage of 4 years, 100% more physical cores and 100% more threads, and a 100% more advanced lithography process.

The EPYC 7773X is our recommended choice as it beats the EPYC 7551 in performance tests.


Should you still have questions on choice between EPYC 7551 and EPYC 7773X, ask them in Comments section, and we shall answer.

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AMD EPYC 7551
EPYC 7551
AMD EPYC 7773X
EPYC 7773X

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Community ratings

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


4.9 10 votes

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3.3 23 votes

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Questions & comments

Here you can ask a question about EPYC 7551 or EPYC 7773X, agree or disagree with our judgements, or report an error or mismatch.