EPYC 7742 vs EPYC 7662
EPYC 7742
EPYC 7662
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar EPYC 7742
Performance Per Dollar EPYC 7662
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7742 | EPYC 7662 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($800) | ⚠️ Higher cost ($1,266) |
| Longevity | ✨ Modern (Zen 2 (2017−2020) / 7 nm, 14 nm) | ✨ Modern (Zen 2 (2017−2020) / 7 nm, 14 nm) |
💎 Value Proposition
| Insight | EPYC 7742 | EPYC 7662 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+52%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($800) | ⚠️ Higher cost ($1,266) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of EPYC 7742 and EPYC 7662
EPYC 7742
The EPYC 7742 is manufactured by AMD. It was released in 7 August 2019 (6 years ago). It is based on the Zen 2 (2017−2020) architecture. It features 64 cores and 128 threads. Base frequency is 2.25 GHz, with boost up to 3.4 GHz. L3 cache: 256 MB (total). L2 cache: 512K (per core). Built on 7 nm, 14 nm process technology. Socket: TR4. Thermal design power (TDP): 225 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 69,448 points. Launch price was $6,950.
EPYC 7662
The EPYC 7662 is manufactured by AMD. It was released in 2020-02-19. It is based on the Zen 2 (2017−2020) architecture. It features 64 cores and 128 threads. Base frequency is 2 GHz, with boost up to 3.3 GHz. L3 cache: 256 MB. L2 cache: 32 MB. Built on 7 nm, 14 nm process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4-3200. Passmark benchmark score: 72,298 points. Launch price was $6,700.
Processing Power
Both the EPYC 7742 and EPYC 7662 share an identical 64-core/128-thread configuration. Boost clocks reach 3.4 GHz on the EPYC 7742 versus 3.3 GHz on the EPYC 7662 — a 3% clock advantage for the EPYC 7742 (base: 2.25 GHz vs 2 GHz). Both are built on the Zen 2 (2017−2020) architecture using a 7 nm, 14 nm process. In PassMark, the EPYC 7742 scores 69,448 against the EPYC 7662's 72,298 — a 4% lead for the EPYC 7662. L3 cache: 256 MB (total) on the EPYC 7742 vs 256 MB on the EPYC 7662.
| Feature | EPYC 7742 | EPYC 7662 |
|---|---|---|
| Cores / Threads | 64 / 128 | 64 / 128 |
| Boost Clock | 3.4 GHz+3% | 3.3 GHz |
| Base Clock | 2.25 GHz+13% | 2 GHz |
| L3 Cache | 256 MB (total) | 256 MB |
| L2 Cache | 512K (per core) | 32 MB+6300% |
| Process | 7 nm, 14 nm | 7 nm, 14 nm |
| Architecture | Zen 2 (2017−2020) | Zen 2 (2017−2020) |
| PassMark | 69,448 | 72,298+4% |
Memory & Platform
The EPYC 7742 uses the TR4 socket (PCIe 4.0), while the EPYC 7662 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 3200 memory speed. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7742) and SP3 (EPYC 7662).
| Feature | EPYC 7742 | EPYC 7662 |
|---|---|---|
| Socket | TR4 | SP3 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | 3200 |
| Max RAM Capacity | 4096 | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Direct competitor: EPYC 7742 rivals Xeon Platinum 8280; EPYC 7662 rivals Xeon Platinum 8280.
| Feature | EPYC 7742 | EPYC 7662 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The EPYC 7742 launched at $6950 MSRP, while the EPYC 7662 debuted at $6150. At current prices ($800 vs $1266), the EPYC 7742 is $466 cheaper. In terms of value (PassMark points per dollar), the EPYC 7742 delivers 86.8 pts/$ vs 57.1 pts/$ for the EPYC 7662 — making the EPYC 7742 the 41.3% better value option.
| Feature | EPYC 7742 | EPYC 7662 |
|---|---|---|
| MSRP | $6950 | $6150-12% |
| Avg Price (30d) | $800-37% | $1266 |
| Performance per Dollar | 86.8+52% | 57.1 |
| Release Date | 2019 | 2020 |
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