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AMD launched the EPYC 7662 and EPYC 7532 on February 19, 2020, adding two unusual options to its second-generation EPYC 7002 “Rome” lineup. The 7662 delivered 64 cores at a 225 W TDP, while the 7532 paired 32 cores with an unusually large 256 MB L3 cache. The former targeted highly parallel workloads; the latter was aimed at applications that benefit from more cache per core.
What AMD launched
These processors were additions to the existing EPYC 7002 family, not a new architecture generation. Both use AMD’s SP3 platform and support one- or two-socket server configurations.
The EPYC 7662 occupied the high-core-count portion of the Rome stack. It offered 64 cores and 128 threads, but with a lower maximum boost specification than the flagship EPYC 7742. Its 225 W TDP gave it a higher power envelope than the 200 W EPYC 7702.
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#1 Best Overall
- The processor features Socket AM5 socket for installation on the PCB
- EPYC product line processor for better usability and increased efficiency
- Dodeca-core (12 Core) processor core allows multitasking with great reliability and fast processing speed
- 64 MB of L3 cache memory provides excellent hit rate in short access time enabling improved system performance
- Processor with 3.40 GHz clock speed for reliable and fast execution of instructions to ensure maximum convenience and feasibility
See AMD’s EPYC 7002 datasheet and the original ServeTheHome launch report for the launch-era context.
EPYC 7662 vs. EPYC 7532 specifications
| Specification | EPYC 7662 | EPYC 7532 |
|---|---|---|
| Family | EPYC 7002 “Rome” | EPYC 7002 “Rome” |
| Cores / threads | 64 / 128 | 32 / 64 |
| Base clock | 2.0 GHz | 2.4 GHz |
| Maximum boost | Up to 3.3 GHz | Up to 3.3 GHz |
| L3 cache | 256 MB | 256 MB |
| Default TDP | 225 W | 200 W |
| Memory | Eight-channel DDR4, up to 3200 MT/s | Eight-channel DDR4, up to 3200 MT/s |
| Theoretical memory bandwidth | 204.8 GB/s per socket | 204.8 GB/s per socket |
| PCIe | 128 PCIe 4.0 lanes | 128 PCIe 4.0 lanes |
| Socket support | 1P / 2P, SP3 | 1P / 2P, SP3 |
| AMD tray OPN | 100-000000137 | 100-000000136 |
“Up to” boost frequency is a maximum opportunistic frequency, not a promise of sustained all-core operation. Actual clocks depend on workload, cooling, firmware, power limits, and the server platform.
Why the EPYC 7662 mattered
The 7662 gave system builders another 64-core Rome option between the EPYC 7702 and 7742 in practical positioning:
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| Processor | Cores | TDP | Maximum listed boost | L3 cache |
|---|---|---|---|---|
| EPYC 7702 | 64 | 200 W | Up to 3.35 GHz | 256 MB |
| EPYC 7662 | 64 | 225 W | Up to 3.3 GHz | 256 MB |
| EPYC 7742 | 64 | 225 W | Up to 3.4 GHz | 256 MB |
| EPYC 7642 | 48 | 225 W | Up to 3.3 GHz | 256 MB |
The 7662 was not automatically “faster than” the 7702 or a cheaper 7742. Its value depended on the price available to the buyer, application scaling, cooling capacity, licensing, and real sustained workload behavior. A higher TDP can provide a different power and thermal operating envelope, but TDP alone is not a performance benchmark.
Rank #2
- Socket SP3 Enables PCB Placement Without Soldering
- Processor Equipped with Socket SP3 for PCB Installation
- EPYC Processor Ensures Reliability and Maximum Productivity
- 128 MB L3 Cache Boosts System Performance, Minimizes Interruptions
- 24-Core Processor Core Handles Data Efficiently for Quick Information Transfer
Why the EPYC 7532 was unusual
Many 32-core Rome processors offered less cache per core. The 7532’s 256 MB L3 cache gave each of its 32 cores an effective 8 MB cache allocation, compared with roughly 4 MB per core on many other 32-core models.
That extra capacity can help when an application repeatedly accesses a working set that fits more effectively in cache. Potentially relevant workloads include selected engineering and simulation codes, CAE, CFD, FEA, analytics, databases, and other memory-access-sensitive applications. AMD and ServeTheHome specifically associated the processor with cache-intensive workloads such as ANSYS CFX.
Cache capacity does not guarantee a speedup. Results depend on data locality, memory latency, thread synchronization, working-set size, software optimization, and whether the application is limited by compute, memory bandwidth, or I/O. A conventional 32-core workload may instead prefer the higher clocks of an adjacent part such as the EPYC 7542.
Platform capabilities
Both CPUs brought the broader Rome platform to the server:
Rank #3
- 128 PCIe 4.0 lanes per socket for storage, networking, accelerators, and other I/O.
- Eight DDR4 memory channels with support for speeds up to 3200 MT/s under the applicable population conditions.
- Up to 204.8 GB/s of theoretical memory bandwidth per socket.
- One- and two-socket operation.
- AMD Infinity Architecture and Infinity Guard security technologies.
A two-socket configuration does not automatically double application performance. NUMA placement, inter-socket traffic, memory locality, application scaling, and software licensing can all change the result.
SP3 compatibility requires validation
Although both processors use the SP3 socket, socket compatibility is not the same as universal drop-in compatibility. Before upgrading an existing server, check the exact motherboard or OEM system documentation for:
- BIOS or UEFI support and the minimum required firmware version.
- Board revision and processor support lists.
- VRM and socket power-delivery capability.
- Cooling capacity for a 200 W or 225 W CPU.
- Supported ECC memory type, speed, and population.
- Chassis airflow, redundant power-supply capacity, and accelerator configuration.
AMD’s product documentation notes that some second-generation EPYC features may require a server-manufacturer BIOS update. Confirm support with the system vendor rather than relying on the SP3 label alone.
Launch pricing and the later AMD price signal
ServeTheHome reported AMD’s standard 1,000-unit launch pricing as $6,150 for the EPYC 7662 and $3,350 for the EPYC 7532.
Rank #4
- 16 CPU cores
- Up to 3.3GHz max boost clock
- 1P/2P socket count
- 32 # of threads
- 128MB L3 cache
AMD’s product pages currently display a different 1Ku figure for the 7532: $2,380, while the 7662 page displays $6,150. These figures should not be treated as interchangeable or as single-unit retail prices. “1Ku” means pricing for an order quantity of 1,000 processors; it does not represent the cost of a complete server, a supported OEM configuration, or necessarily an individual processor on the secondary market.
Product identifiers can help when sourcing parts: the tray OPNs are 100-000000137 for the 7662 and 100-000000136 for the 7532. Boxed variants use the corresponding WOF suffix.
OEM systems and availability
At launch, ServeTheHome reported that Dell and Supermicro were expected to offer systems using the new CPUs, with HPE and Lenovo expected to follow. That announcement should not be read as proof that every manufacturer offered every processor in every chassis or supported it as an upgrade.
For production deployment, an OEM-validated server generally provides safer integration of BIOS, cooling, memory configurations, firmware, warranty, and support. Independent integrators or refurbished systems can offer more flexibility and lower acquisition cost, but the buyer must verify the complete hardware configuration.
Best Value
- Item Package Dimension: 15.78L x 11.81W x 7.84H inches
- Item Package Weight - 1.11 Pounds
- Item Package Quantity - 1
- Product Type - COMPUTER PROCESSOR
Which processor fits which workload?
Choose the EPYC 7662 when:
- The application scales strongly across many cores and threads.
- You need 64 cores but do not require the highest listed Rome boost specification.
- You need Rome’s large memory and PCIe 4.0 I/O capacity.
- The server’s cooling and power delivery are rated for a 225 W processor.
- Per-core software licensing makes a 64-core configuration economically viable.
Choose the EPYC 7532 when:
- Testing shows that the application benefits from a large last-level cache.
- The workload resembles selected engineering, simulation, analytics, database, or technical-computing workloads.
- A 32-core licensing boundary is preferable to 48 or 64 cores.
- You want Rome’s memory and I/O platform without moving to a 64-core CPU.
Consider an adjacent Rome SKU when:
- EPYC 7702: its lower 200 W TDP better matches the server’s power or cooling limits.
- EPYC 7742: the workload benefits from its higher listed 64-core boost specification and its price is justified.
- EPYC 7542: higher clocks matter more than the 7532’s extra cache.
- EPYC 7642: 48 cores provide a better compromise between parallelism, licensing, and cache.
Benchmark the intended application before choosing between these parts. Core count, cache, base clock, boost specification, and TDP describe the design; they do not replace workload testing.
Buying one in 2026
The EPYC 7662 and 7532 remain historically important examples of AMD filling out the Rome product stack, but they are 2020-era processors. A current procurement decision should compare the complete server—not only the CPU—with newer EPYC generations that may provide better performance per watt, newer memory technology, updated security capabilities, and a longer support horizon.
Rome can still make sense in a refurbished enterprise server, homelab, development cluster, or budget virtualization environment when high core density and DDR4 platform costs are attractive. It is a weaker choice when the workload requires current vendor warranty, predictable long-term supply, maximum efficiency, or current platform features.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Also include software licensing in the total-cost calculation. A 32-core 7532 may fit a licensing threshold better than a 48- or 64-core processor, but licensing rules vary by vendor, edition, geography, and contract date. Conversely, a seemingly inexpensive used server can become costly if it needs additional memory, storage, power, support, or proprietary firmware.
Bottom line
The EPYC 7662 was AMD’s 64-core, 225 W Rome option for heavily parallel server workloads. The EPYC 7532 was the specialist: a 32-core CPU with the same 256 MB L3 cache as AMD’s 64-core models, making it potentially valuable for cache-sensitive applications.
Neither processor is universally superior. Select the 7662 for scalable throughput, the 7532 when cache behavior and licensing favor it, and an adjacent or newer EPYC model when power efficiency, clocks, price, support, or platform longevity matter more. Validate the exact server and benchmark the real workload before deployment.
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