AMD EPYC 7443 vs AMD Ryzen 3 4300G Comparison

The Verdict

The AMD EPYC 7443 is the decisive winner across every recorded benchmark in this comparison. The data shows a consistent 82.6% advantage for the EPYC 7443 in all six Cinebench tests, covering both single-core and multi-core workloads. The Ryzen 3 4300G does not win a single head-to-head test in the database.

This is not a close contest. The EPYC 7443 is a 24-core, 48-thread Zen 3 server processor built for multi-threaded throughput, while the Ryzen 3 4300G is a 4-core, 8-thread Zen 2 desktop chip with integrated graphics. Anyone running heavily threaded server workloads, virtualization, or professional content creation should choose the EPYC 7443. The Ryzen 3 4300G remains relevant only for lightweight desktop use cases where its integrated Radeon Vega 6 graphics and lower 65 W TDP matter, but even then, the benchmark data shows it trails the EPYC 7443 by an identical 82.6% margin in every test.

The EPYC 7443 also carries a launch MSRP of $2010, while the Ryzen 3 4300G has no recorded launch MSRP in the database. The percentile rankings are nearly identical, with the Ryzen 3 4300G at the 69th percentile and the EPYC 7443 at the 68th percentile, but this reflects their positions across entirely different processor populations.

Architecture Differences

The two processors come from different AMD lineages. The Ryzen 3 4300G uses Zen 2 architecture with the Renoir codename, part of the 4000 series. The EPYC 7443 uses Zen 3 architecture with the Milan codename, part of the EPYC 7003 series. Both are built on a 7 nm process at TSMC, but the similarities end there.

The Ryzen 3 4300G packs 9,800 million transistors on a 156 mm² die. The EPYC 7443 contains 16,600 million transistors spread across 4x 81 mm² dies, reflecting its chiplet-based server design. Core counts differ dramatically: 4 cores and 8 threads versus 24 cores and 48 threads.

Cache hierarchies diverge sharply. Both have 64 KB of L1 cache per core and 512 KB of L2 cache per core. The L3 cache is the major difference: the Ryzen 3 4300G has 4 MB shared L3, while the EPYC 7443 has 128 MB shared L3, a 32x difference.

Memory architecture also separates these parts. The Ryzen 3 4300G supports dual-channel DDR4 with 51.2 GB/s bandwidth and no ECC support. The EPYC 7443 supports eight-channel DDR4 with 204.8 GB/s bandwidth and ECC memory support. PCIe capabilities follow the same pattern: the Ryzen 3 4300G offers Gen 3 with 16 CPU lanes, while the EPYC 7443 offers Gen 4 with 128 CPU lanes.

The Ryzen 3 4300G includes integrated Radeon Vega 6 graphics and has an unlocked multiplier. The EPYC 7443 has no integrated graphics and its multiplier is locked. The Ryzen 3 4300G targets the desktop segment on AMD Socket AM4, while the EPYC 7443 targets the server and workstation segment on AMD Socket SP3.

FAQ

Q: Which processor is faster in single-core workloads?

A: The EPYC 7443 wins all three single-core Cinebench tests by 82.6%. In Cinebench R23 single-core, it scores 6802 versus 1184 for the Ryzen 3 4300G.

Q: How large is the multi-core performance gap?

A: The EPYC 7443 leads by 82.6% in every multi-core test. In Cinebench R23 multi-core, it scores 48183 versus 8387 for the Ryzen 3 4300G.

Q: Does the Ryzen 3 4300G have any integrated graphics?

A: Yes, it includes Radeon Vega 6 integrated graphics. The EPYC 7443 has no integrated graphics at all.

Q: Which processor supports ECC memory?

A: The EPYC 7443 supports ECC memory. The Ryzen 3 4300G does not.

Q: How do their memory bandwidth figures compare?

A: The EPYC 7443 provides 204.8 GB/s over an eight-channel DDR4 bus. The Ryzen 3 4300G provides 51.2 GB/s over a dual-channel DDR4 bus.

Q: What are their percentile rankings in the database?

A: The Ryzen 3 4300G sits at the 69th percentile of all CPUs, while the EPYC 7443 sits at the 68th percentile. Their average benchmark scores are 14503 and 13936, respectively.

Specification Differences

The two processors differ on nearly every specification in the database. Core and thread counts lead the list: 4 cores and 8 threads for the Ryzen 3 4300G versus 24 cores and 48 threads for the EPYC 7443. Base clocks differ at 3.80 GHz versus 2.85 GHz, while boost clocks match at 4.00 GHz for both.

TDP ratings separate them by 135 W: 65 W for the Ryzen 3 4300G and 200 W for the EPYC 7443. The Ryzen 3 4300G uses AMD Socket AM4, while the EPYC 7443 uses AMD Socket SP3. Architecture generations differ as Zen 2 Renoir versus Zen 3 Milan.

Transistor counts and die sizes are distinct: 9,800 million transistors on 156 mm² for the Ryzen 3 4300G, versus 16,600 million transistors on 4x 81 mm² for the EPYC 7443. L3 cache differs from 4 MB shared to 128 MB shared.

Memory support shows a dual-channel 51.2 GB/s DDR4 configuration for the Ryzen 3 4300G and an eight-channel 204.8 GB/s DDR4 configuration for the EPYC 7443. ECC support is absent on the Ryzen 3 4300G and present on the EPYC 7443.

PCIe features differ: Gen 3 with 16 CPU lanes versus Gen 4 with 128 CPU lanes. Integrated graphics exist only on the Ryzen 3 4300G as Radeon Vega 6. The multiplier is unlocked on the Ryzen 3 4300G and locked on the EPYC 7443.

Market segments differ, with the Ryzen 3 4300G in the desktop segment and the EPYC 7443 in the server and workstation segment. Release dates in the database show the Ryzen 3 4300G released in July 2020 and the EPYC 7443 in March 2021. The EPYC 7443 has a recorded launch MSRP of $2010, while the Ryzen 3 4300G has none.

Head-to-Head Benchmarks

The database records six head-to-head comparisons, and the EPYC 7443 wins all six with the identical 82.6% delta. This uniformity across different test types is notable, as it suggests the performance gap scales consistently regardless of workload characteristics.

In Cinebench R15 multi-core, the EPYC 7443 scores 4856 against 845 for the Ryzen 3 4300G. The single-core R15 test shows 685 versus 119. Cinebench R20 multi-core reaches 20236 versus 3522, and R20 single-core shows 2856 versus 497. Cinebench R23 multi-core peaks at 48183 versus 8387, with single-core at 6802 versus 1184.

The Ryzen 3 4300G has additional PassMark benchmark scores in the database, 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. The EPYC 7443 does not have corresponding PassMark scores recorded, so direct comparisons on these tests are not possible.

The Ryzen 3 4300G's nearest rivals in the database include the AMD Ryzen 3 4100 at 14505 average score with a 0% delta, the Intel Xeon 6315P at 14574 with a -0.5% delta, the AMD EPYC 7473X at 14574 with a -0.5% delta, and the AMD Ryzen 5 5500U at 14589 with a -0.6% delta. The EPYC 7443's nearest rivals include the Intel Core i7-8750H at 13868 with a 0.5% delta, the Intel Core i5-10400 at 14037 with a -0.7% delta, the AMD Ryzen Threadripper PRO 3975WX at 13786 with a 1.1% delta, and the AMD EPYC 7552 at 14115 with a -1.3% delta.

Where Each One Wins

The EPYC 7443 wins every benchmark category where both processors have recorded scores. Its 24-core, 48-thread configuration with 128 MB of L3 cache and eight-channel memory makes it the clear choice for multi-threaded server workloads, virtualization, database processing, and any task that scales with core count. The 204.8 GB/s memory bandwidth and 128 PCIe Gen 4 lanes further position it for high-throughput data center environments.

The Ryzen 3 4300G has no benchmark wins in this head-to-head comparison. Its strengths are qualitative rather than quantitative in the recorded data. It offers integrated Radeon Vega 6 graphics, which the EPYC 7443 lacks entirely. Its 65 W TDP is substantially lower than the 200 W TDP of the EPYC 7443, making it suitable for power-constrained desktop builds. Its unlocked multiplier supports overclocking, while the EPYC 7443's multiplier is locked. Its dual-channel memory and 16 PCIe Gen 3 lanes are sufficient for mainstream desktop use.

The Ryzen 3 4300G's average benchmark score of 14503 actually exceeds the EPYC 7443's 13936, and its 69th percentile ranking edges out the EPYC 7443's 68th percentile. These figures reflect the different processor populations each chip is compared against, not head-to-head performance. Within the database's direct comparisons, the EPYC 7443 dominates completely.

For buyers, the decision depends on workload class. Server and workstation users should select the EPYC 7443 for its massive multi-core advantage, ECC memory support, and server-grade I/O. Desktop users who need integrated graphics and lower power consumption should consider the Ryzen 3 4300G, but they should understand that it trails the EPYC 7443 by 82.6% in every directly comparable benchmark.