AMD EPYC 7773X
- Brand:
- AMD
- Form Factor:
- Server & Enthusiast
- CPU Socket:
- SP3
- Core/Thread Count:
- 64C/128T
- TDP:
- 280W
- CPU Series:
- EPYC 7003 Series
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Manufacturer: AMD Last updated: October 9, 2026
AMD EPYC 7773X Review
AMD EPYC 7773X server processor, 64C/128T 2.2 GHz base clock, boosting up to 3.5 ghz, 280W TDP, SP3 platform.
The AMD EPYC 7773X is an AMD EPYC server processor in the EPYC 7003 Series lineup, offering 64C/128T running at 2.2 GHz base clock, boosting up to 3.5 ghz with 768 MB of L3 cache, within a 280W power envelope on AMD's SP3 platform in 1P / 2P configurations.
Performance and Architecture
With 64C/128T, the AMD EPYC 7773X runs at 2.2 GHz base clock, boosting up to 3.5 ghz. It carries 768 MB of L3 cache to keep large working sets close to the cores. As part of AMD's EPYC server lineup, it targets dense multi-socket compute, virtualization, and datacenter workloads.
Platform and Memory
The AMD EPYC 7773X is built for AMD's SP3 platform, supporting 1P / 2P socket configurations. It supports DDR4 memory across 8 channels (Up to 3200 MT/s). I/O runs over PCIe 4.0 x128.
Comparison to Alternatives
Within the EPYC 7003 Series lineup in this catalog, the AMD EPYC 7773X is positioned by its core count, clock speed, and TDP relative to other EPYC parts in the same generation. Buyers should weigh core density against per-core clock speed depending on whether the target workload favors many parallel threads or fewer, faster ones.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Datacenter and cloud compute
- Virtualization-dense server workloads
- Multi-socket enterprise deployments
Not for
- Consumer desktop builds
- Single-threaded latency-sensitive workloads on lower core-count SKUs
- Budget-constrained small business servers
Specifications
What these specs meanIdentity
| Release Year | 2021 |
|---|
Cores and threads
| Core Count | 64 cores |
|---|---|
| Thread Count | 128 threads |
Clocks
| Base Clock | 2.2 GHz |
|---|---|
| Boost Clock | Up to 3.5 GHz |
Cache
| L3 Cache | 768 MB |
|---|
Platform
| Socket | SP3 |
|---|---|
| Multi-Socket Support | 1P / 2P |
Memory
| Memory Channels | 8 channels |
|---|---|
| Max Memory Speed | 3200 MT/s |
| Memory Bandwidth | 204.8 GB/s |
PCIe and IO
| PCIe Lanes | 128 lanes |
|---|---|
| PCIe Generation | PCIe 4.0 |
Power and thermals
| TDP | 280 W |
|---|---|
| Configurable TDP Max | 225-280W |
Measured results
SPEC CPU 2017
Best published result on spec.org as of 23 Sept 2026.
| SPECrate® 2017 Integer (base) | 440 |
Cores 64 · Tested in ASUS RS520A-E11(KMPA-U16) Server System 2.20 GHz, AMD EPYC 7773X · Published by ASUSTeK Computer Inc., Mar-2022
Full disclosure on spec.org| SPECrate® 2017 Floating Point (base) | 374 |
Cores 64 · Tested in ASUS RS520A-E11(KMPA-U16) Server System 2.20 GHz, AMD EPYC 7773X · Published by ASUSTeK Computer Inc., Mar-2022
Full disclosure on spec.org| SPECrate® 2017 Integer (base) | 864 |
Cores 128 · Tested in ASUS RS720A-E11(KMPP-D32) Server System 2.20 GHz, AMD EPYC 7773X · Published by ASUSTeK Computer Inc., Mar-2022
Full disclosure on spec.org| SPECrate® 2017 Floating Point (base) | 745 |
Cores 128 · Tested in ASUS RS720A-E11(KMPP-D32) Server System 2.20 GHz, AMD EPYC 7773X · Published by ASUSTeK Computer Inc., Mar-2022
Full disclosure on spec.orgSPEC®, SPECrate® and SPECspeed® are registered trademarks of the Standard Performance Evaluation Corporation. Copied by permission of the Standard Performance Evaluation Corporation (SPEC). Results retrieved from www.spec.org on 23 Sept 2026.
FAQs
What are the key specifications of the AMD EPYC 7773X?
The AMD EPYC 7773X has 64 cores and 128 threads, a 2.2 GHz base and 3.5 GHz boost clock, 768 MB of L3 cache and a 280 W TDP.
Who is the AMD EPYC 7773X best suited to?
Best suited to: Datacenter and cloud compute; Virtualization-dense server workloads; Multi-socket enterprise deployments.
What are the drawbacks of the AMD EPYC 7773X?
Not the best fit for: Consumer desktop builds; Single-threaded latency-sensitive workloads on lower core-count SKUs; Budget-constrained small business servers.