AMD EPYC 7573X vs AMD Ryzen 3 8440U Comparison

The AMD EPYC 7573X and the AMD Ryzen 3 8440U occupy opposite ends of the processor spectrum, yet both are active production parts in the database. The EPYC 7573X is a server/workstation-class chip built for massive parallel workloads, while the Ryzen 3 8440U is a mobile processor designed for efficiency and integrated graphics. The recorded benchmark data reveals a complete sweep for the EPYC part, but the nature of the wins and the architectural context provide a nuanced picture for different use cases.

Head-to-Head Benchmarks

The head-to-head Cinebench results are unambiguous. Across all six recorded tests, the AMD EPYC 7573X secures the win, with a consistent dominance of over 442% in every single metric. In Cinebench R23 multi-core, the EPYC scores 59017 against the Ryzen 3 8440U’s 10884, a delta of 442.2%. The single-core R23 test shows a similar gap: 8331 versus 1536, a 442.4% advantage. This pattern repeats in R20 multi-core (24787 vs 4571, 442.3%) and R20 single-core (3499 vs 645, 442.5%).

The older R15 tests tell the same story. In R15 multi-core, the EPYC posts 5948 against 1097, a 442.2% lead. The R15 single-core result is 839 versus 154, a 444.8% delta, the largest relative margin in the entire comparison. Even where the Ryzen 3’s architecture is typically strong, single-threaded performance, the EPYC 7573X still more than quintuples the mobile chip’s output. This is not a close contest; the data shows a decisive, order-of-magnitude-class difference in raw compute capability.

However, a look at the broader database context tempers the narrative. The EPYC 7573X sits at the 71st percentile among all CPUs, while the Ryzen 3 8440U is at the 70th percentile. Their average benchmark scores are 17070 and 16663 respectively, a gap of less than 2.5%. The EPYC’s nearest rivals include the Intel Core i5-11400 (avg score 17067, delta 0%) and the AMD EPYC 7H12 (avg score 17120, delta -0.3%), indicating that its average performance across a wide benchmark suite is comparable to mainstream desktop and older server parts. The Ryzen 3 8440U’s nearest rivals are mobile and low-power parts like the Intel Core Ultra 5 115U (avg score 16753, delta -0.5%) and the AMD Ryzen 3 7335U (avg score 16827, delta -1%). These percentile and rival figures show that while the EPYC crushes the Ryzen 3 in Cinebench, the average performance landscape is far more crowded, with the mobile chip holding its own in other types of workloads.

Architecture Differences

The fundamental architectural split explains the benchmark chasm. The EPYC 7573X is a 32-core, 64-thread processor built on the Zen 3 architecture with the Milan-X codename, fabricated on TSMC’s 7 nm process. It uses 33,200 million transistors across 8 dies, each with an 81 mm² size, totaling a massive silicon footprint. Its cache hierarchy is enormous: 64 KB of L1 per core, 512 KB of L2 per core, and a staggering 768 MB of shared L3 cache. This cache capacity is a defining feature, designed to feed the 32 cores in server workloads that demand high data locality.

In contrast, the Ryzen 3 8440U is a 4-core, 8-thread part using the newer Zen 4 architecture under the Hawk Point codename, fabricated on TSMC’s 4 nm process. It integrates 20,900 million transistors on a single 137 mm² die. Its cache is far smaller: 64 KB of L1 per core, 1 MB of L2 per core, and 8 MB of shared L3. The process node advantage for the Ryzen 3 is clear, but the core count disparity is the primary driver of the multi-core performance gap.

Memory and I/O further separate the two. The EPYC 7573X supports DDR4 memory with an eight-channel bus, delivering a memory bandwidth of 204.8 GB/s, and it supports ECC memory. It connects via PCIe Gen 4 with 128 CPU-only lanes, designed for expansive server infrastructure. The Ryzen 3 8440U uses DDR5 memory on a dual-channel bus, offering 89.6 GB/s of bandwidth, and does not support ECC. Its PCIe implementation is Gen 4 with 14 CPU-only lanes, typical for a thin-and-light laptop. The EPYC also lacks integrated graphics, while the Ryzen 3 includes the Radeon 740M, a key feature for a mobile part with no discrete GPU.

Socket and power envelopes diverge as well. The EPYC uses AMD Socket SP3 and has a 280 W TDP, reflecting its server-class power draw. The Ryzen 3 uses AMD Socket FP7 and has a 28 W TDP, a tenfold difference that underscores its efficiency-focused mobile design. The EPYC’s base clock is 2.80 GHz with a boost of 3.60 GHz, while the Ryzen 3 runs at 3.00 GHz base and boosts to 4.70 GHz. The higher boost clock on the Ryzen 3 hints at single-thread capability, yet the benchmark data shows the EPYC still wins there by a wide margin, likely due to the massive L3 cache and higher sustained power limits.

Where Each One Wins

The EPYC 7573X wins in every recorded Cinebench test, making it the clear choice for any workload that relies on multi-threaded rendering, simulation, or compilation. Its 32 cores and 64 threads, paired with 768 MB of L3 cache, are built for throughput. The data shows a 442.2% lead in R23 multi-core, meaning tasks like video rendering or scientific computing would finish in a fraction of the time on the EPYC. The single-core wins are also notable; despite the Ryzen 3’s higher boost clock, the EPYC’s score of 8331 in R23 single-core versus 1536 indicates that even lightly threaded applications benefit from the server chip’s architecture, possibly due to the cache and memory subsystem.

The Ryzen 3 8440U, despite losing all head-to-head tests, has strengths that the Cinebench suite does not capture. Its integrated Radeon 740M graphics provide a complete system solution for mobile devices, eliminating the need for a discrete GPU in basic workloads. Its 28 W TDP and 4 nm process make it suitable for battery-powered laptops where sustained performance and power efficiency are critical. The database shows its Passmark scores, which include data compression (146273), data encryption (8012), and floating point math (23017), indicating capability in everyday tasks and light productivity. Its single-thread Passmark score is 3648, and its multithread score is 12805, figures that are competitive within its mobile class, as its nearest rivals are all low-power parts with similar average scores.

The EPYC’s server-oriented features, such as eight-channel DDR4 memory, 128 PCIe lanes, and ECC support, make it the winner for infrastructure roles like database hosting, virtualization, and high-performance computing. The Ryzen 3 wins in the mobile segment, where its small die, integrated graphics, and low power draw are advantages that no benchmark comparing raw compute can fully quantify. The data does not show the Ryzen 3 winning any test, but its design goals are orthogonal: efficiency and integration versus raw core count.

FAQ

Q: Which processor has more cores?

A: The AMD EPYC 7573X has 32 cores and 64 threads, while the AMD Ryzen 3 8440U has 4 cores and 8 threads.

Q: What is the biggest performance difference in the head-to-head tests?

A: The largest delta is in Cinebench R15 single-core, where the EPYC 7573X leads by 444.8% (839 vs 154). The smallest delta is 442.2% in several tests, including R23 multi-core and R20 multi-core.

Q: How do their average benchmark scores compare?

A: The EPYC 7573X has an average benchmark score of 17070, while the Ryzen 3 8440U has an average score of 16663, a difference of roughly 2.4%.

Q: What are the memory specifications for each?

A: The EPYC 7573X supports DDR4 memory on an eight-channel bus with 204.8 GB/s bandwidth and ECC support. The Ryzen 3 8440U supports DDR5 on a dual-channel bus with 89.6 GB/s bandwidth and no ECC support.

Q: Does either processor include integrated graphics?

A: The EPYC 7573X has no integrated graphics. The Ryzen 3 8440U includes the Radeon 740M integrated GPU.

Q: What are the TDP values for these parts?

A: The EPYC 7573X has a TDP of 280 W, while the Ryzen 3 8440U has a TDP of 28 W.

The Verdict

The data clearly directs the AMD EPYC 7573X toward server and workstation buyers. It wins all six head-to-head Cinebench tests with over 442% margins, has 32 cores, 64 threads, and 768 MB of L3 cache, and provides eight-channel memory and 128 PCIe lanes. For any workload that scales with core count or demands massive cache capacity, this processor is the unambiguous choice. Its 71st percentile ranking and average score of 17070 place it in the company of capable desktop parts, but it is the multi-core dominance that defines its role.

The AMD Ryzen 3 8440U, despite losing every head-to-head test, is the appropriate pick for mobile computing. Its 28 W TDP, 4 nm process, and integrated Radeon 740M graphics make it a complete package for laptops where power draw and physical footprint matter more than peak compute. Its 70th percentile ranking and average score of 16663 show it is not a weak performer in its class; it sits alongside other mobile and low-power parts like the Intel Core Ultra 5 115U and AMD Ryzen 3 7335U. The benchmark database does not list a win for the Ryzen 3, but its specifications target a different market segment entirely.

The verdict is straightforward: choose the EPYC 7573X for maximum compute density, cache capacity, and memory bandwidth in a server environment. Choose the Ryzen 3 8440U for an efficient, integrated mobile platform. The head-to-head results are a reflection of their divergent design philosophies, not a measure of overall quality. Each wins in the context it was built for.