EPYC 7742: specs and benchmarks

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Aggregate performance score

EPYC 7742 provides outstanding benchmark performance at 45.62% of a leader's which is a 96-core Ryzen Threadripper PRO 7995WX.

Summary

AMD started EPYC 7742 sales 7 August 2019 at a recommended price of $6,950. This is a Zen 2 architecture desktop processor primarily aimed at professional systems. It has 64 cores and 128 threads, and is based on 7 nm, 14 nm manufacturing technology, with a max turbo frequency of 3400 MHz and an unlocked multiplier.

Compatibility-wise, this is AMD Socket TR4 processor with a TDP of 225 Watt. It supports DDR4 Eight-channel memory.

Primary details

EPYC 7742 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking45
Place by popularitynot in top-100
Cost-effectiveness evaluation3.47
Market segmentServer
SeriesAMD EPYC
Power efficiency18.45of 100.00 (Core Ultra 7 164U)
Architecture codenameZen 2 (2017−2020)
Release date7 August 2019 (5 years ago)
Launch price (MSRP)$6,950of 17,906 (tray) (Xeon Platinum 8280L)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores64 (Tetrahexaconta-Core)
Threads128
Base clock speed2.25 GHzof 4.7 GHz (Ryzen 9 7900X)
Boost clock speed3.4 GHzof 50 MHz (i486DX-50)
Multiplier22.5of 42 (Core i7-7700K)
L1 cache96K (per core)of 7475.2 KB (Apple M2 Pro 10-Core)
L2 cache512K (per core)of 86016 KB (EPYC 9634)
L3 cache256 MB (shared)of 1179648 KB (EPYC 9684X)
Chip lithography7 nm, 14 nmof 0.18 µm (K6-2E+/350AUZ)
Die size192 mm2
Number of transistors4,800 millionof 135,240 million (EPYC 9684X)
64 bit support+
Windows 11 compatibility+
Unlocked multiplier+

Compatibility

Information on EPYC 7742 compatibility with other computer components and devices: 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)of 8 (Xeon Platinum 8454H)
SocketTR4
Power consumption (TDP)225 Wattof 500 Watt (Xeon 6960P)

Technologies and extensions

Technological capabilities and additional instructions supported by EPYC 7742. You'll probably need this information if you require some particular technology.

AES-NI+
AVX+
Precision Boost 2+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V+

Memory specs

Types, maximum amount and channel number of RAM supported by EPYC 7742's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4 Eight-channel
Maximum memory size4 TiBof 6 TiB (EPYC 9654)
Max memory channels8of 12 (Xeon Platinum 9221)
Maximum memory bandwidth204.763 GB/sof 460.8 GB/s (EPYC 9654)
ECC memory support+

Benchmark performance

Single-core and multi-core benchmark results of EPYC 7742. Overall benchmark performance 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 7742 45.62

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 7742 69663

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 7742 1204

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 7742 11782

Gaming performance

Closest competitors

EPYC 7742's performance relative to its closest rivals among server CPUs.


Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for EPYC 7742, according to our PC configuration statistics.

These are the fastest graphics cards for EPYC 7742 in our user configuration statistics. There is a total of 26 configurations using EPYC 7742 in our database.

All comparisons with EPYC 7742

Community ratings

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4.3 128 votes

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