AMD EPYC 7313 vs AMD Ryzen AI Max 390 Comparison

The AMD EPYC 7313 and AMD Ryzen AI Max 390 represent two fundamentally different approaches to AMD processor design, yet their aggregate benchmark scores place them nearly neck-and-neck. The EPYC 7313, a server workhorse built on Zen 3, posts an average benchmark score of 57,399, while the mobile-focused Ryzen AI Max 390, based on Zen 5, trails by a razor-thin 0.5% with a score of 57,103. Both processors sit in the 94th percentile of all CPUs tracked, indicating that despite their divergent architectures, sockets, and power envelopes, they deliver comparable overall performance. The data tells a story of specialization: the Ryzen AI Max 390 wins 13 of 17 head-to-head benchmark comparisons, while the EPYC 7313 takes 4 decisive victories in specific server-oriented workloads.

Where Each One Wins

The Ryzen AI Max 390 is the clear winner in single-threaded performance and general compute throughput. Its lead in Cinebench tests is consistent across every version, with a 9% advantage in R15 single-core and an 8.9% edge in R20, R23, and the multi-core variants of all three. This consistency suggests a broad architectural superiority in per-core execution, driven by its Zen 5 design and higher boost clock of 5.00 GHz compared to the EPYC’s 3.70 GHz. The Ryzen chip also dominates floating-point math, scoring 93,598 versus 78,748, a 15.9% margin, and extended instructions, where it leads by 14.8% with 39,250 points. In PassMark’s single-thread test, the gap widens dramatically to 40.3%, with scores of 4,025 versus 2,402, making it the largest single victory in the entire comparison.

The EPYC 7313, however, claims victory where its 16 cores, 32 threads, and massive 128 MB of shared L3 cache matter most. Data encryption is its strongest suit, delivering 31,881 points against 25,692, a 24.1% advantage. Physics simulation shows a staggering 41.6% lead, scoring 3,899 versus 2,754, likely reflecting the server chip’s ability to sustain heavy parallel workloads over extended periods. Data compression also favors the EPYC, with a 6.5% edge (525,507 versus 493,517), and random string sorting goes its way by 7.5% (57,910 versus 53,851). These wins point to memory bandwidth and cache capacity being more critical than raw clock speed for certain data-heavy tasks.

FAQ

Q: Which processor has the higher single-core performance?

A: The AMD Ryzen AI Max 390 wins every single-core benchmark. In Cinebench R23, it scores 5,091 versus 4,637 for the EPYC 7313, an 8.9% difference. The PassMark single-thread test shows an even larger 40.3% gap, with 4,025 points against 2,402.

Q: How do the two compare in multi-core workloads?

A: The Ryzen AI Max 390 leads all multi-core Cinebench tests by 8.9%, including a 36,064 versus 32,847 score in R23. However, the EPYC 7313 wins PassMark physics by 41.6% and data encryption by 24.1%, indicating it excels in specific server-oriented parallel tasks.

Q: Which CPU has more cores and threads?

A: The EPYC 7313 has 16 cores and 32 threads, while the Ryzen AI Max 390 has 12 cores and 24 threads. Despite having fewer cores, the Ryzen chip still wins most multi-threaded benchmarks due to its newer architecture.

Q: What are the memory bandwidth specifications?

A: The EPYC 7313 supports eight-channel DDR4 with a bandwidth of 204.8 GB/s. The Ryzen AI Max 390 uses quad-channel LPDDR5X and achieves a higher bandwidth of 256.0 GB/s, despite having half the memory channels.

Q: How do their process nodes differ?

A: The EPYC 7313 is built on TSMC’s 7 nm process, while the Ryzen AI Max 390 uses a newer 4 nm process from the same foundry. This contributes to the Ryzen chip’s lower TDP of 55 watts versus 155 watts for the EPYC.

Q: Which CPU includes integrated graphics?

A: Only the Ryzen AI Max 390 features integrated graphics, specifically a Radeon 8050S. The EPYC 7313 has no integrated graphics, which is typical for server processors that rely on dedicated GPUs.

Head-to-Head Benchmarks

The most striking result in this comparison is the PassMark single-thread test, where the Ryzen AI Max 390 crushes the EPYC 7313 by 40.3% — a score of 4,025 versus 2,402. This massive gap reflects the generational leap from Zen 3 to Zen 5 and the mobile chip’s 5.00 GHz boost clock, which allows it to execute single-threaded tasks with far greater efficiency. No other benchmark in this dataset approaches this margin, making it the defining advantage of the Ryzen chip.

In Cinebench testing, the Ryzen AI Max 390 maintains a uniform 8.9% lead across all versions and core counts. The R15 multi-core test shows 3,635 versus 3,310, R20 multi-core shows 15,146 versus 13,795, and R23 multi-core shows 36,064 versus 32,847. The single-core variants follow the same pattern, with R23 single-core at 5,091 versus 4,637. This consistency across rendering workloads suggests that the Ryzen chip’s architectural efficiency offsets its 25% core deficit in threaded tasks.

The EPYC 7313’s biggest win comes in PassMark physics, where it scores 3,899 against 2,754, a 41.6% advantage. This result is counterintuitive given the Ryzen chip’s multi-core wins elsewhere, but it highlights the EPYC’s strength in sustained, cache-heavy computations. Data encryption is another major EPYC victory, with 31,881 points versus 25,692, a 24.1% margin that likely benefits from the 128 MB L3 cache. In data compression, the EPYC leads by 6.5% (525,507 versus 493,517), and in random string sorting by 7.5% (57,910 versus 53,851), reinforcing its server-oriented profile.

Specification Differences

The two processors diverge sharply on almost every physical specification. The EPYC 7313 packs 16 cores and 32 threads, while the Ryzen AI Max 390 has 12 cores and 24 threads. Clock speeds favor the mobile chip, with a base clock of 3.20 GHz and boost of 5.00 GHz, compared to the EPYC’s 3.00 GHz base and 3.70 GHz boost. Power consumption tells a different story entirely: the EPYC draws 155 watts TDP, nearly three times the Ryzen’s 55 watts. The EPYC uses AMD Socket SP3, while the Ryzen fits into AMD Socket FP11, reflecting their server and mobile market positions respectively.

Memory configurations are equally distinct. The EPYC supports DDR4 with an eight-channel bus and 204.8 GB/s bandwidth, whereas the Ryzen uses LPDDR5X on a quad-channel bus, yet achieves a higher 256.0 GB/s bandwidth. PCIe connectivity also differs drastically: the EPYC provides 128 Gen 4 lanes from the CPU, while the Ryzen offers just 16 Gen 4 lanes. The EPYC has no integrated graphics, but the Ryzen includes a Radeon 8050S. Finally, the EPYC launched with a price of $1083 as its launch MSRP, while no comparable figure exists for the Ryzen.

Architecture Differences

The architectural gap between these CPUs is generational. The EPYC 7313 is built on Zen 3 under the Milan codename, using a 7 nm process from TSMC with a die size of 4x 81 mm² and 16,600 million transistors. The Ryzen AI Max 390 employs the newer Zen 5 architecture with the Strix Halo codename, fabricated on a 4 nm TSMC node with a die size of 2x 70.6 mm². This process shrink enables the Ryzen chip to achieve higher clock speeds while consuming far less power, a critical advantage for mobile deployment.

Cache hierarchies differ in both size and organization. The EPYC offers 64 KB of L1 cache per core and 512 KB of L2 per core, while the Ryzen provides 80 KB of L1 and 1 MB of L2 per core. The L3 cache presents the most significant divergence: the EPYC has 128 MB shared, while the Ryzen has only 64 MB shared. This halving of L3 capacity is a key reason the EPYC wins encryption and physics tests, where large working sets benefit from the additional cache. The Ryzen compensates with faster memory bandwidth from its LPDDR5X support, which helps explain its wins in floating-point and integer math despite the smaller cache.