AMD EPYC 7473X vs AMD Ryzen 3 4300G Comparison

# AMD EPYC 7473X vs AMD Ryzen 3 4300G

The AMD EPYC 7473X and AMD Ryzen 3 4300G occupy opposite ends of AMD’s product spectrum, yet both carry the same 7 nm process node from TSMC. The EPYC 7473X is a 24-core, 48-thread server processor built on Zen 3 with Milan-X silicon, while the Ryzen 3 4300G is a 4-core, 8-thread desktop APU based on Zen 2 with Renoir architecture. Benchmark results show the EPYC winning all six head-to-head Cinebench tests, with margins consistently near 500%. However, the Ryzen 3 4300G matches the EPYC’s 69th percentile ranking among all CPUs, indicating that its average benchmark score of 14503 is nearly identical to the EPYC’s 14574. This pairing highlights how core count and cache scale alter workload characteristics far more than average composite scores suggest.

Where Each One Wins

The EPYC 7473X dominates every multi-threaded rendering workload in the data. In Cinebench R23 multi-core, it scores 50388 versus 8387 for the Ryzen 3 4300G, a 500.8% advantage. Similarly, Cinebench R20 multi-core shows 21162 against 3522, and Cinebench R15 multi-core shows 5078 against 845. These results reflect the EPYC’s sixfold core advantage and its massive 768 MB shared L3 cache. For server virtualization, database workloads, or any compute task that scales across many threads, the EPYC 7473X is the clear choice.

The Ryzen 3 4300G does not win a single Cinebench benchmark in the head-to-head data. Yet its 65 W TDP and integrated Radeon Vega 6 graphics make it a different kind of contender. The EPYC 7473X carries no integrated graphics and requires a discrete GPU, while the Ryzen 3 4300G can drive a display on its own. For compact desktop builds or office systems where rendering performance is secondary, the Ryzen 3’s lower power envelope and onboard graphics provide a functional advantage that benchmark scores do not capture. Its unlocked multiplier also permits overclocking, whereas the EPYC is locked.

Architecture Differences

The two processors diverge at nearly every architectural layer. The EPYC 7473X uses Zen 3 cores from the Milan-X generation, while the Ryzen 3 4300G uses Zen 2 cores from Renoir. Both are fabricated on TSMC’s 7 nm process, but the EPYC packs 33,200 million transistors across eight 81 mm² dies, totaling a 8x 81 mm² die configuration. The Ryzen 3 uses a single 156 mm² die with 9,800 million transistors.

Cache hierarchy differences are stark. The EPYC 7473X provides 64 KB L1 per core, 512 KB L2 per core, and 768 MB shared L3. The Ryzen 3 4300G offers the same per-core L1 and L2 sizes but only 4 MB shared L3. That 192x difference in L3 capacity is the defining architectural feature of the EPYC, enabling far larger working sets to stay on-die.

Memory support also separates them. The EPYC 7473X uses eight-channel DDR4 with 204.8 GB/s bandwidth, while the Ryzen 3 4300G uses dual-channel DDR4 at 51.2 GB/s. ECC memory is supported on the EPYC but not on the Ryzen 3. PCIe connectivity differs as well: the EPYC provides Gen 4 with 128 lanes (CPU only), while the Ryzen 3 provides Gen 3 with 16 lanes (CPU only). The EPYC targets Socket SP3, the Ryzen 3 uses Socket AM4.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7473X has 24 cores and 48 threads, while the AMD Ryzen 3 4300G has 4 cores and 8 threads.

Q: How do their average benchmark scores compare?

A: The EPYC 7473X has an average benchmark score of 14574, and the Ryzen 3 4300G scores 14503. The Ryzen 3 4300G’s nearest rival list includes the EPYC 7473X with a deltaPct of -0.5%, meaning the EPYC is 0.5% higher on average.

Q: Does the Ryzen 3 4300G support ECC memory?

A: No, the Ryzen 3 4300G does not support ECC memory. The EPYC 7473X does support ECC memory.

Q: What is the L3 cache size on each processor?

A: The EPYC 7473X has 768 MB of shared L3 cache, while the Ryzen 3 4300G has 4 MB of shared L3 cache.

Q: Which processor includes integrated graphics?

A: The Ryzen 3 4300G includes Radeon Vega 6 integrated graphics. The EPYC 7473X has no integrated graphics.

Q: What are the release dates for these processors?

A: The EPYC 7473X was released on 2022-03-21, and the Ryzen 3 4300G was released on 2020-07-20.

Specification Differences

The two processors differ in every major specification category. The EPYC 7473X operates at a base clock of 2.80 GHz and boost clock of 3.70 GHz, while the Ryzen 3 4300G runs at 3.80 GHz base and 4.00 GHz boost. Despite the Ryzen’s higher clocks, the EPYC’s additional cores drive its benchmark superiority.

Power consumption differs by 175 W: the EPYC 7473X has a TDP of 240 W, the Ryzen 3 4300G has 65 W. Socket compatibility separates them entirely, with the EPYC using AMD Socket SP3 and the Ryzen 3 using AMD Socket AM4. The EPYC’s memory bus is eight-channel versus dual-channel on the Ryzen 3, and memory bandwidth is 204.8 GB/s versus 51.2 GB/s. PCIe generation and lane count also differ: Gen 4 with 128 lanes on the EPYC, Gen 3 with 16 lanes on the Ryzen 3.

The EPYC 7473X has a launch MSRP of $3900, while the Ryzen 3 4300G has no launch MSRP listed. The EPYC is not multiplier-unlocked, while the Ryzen 3 is. The EPYC’s market segment is Server/Workstation; the Ryzen 3’s is Desktop. The EPYC’s part number is 100-000000507 WOF100-000000507, and the Ryzen 3’s is 100-000000144. Both are listed as Active in production status.

Head-to-Head Benchmarks

The EPYC 7473X wins all six head-to-head Cinebench tests, with margins that are remarkably consistent. In Cinebench R15 multi-core, the EPYC scores 5078 against 845, a 500.9% delta. Single-core in R15 shows 716 versus 119, a 501.7% delta. This pattern repeats across every Cinebench generation.

Cinebench R20 multi-core gives 21162 for the EPYC and 3522 for the Ryzen 3, a 500.9% advantage. Single-core R20 shows 2987 versus 497, a 501% delta. Cinebench R23 multi-core yields 50388 against 8387, a 500.8% margin, and single-core R23 shows 7113 versus 1184, also 500.8%.

The consistency of these deltas—all hovering near 500%—suggests that the EPYC’s advantage stems from core count and cache scaling rather than clock speed or per-core efficiency. The Ryzen 3 4300G’s higher base and boost clocks do not translate into single-core wins; the EPYC’s Zen 3 architecture and 768 MB L3 provide superior per-thread performance in these workloads. In fact, the EPYC’s single-core scores are over six times higher than the Ryzen 3’s in every Cinebench test, despite the Ryzen 3 having a 1.0 GHz higher boost clock.

The Ryzen 3 4300G does have additional PassMark benchmarks in its dataset that the EPYC lacks, including data compression at 137681, data encryption at 8176, extended instructions at 9148, find prime numbers at 20, floating point math at 17577, integer math at 29737, multithread at 9849, physics at 454, random string sorting at 14503, and single thread at 2425. These scores are not directly comparable to the EPYC since the head-to-head data only includes Cinebench tests. The EPYC’s nearest rivals—Intel Xeon 6315P at 14574, AMD Ryzen 5 5500U at 14589, and Intel Core i5-9600K at 14605—all hover within 0.2% of its average score. The Ryzen 3 4300G’s nearest rivals include the AMD Ryzen 3 4100 at 14505, the Intel Xeon 6315P at 14574, and the EPYC 7473X at 14574, all within 0.6%. This clustering indicates that average benchmark scores compress architectural differences, while targeted tests like Cinebench reveal the EPYC’s substantial throughput advantage.