AMD EPYC 7543P vs Intel Core Ultra 5 134U Comparison

The Verdict

The AMD EPYC 7543P is a server/workstation processor built for heavy parallel workloads. The Intel Core Ultra 5 134U is a low-power mobile chip. These two parts occupy completely different performance tiers. The data shows the EPYC 7543P wins all six head-to-head Cinebench tests, with margins ranging from 264.7% to 917.3%. If your work involves sustained multi-threaded rendering, compiling, or data processing, the EPYC 7543P is the clear choice. The Intel Core Ultra 5 134U, on the other hand, is suited for thin-and-light laptops where battery life and low heat output matter more than raw compute. It has integrated Arc Xe-LPG 64EU graphics, which the EPYC lacks entirely. Neither chip is unlocked for overclocking, but that matters little for a 225 W server CPU or a 9 W mobile part. Choose the EPYC for throughput; choose the Ultra 5 for portability and integrated graphics.

Architecture Differences

The AMD EPYC 7543P uses the Zen 3 architecture on a 7 nm TSMC process. It is part of the EPYC 7003 series with the Milan codename. The Intel Core Ultra 5 134U uses the Meteor Lake architecture, also on a 7 nm node, but fabricated by Intel. The EPYC has 32 cores and 64 threads, while the Ultra 5 has 12 cores and 14 threads. The EPYC's base clock is listed at 2.80 GHz with a boost of 3.70 GHz, whereas the Ultra 5 has a base clock of 700.00 MHz and a boost of 4.40 GHz. The EPYC packs 256 MB of shared L3 cache and 64 KB L1 and 512 KB L2 per core. The Ultra 5 has 12 MB shared L3, 112 KB L1 per core, and 2 MB L2 per core. The EPYC supports DDR4 memory over an eight-channel bus with 204.8 GB/s bandwidth, while the Ultra 5 supports DDR5 depending on the motherboard over a dual-channel bus with no recorded bandwidth figure. The EPYC supports ECC memory; the Ultra 5 does not. The EPYC provides PCIe Gen 4 with 128 lanes, the Ultra 5 provides PCIe Gen 4 with 8 lanes. The EPYC has no integrated graphics, while the Ultra 5 includes Arc Xe-LPG 64EU. The EPYC uses AMD Socket SP3, the Ultra 5 uses Intel BGA 2551. The EPYC is a server/workstation part, the Ultra 5 is a mobile part.

Head-to-Head Benchmarks

The Cinebench results are lopsided. In Cinebench R15 multi-core, the EPYC scores 5713 against the Ultra 5's 894, a 539% advantage. In R15 single-core, the EPYC scores 806 versus 221, a 264.7% lead. Moving to Cinebench R20 multi-core, the EPYC posts 23806 against 4725, a 403.8% margin. In R20 single-core, the EPYC scores 3360 versus 666, a 404.5% difference. Cinebench R23 multi-core shows the largest gap: the EPYC scores 56683, the Ultra 5 scores 5572, a 917.3% advantage. Even in R23 single-core, the EPYC leads 8002 to 1576, a 407.7% margin. The EPYC wins every recorded benchmark. The closest contest is R15 single-core, but even there the EPYC is nearly four times faster. The Ultra 5 has additional PassMark scores in the database, but no PassMark data exists for the EPYC, so those cannot be compared directly. The head-to-head table records 6 wins for the EPYC and 0 for the Ultra 5. The EPYC's percentile ranking versus all CPUs is 70, the same as the Ultra 5's 70. The average benchmark score for the EPYC is 16395, while the Ultra 5 averages 15910. The EPYC's nearest rivals include the AMD Ryzen 5 4600H (delta 0.3%), Intel Core i7-1260U (delta 0.5%), Intel Core i5-10600KF (delta 1%), and Intel Core i7-10850H (delta 1.2%). The Ultra 5's nearest rivals include the AMD Ryzen 5 40 (delta 0.2%), AMD EPYC 9334 (delta -0.2%), AMD EPYC 75F3 (delta 0.3%), and AMD EPYC 9354P (delta 0.5%).

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7543P has 32 cores and 64 threads. The Intel Core Ultra 5 134U has 12 cores and 14 threads.

Q: What is the largest performance gap between the two in the recorded benchmarks?

A: The largest gap is in Cinebench R23 multi-core, where the EPYC 7543P scores 56683 versus the Ultra 5's 5572, a 917.3% difference.

Q: Does either processor include integrated graphics?

A: The AMD EPYC 7543P has no integrated graphics. The Intel Core Ultra 5 134U includes Arc Xe-LPG 64EU integrated graphics.

Q: What memory types do these processors support?

A: The AMD EPYC 7543P supports DDR4 over an eight-channel bus. The Intel Core Ultra 5 134U supports DDR5 depending on the motherboard over a dual-channel bus.

Q: Which processor supports ECC memory?

A: The AMD EPYC 7543P supports ECC memory. The Intel Core Ultra 5 134U does not.

Q: How many PCIe lanes does each processor provide?

A: The AMD EPYC 7543P provides PCIe Gen 4 with 128 lanes (CPU only). The Intel Core Ultra 5 134U provides PCIe Gen 4 with 8 lanes (CPU only).

Where Each One Wins

The AMD EPYC 7543P wins every recorded Cinebench test, so any workload that relies on those metrics favors it. Multi-threaded rendering, scientific computation, virtualization, and database workloads will benefit from its 32 cores and 64 threads. The 256 MB shared L3 cache and eight-channel DDR4 memory bus support high-throughput data access. The EPYC's 204.8 GB/s memory bandwidth is a major advantage for memory-bound tasks. Its 128 PCIe Gen 4 lanes allow for extensive expansion, including multiple GPUs or high-speed storage arrays. The EPYC is also the only one of the two with ECC memory support, which matters for reliability in server environments. The Intel Core Ultra 5 134U wins in scenarios where the EPYC cannot operate: mobile devices. Its 9 W TDP allows for fanless or low-noise designs in laptops. The integrated Arc Xe-LPG 64EU graphics provide display output and basic acceleration without a discrete GPU. The Ultra 5's higher boost clock of 4.40 GHz helps in short bursts of single-threaded work, though its recorded single-core scores are far below the EPYC's. The Ultra 5 supports DDR5 memory, which may offer lower latency in some configurations, but no bandwidth figure is recorded for it. The Ultra 5's dual-channel memory bus is a fraction of the EPYC's eight-channel width. In practical terms, the Ultra 5 is for portable computing, while the EPYC is for rack-mounted servers and workstations.

Specification Differences

The two processors differ across nearly every recorded specification field. The AMD EPYC 7543P has 32 cores and 64 threads, while the Intel Core Ultra 5 134U has 12 cores and 14 threads. The EPYC's base clock is 2.80 GHz versus the Ultra 5's 700.00 MHz. The EPYC boosts to 3.70 GHz, the Ultra 5 boosts to 4.40 GHz. TDP is 225 W for the EPYC and 9 W for the Ultra 5. The EPYC uses AMD Socket SP3, the Ultra 5 uses Intel BGA 2551. The EPYC is Zen 3 (Milan), the Ultra 5 is Meteor Lake. Both use a 7 nm process, but the EPYC is fabricated by TSMC and the Ultra 5 by Intel. The EPYC has 33,200 million transistors and a die size of 8x 81 mm²; the Ultra 5 has no recorded transistor count or die size. The EPYC's cache is 64 KB L1 per core, 512 KB L2 per core, and 256 MB shared L3. The Ultra 5's cache is 112 KB L1 per core, 2 MB L2 per core, and 12 MB shared L3. The EPYC supports DDR4 with an eight-channel memory bus and 204.8 GB/s bandwidth. The Ultra 5 supports DDR5 depending on the motherboard with a dual-channel bus and no recorded bandwidth. ECC is supported on the EPYC, not on the Ultra 5. PCIe is Gen 4 with 128 lanes for the EPYC, Gen 4 with 8 lanes for the Ultra 5. The EPYC has no integrated graphics; the Ultra 5 has Arc Xe-LPG 64EU. Market segments are Server/Workstation for the EPYC and Mobile for the Ultra 5. Both are Active in production. The EPYC released on 2021-03-14, the Ultra 5 on 2023-12-13. Neither has an unlocked multiplier. The EPYC's part number is 100-000000341100-100000341WOF, the Ultra 5's is SRN84.