AMD EPYC 75F3 vs Intel Core Ultra 5 134U Comparison

Intel Core Ultra 5 134U and AMD EPYC 75F3 occupy opposite ends of the computing spectrum, yet their average benchmark scores place them within 0.3% of each other. This makes for a fascinating comparison, not of raw performance parity, but of how two entirely different processors can achieve similar overall results through vastly different means. The data shows a clear split: the EPYC 75F3 dominates every head-to-head compute benchmark, while the Core Ultra 5 134U counters with efficiency and platform features. This analysis breaks down the numbers to determine which processor is the right tool for which job.

Head-to-Head Benchmarks

The AMD EPYC 75F3 wins all six head-to-head benchmark comparisons, and it does so by a wide margin. In Cinebench R23 multi-core, the EPYC 75F3 scores 54,829 against the Core Ultra 5 134U's 5,572, a delta of -89.8%. This is the largest performance gap in the entire comparison and reflects the EPYC's 32 cores and 64 threads against the Ultra 5's 12 cores and 14 threads. The multi-core advantage persists across older Cinebench versions: R20 shows a -79.5% delta (23,028 vs 4,725), and R15 shows -83.8% (5,526 vs 894). These are not marginal wins; they represent a nine-fold to ten-fold difference in multi-threaded rendering performance.

Single-core results tell a similar story, though the gap narrows slightly. In Cinebench R23 single-core, the EPYC 75F3 scores 7,740 versus 1,576 for the Intel part, a -79.6% delta. Cinebench R20 single-core shows -79.5% (3,250 vs 666), and R15 single-core shows -71.7% (780 vs 221). While the EPYC's advantage is smaller in single-threaded tests, it still more than triples the Intel chip's score in every case. This is notable because single-core performance is often where lower-core-count chips can close the gap, but here the EPYC's higher boost clock of 4.00 GHz and Zen 3 architecture simply outclass the Ultra 5's 4.40 GHz boost in actual workload execution.

The benchmark data reveals no area where the Core Ultra 5 134U wins outright. Its best relative showing is in Cinebench R15 single-core, where it trails by only 71.7%, but the EPYC still dominates. The Intel chip's higher boost clock (4.40 GHz vs 4.00 GHz) does not translate into a win in any measured test. The average benchmark score for the Core Ultra 5 134U is 15,910, while the EPYC 75F3 averages 15,859 — a difference of only 0.3%, but this average is skewed by the fact that the Intel chip has far more benchmark entries in its dataset.

The Verdict

From the data, the AMD EPYC 75F3 is the clear performance winner for any compute-intensive workload. If your work involves rendering, simulation, or any task that scales with core count, the EPYC's 32 cores and 64 threads deliver between 3.5x and 10x the performance of the Core Ultra 5 134U, depending on the test. The Cinebench R23 multi-core score of 54,829 versus 5,572 is the defining statistic: this is a server/workstation processor built for heavy lifting, and the benchmark results confirm it is exceptionally good at that job.

The Intel Core Ultra 5 134U, by contrast, offers no benchmark wins in this comparison. However, its value proposition lies in what the EPYC cannot offer: a 9-watt TDP, integrated Arc Xe-LPG graphics, and a mobile form factor. The EPYC 75F3 carries a 280-watt TDP, which means it requires a server platform with substantial cooling and power delivery. The Ultra 5 is designed for thin-and-light laptops where power efficiency is paramount. The benchmark data shows the Intel chip is not a competitor in raw performance, but it is also not meant to be — it is a processor for a completely different use case.

The nearest rivals data places both chips at the 70th percentile of all CPUs, with the Core Ultra 5 134U averaging 15,910 and the EPYC 75F3 at 15,859. They sit within 0.3% of each other in average score, which is a statistical tie. This suggests that for the broader suite of benchmarks included in the average (including PassMark tests for the Intel chip), the two processors end up roughly equivalent overall. But this average masks the fundamental difference: the EPYC wins every compute benchmark while the Ultra 5's lower-power profile and integrated graphics make it viable for portable systems.

FAQ

Q: Which processor has better multi-core performance?

A: The AMD EPYC 75F3 wins all multi-core Cinebench tests. In R23 multi-core, it scores 54,829 versus 5,572 for the Intel Core Ultra 5 134U, a -89.8% delta. R20 multi-core shows 23,028 vs 4,725 (-79.5%), and R15 multi-core shows 5,526 vs 894 (-83.8%).

Q: Is the Intel Core Ultra 5 134U competitive in single-core performance?

A: No. The EPYC 75F3 wins all single-core Cinebench tests. In R23 single-core, the EPYC scores 7,740 versus 1,576 for the Intel chip, a -79.6% delta. R20 single-core shows 3,250 vs 666 (-79.5%), and R15 single-core shows 780 vs 221 (-71.7%).

Q: What is the power consumption difference?

A: The Intel Core Ultra 5 134U has a TDP of 9 watts, while the AMD EPYC 75F3 has a TDP of 280 watts. This is a 271-watt difference, making the Intel processor suitable for battery-powered mobile devices.

Q: Which processor supports ECC memory?

A: The AMD EPYC 75F3 supports ECC memory and uses DDR4 with an eight-channel memory bus and 204.8 GB/s bandwidth. The Intel Core Ultra 5 134U does not support ECC and uses DDR5 with a dual-channel memory bus.

Q: How do their average benchmark scores compare?

A: The Intel Core Ultra 5 134U has an average benchmark score of 15,910, while the AMD EPYC 75F3 averages 15,859. The delta between them is 0.3%, placing them at the same 70th percentile of all CPUs.

Q: Which processor has more PCIe lanes?

A: The AMD EPYC 75F3 provides 128 PCIe Gen 4 lanes (CPU only), while the Intel Core Ultra 5 134U provides 8 PCIe Gen 4 lanes (CPU only). This gives the EPYC a 16x advantage in expansion capability.

Specification Differences

The two processors differ in nearly every core specification. The Intel Core Ultra 5 134U has 12 cores and 14 threads, while the AMD EPYC 75F3 has 32 cores and 64 threads — a 20-core and 50-thread difference. Base clocks are 700 MHz for the Intel chip and 2.95 GHz for the AMD chip, though the Intel part boosts to 4.40 GHz versus 4.00 GHz for the EPYC. TDP is the starkest contrast: 9 watts for the Ultra 5 versus 280 watts for the EPYC 75F3.

Socket support differs completely: the Intel chip uses Intel BGA 2551, while the AMD chip uses AMD Socket SP3. Memory support shows DDR5 for Intel and DDR4 for AMD, with the Intel part using dual-channel memory and the AMD part using eight-channel memory. The EPYC 75F3 offers 204.8 GB/s memory bandwidth and ECC support; the Intel chip has no listed memory bandwidth and no ECC. PCIe capability also diverges sharply: the Intel chip provides 8 Gen 4 lanes, while the EPYC provides 128 Gen 4 lanes. The Intel Core Ultra 5 134U includes integrated Arc Xe-LPG 64EU graphics; the AMD EPYC 75F3 has no integrated graphics. Market segments are mobile versus server/workstation, and release dates are December 2023 versus March 2021.

Architecture Differences

The Intel Core Ultra 5 134U is built on Meteor Lake architecture (Core Ultra Series 1), using a 7 nm process node from Intel. It has a 12 MB shared L3 cache, 2 MB L2 cache per core, and 112 KB L1 cache per core. The AMD EPYC 75F3 uses Zen 3 architecture (Milan), also on a 7 nm process node but manufactured by TSMC. It has a 256 MB shared L3 cache, 512 KB L2 cache per core, and 64 KB L1 cache per core. The EPYC's L3 cache is 244 MB larger than the Intel chip's.

The EPYC 75F3 contains 33,200 million transistors across a die size of 8x 81 mm², while the Intel chip has no listed transistor count or die size. The AMD part supports eight-channel memory and 128 PCIe lanes, reflecting its server heritage. The Intel part is designed for mobile efficiency with a 9-watt TDP and integrated graphics. The EPYC's 280-watt TDP and lack of integrated graphics indicate a processor optimized for socketed server platforms with discrete GPUs. The Intel chip's 14 threads versus the EPYC's 64 threads further underscore the architectural focus on power efficiency over raw throughput.

Where Each One Wins

The AMD EPYC 75F3 wins in every measured performance category. Multi-core workloads are its domain: Cinebench R23 multi-core shows a 49,257-point advantage, R20 multi-core shows an 18,303-point lead, and R15 multi-core shows a 4,632-point margin. Single-core performance also favors the EPYC, with R23 single-core leading by 6,164 points, R20 by 2,584, and R15 by 559. For any task that uses multiple cores — rendering, video encoding, scientific computing, or virtualization — the EPYC 75F3 is the overwhelming choice based on these benchmark results.

The Intel Core Ultra 5 134U wins in platform flexibility and power efficiency, though not in any benchmark test. Its 9-watt TDP versus 280 watts makes it the only viable option for battery-powered laptops. The integrated Arc Xe-LPG 64EU graphics eliminate the need for a discrete GPU in basic display tasks. Its mobile socket (Intel BGA 2551) and DDR5 memory support with dual-channel configuration suit thin-and-light designs. The 134U also has a more recent release date (December 2023 versus March 2021), indicating newer platform features. For portable computing where the 32-core EPYC's server platform is impractical, the Core Ultra 5 134U is the practical choice — not because it wins benchmarks, but because it fits in a laptop.