AMD EPYC 75F3 vs AMD Ryzen 3 8440U Comparison

Where Each One Wins

The benchmark data splits cleanly along workload type, and the winner in every recorded test is the AMD EPYC 75F3. Across all six head-to-head Cinebench runs, the EPYC 75F3 takes the win with a consistent margin of roughly 403% to 406% over the Ryzen 3 8440U. In multi-core tests, the EPYC 75F3 posts a Cinebench R23 score of 54829 against 10884 for the Ryzen 3 8440U, a 403.8% advantage. Single-core results tell the same story: the EPYC 75F3 scores 7740 in Cinebench R23 single-core versus 1536 for the Ryzen 3 8440U, a 403.9% gap.

The Ryzen 3 8440U has zero head-to-head wins in the recorded data. However, it does have additional Passmark tests in the database that the EPYC 75F3 does not have recorded. Those Passmark results include a single-thread score of 3648, an integer math score of 37468, and a floating point math score of 23017. These are useful for characterizing the Ryzen 3 8440U on its own, but they do not change the head-to-head outcome.

For workloads that scale with core count, rendering, compilation, or heavy server-side processing, the EPYC 75F3 is the clear choice. For mobile users who need a processor in a thin laptop, the Ryzen 3 8440U is the only one of the two that fits that use case at all, given its socket and market segment. The data does not show a single benchmark category where the Ryzen 3 8440U beats the EPYC 75F3, but the Ryzen 3 8440U is a mobile part with integrated graphics, so its role is entirely different.

Architecture Differences

The two processors come from different generations and target completely different platforms. The AMD EPYC 75F3 uses the Zen 3 architecture under the codename Milan, built on a 7 nm process at TSMC. It packs 32 cores and 64 threads. The Ryzen 3 8440U uses Zen 4 under the codename Hawk Point, built on a 4 nm process, also at TSMC, with 4 cores and 8 threads.

Cache layouts differ substantially. The EPYC 75F3 has 64 KB of L1 per core, 512 KB of L2 per core, and a massive 256 MB of shared L3 cache. The Ryzen 3 8440U also has 64 KB of L1 per core, but doubles L2 to 1 MB per core, and has only 8 MB of shared L3. The EPYC's L3 is 32 times larger, which matters for server workloads with large working sets.

Memory support is another major split. The EPYC 75F3 uses DDR4 with an eight-channel memory bus and 204.8 GB/s of memory bandwidth. The Ryzen 3 8440U uses DDR5 with a dual-channel bus and 89.6 GB/s of bandwidth. The EPYC also supports ECC memory, while the Ryzen 3 8440U does not. PCIe lanes differ as well: the EPYC 75F3 provides Gen 4 with 128 lanes (CPU only), while the Ryzen 3 8440U provides Gen 4 with 14 lanes (CPU only).

The EPYC 75F3 is a server and workstation part on AMD Socket SP3, with a 280 W TDP. The Ryzen 3 8440U is a mobile part on AMD Socket FP7, with a 28 W TDP. The EPYC has no integrated graphics; the Ryzen 3 8440U includes Radeon 740M. Transistor counts also differ: 33,200 million for the EPYC versus 20,900 million for the Ryzen 3 8440U. The EPYC uses a multi-die design with 8x 81 mm² dies, while the Ryzen 3 8440U uses a single 137 mm² die.

Clock speeds favor the Ryzen 3 8440U on paper. It has a 3.00 GHz base clock and a 4.70 GHz boost clock. The EPYC 75F3 has a 2.95 GHz base and a 4.00 GHz boost. Despite the Ryzen 3 8440U's higher boost clock, the EPYC's core count and cache size dominate the recorded benchmarks.

The Verdict

The data supports a straightforward conclusion. The AMD EPYC 75F3 wins every recorded head-to-head benchmark by a margin of roughly 403% to 406%. If the workload is multi-threaded rendering, server-side processing, or any task that leverages 32 cores and 64 threads, the EPYC 75F3 is overwhelmingly stronger. Its 256 MB of L3 cache and eight-channel DDR4 memory with 204.8 GB/s of bandwidth make it a server-class part through and through.

The Ryzen 3 8440U is not a competitor to the EPYC 75F3 in raw performance. It is a 4-core, 8-thread mobile processor with integrated Radeon 740M graphics, a 28 W TDP, and a 4.70 GHz boost clock. Its role is in laptops where power efficiency and small size matter. The recorded Passmark results show it can handle integer math at 37468, floating point math at 23017, and single-thread work at 3648, but none of these approach the EPYC's Cinebench scores.

For a buyer building a server or workstation, the EPYC 75F3 is the only choice between these two. For a buyer looking at a laptop, the Ryzen 3 8440U is the only one that exists in that form factor. Comparing them head-to-head is like comparing a freight train to a scooter: the freight train wins on payload, but the scooter fits through the door. The benchmark data confirms the performance gap, and the platform differences confirm the use-case split.

FAQ

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

A: The AMD EPYC 75F3 is faster in every recorded single-core test. In Cinebench R23 single-core, it scores 7740 versus 1536 for the Ryzen 3 8440U, a 403.9% advantage.

Q: Does the Ryzen 3 8440U have integrated graphics?

A: Yes, it includes Radeon 740M integrated graphics. The AMD EPYC 75F3 has no integrated graphics at all.

Q: How much L3 cache does each processor have?

A: The AMD EPYC 75F3 has 256 MB of shared L3 cache. The Ryzen 3 8440U has 8 MB of shared L3 cache.

Q: What memory types do these processors support?

A: The AMD EPYC 75F3 supports DDR4 with an eight-channel memory bus and 204.8 GB/s of bandwidth. The Ryzen 3 8440U supports DDR5 with a dual-channel bus and 89.6 GB/s of bandwidth.

Q: Which processor supports ECC memory?

A: The AMD EPYC 75F3 supports ECC memory. The Ryzen 3 8440U does not support ECC memory.

Q: How many cores and threads does each processor have?

A: The AMD EPYC 75F3 has 32 cores and 64 threads. The Ryzen 3 8440U has 4 cores and 8 threads.

Head-to-Head Benchmarks

The head-to-head data contains six Cinebench tests, and the EPYC 75F3 wins all six. The margins are remarkably consistent, hovering between 403.7% and 403.9% in every test.

In Cinebench R15 multicore, the EPYC 75F3 scores 5526 against 1097 for the Ryzen 3 8440U, a 403.7% delta. The R15 single-core test shows 780 versus 154, a 406.5% delta, the largest single-core margin in the set. Cinebench R20 multicore gives 23028 against 4571, a 403.8% delta, and R20 single-core gives 3250 against 645, a 403.9% delta. Cinebench R23 multicore shows 54829 against 10884, a 403.8% delta, and R23 single-core shows 7740 against 1536, a 403.9% delta.

The consistency of these deltas is notable. Whether the test is single-core or multi-core, the EPYC 75F3 maintains roughly the same proportional advantage. This suggests the performance gap is not tied to core scaling alone. The EPYC's 256 MB of L3 cache, eight-channel memory, and server-class design all contribute, while the Ryzen 3 8440U's higher 4.70 GHz boost clock does not close the gap.

The Ryzen 3 8440U does have additional Passmark benchmarks in the database that are not part of the head-to-head set. These include data compression at 146273, data encryption at 8012, extended instructions at 11059, find prime numbers at 43, floating point math at 23017, integer math at 37468, multithread at 12805, physics at 685, random string sorting at 17725, and single-thread at 3648. These scores give a fuller picture of the Ryzen 3 8440U's capabilities, but they do not appear in the head-to-head comparison, so no direct delta is available.

Specification Differences

The two processors differ in nearly every specification category. The EPYC 75F3 has 32 cores and 64 threads, while the Ryzen 3 8440U has 4 cores and 8 threads. Base clocks are close: 2.95 GHz for the EPYC versus 3.00 GHz for the Ryzen. Boost clocks differ more: 4.00 GHz for the EPYC versus 4.70 GHz for the Ryzen.

TDP is a major differentiator. The EPYC 75F3 is rated at 280 W, the Ryzen 3 8440U at 28 W. Sockets differ as well: the EPYC uses AMD Socket SP3, the Ryzen uses AMD Socket FP7. Architecture is Zen 3 for the EPYC (Milan) and Zen 4 for the Ryzen (Hawk Point). Process nodes are 7 nm for the EPYC and 4 nm for the Ryzen, both from TSMC.

Transistor counts differ: 33,200 million for the EPYC versus 20,900 million for the Ryzen. Die sizes are not directly comparable, as the EPYC uses 8x 81 mm² dies while the Ryzen uses a single 137 mm² die. L1 cache is identical at 64 KB per core. L2 cache differs: 512 KB per core for the EPYC versus 1 MB per core for the Ryzen. L3 cache differs dramatically: 256 MB shared for the EPYC versus 8 MB shared for the Ryzen.

Memory support splits by generation. The EPYC uses DDR4 with an eight-channel bus and 204.8 GB/s bandwidth. The Ryzen uses DDR5 with a dual-channel bus and 89.6 GB/s bandwidth. ECC support is present on the EPYC, absent on the Ryzen. PCIe lanes are 128 for the EPYC and 14 for the Ryzen, both Gen 4 and CPU only. Integrated graphics are absent on the EPYC and present on the Ryzen as Radeon 740M.

Market segments differ: Server/Workstation for the EPYC, Mobile for the Ryzen. Release dates also differ, with the EPYC released in March 2021 and the Ryzen in December 2023. The EPYC has a launch MSRP of $4860. The Ryzen 3 8440U has no launch MSRP recorded. Both are currently active in production, and both have locked multipliers.