AMD EPYC 7773X vs Intel Core i7-1355U Comparison

The AMD EPYC 7773X and Intel Core i7-1355U occupy opposite ends of the computing spectrum, yet both hold the 73rd percentile among all CPUs in the database. The data reveals a stark performance disparity, driven by fundamentally different design philosophies. This analysis compares their benchmark results, specifications, and architectural characteristics strictly from the provided facts.

Head-to-Head Benchmarks

The benchmark results are unambiguous: the AMD EPYC 7773X wins all six head-to-head comparisons, with margins that range from substantial to overwhelming. In Cinebench R15 multi-core, the EPYC scores 7825 against the Core i7's 1393, a delta of 461.7%. The single-core R15 test tells a similar story, with the EPYC at 1104 versus 255.5, representing a 332.1% advantage. These are not marginal gains; they reflect a processor designed for throughput versus one optimized for efficiency.

The gap widens dramatically in Cinebench R20. The EPYC 7773X posts a multi-core score of 32608, while the Core i7-1355U manages 4949, yielding a 558.9% delta. In R20 single-core, the EPYC scores 4603 against the Core i7's 698, a 559.5% difference. The pattern suggests that the EPYC's advantage scales with workload intensity, which is consistent with its 64-core, 128-thread configuration. The Core i7's 10 cores and 12 threads simply cannot compete in sustained compute tasks.

Cinebench R23 produces the most extreme margin. The EPYC 7773X achieves 77639 multi-core points, while the Core i7-1355U scores 8286, resulting in an 837% delta. This is the single largest performance gap in the dataset. The single-core R23 test shows the EPYC at 10960 versus 1825, a 500.5% lead. Even in single-threaded workloads, where the Core i7's 5.00 GHz boost clock should theoretically help, the EPYC's Zen 3 architecture delivers over five times the performance. This suggests that the EPYC's 3.50 GHz boost clock, while lower, is far more efficient per cycle.

The win count is decisive: 6 wins for the AMD EPYC 7773X, 0 for the Intel Core i7-1355U. The average benchmark scores reflect this, with the EPYC at 18979 and the Core i7 at 18730. Notably, both processors sit at the 73rd percentile, meaning their average scores are close despite the extreme variance in individual tests. The EPYC's nearest rivals include the Intel Core i5-1335U (0% delta) and Intel Core i5-12400F (-0.3%), while the Core i7's nearest rivals include the AMD EPYC 7643 (0.2%) and Intel Core i5-12400 (0.3%). This indicates that the Core i7's average score is competitive with mid-range desktop CPUs, but the EPYC's average is dragged down by its comparatively weaker single-core results relative to its massive multi-core output.

The Verdict

The data clearly indicates that the AMD EPYC 7773X is the superior processor for compute-intensive workloads. Its 837% lead in Cinebench R23 multi-core and 559.5% lead in R20 single-core make it the definitive choice for server and workstation applications requiring massive parallel processing. The EPYC's 64 cores and 128 threads, combined with its 768 MB of shared L3 cache, provide a level of throughput that the Core i7-1355U cannot approach. The launch MSRP is $8800, which reflects its enterprise positioning.

The Intel Core i7-1355U, with a launch MSRP of $469, is a mobile processor designed for a completely different use case. Its 10 cores and 12 threads, along with integrated Iris Xe Graphics 96EU, make it suitable for thin-and-light laptops. The data shows that it loses every benchmark by at least 332%, but its 15W TDP and dual-channel memory support indicate a focus on power efficiency rather than raw performance. The Core i7's passmark scores, such as 3444 in single-thread and 14299 in multithread, are not present in the head-to-head comparison, but they exist in its benchmark suite, suggesting it handles everyday tasks competently.

The verdict from the data is straightforward: choose the AMD EPYC 7773X if the workload demands maximum multi-core performance, as evidenced by its Cinebench results. Choose the Intel Core i7-1355U if the priority is a mobile form factor with integrated graphics and lower power consumption. There is no scenario in the benchmark data where the Core i7 outperforms the EPYC, so the decision rests entirely on the target platform and workload profile.

FAQ

Q: Which CPU has a higher Cinebench R23 multi-core score?

A: The AMD EPYC 7773X scores 77639, while the Intel Core i7-1355U scores 8286. The EPYC leads by 837%.

Q: How do the single-core scores compare in Cinebench R20?

A: The AMD EPYC 7773X scores 4603, and the Intel Core i7-1355U scores 698. The EPYC has a 559.5% advantage.

Q: What is the core and thread count difference?

A: The AMD EPYC 7773X has 64 cores and 128 threads. The Intel Core i7-1355U has 10 cores and 12 threads.

Q: Which processor has a higher TDP?

A: The AMD EPYC 7773X has a TDP of 280W, while the Intel Core i7-1355U has a TDP of 15W.

Q: Does the Intel Core i7-1355U have integrated graphics?

A: Yes, it features Iris Xe Graphics 96EU. The AMD EPYC 7773X has no integrated graphics.

Q: What are the launch MSRPs of these processors?

A: The AMD EPYC 7773X has a launch MSRP of $8800, and the Intel Core i7-1355U has a launch MSRP of $469.

Specification Differences

The two processors differ in nearly every measurable specification. The AMD EPYC 7773X has 64 cores and 128 threads, while the Intel Core i7-1355U has 10 cores and 12 threads. The base clock is 2.20 GHz for the EPYC and 1700.00 MHz for the Core i7. The boost clock is 3.50 GHz for the EPYC and 5.00 GHz for the Core i7. The TDP is 280W for the EPYC and 15W for the Core i7. The EPYC uses AMD Socket SP3, while the Core i7 uses Intel BGA 1744. The EPYC supports DDR4 memory with an eight-channel bus and 204.8 GB/s bandwidth, whereas the Core i7 supports DDR4 and DDR5 with a dual-channel bus and no listed bandwidth. The EPYC has ECC memory support, while the Core i7 does not. The EPYC provides 128 PCIe Gen 4 lanes, while the Core i7 provides 8 lanes. The EPYC has no integrated graphics, but the Core i7 includes Iris Xe Graphics 96EU.

Architecture Differences

The AMD EPYC 7773X is built on the Zen 3 architecture, codenamed Milan-X, part of the EPYC 7003 series. It uses a 7 nm process node from TSMC, with 33,200 million transistors and a die size of 8x 81 mm². Its cache hierarchy includes 64 KB L1 per core, 512 KB L2 per core, and 768 MB shared L3. The Intel Core i7-1355U uses the Raptor Lake architecture, codenamed Raptor Lake-U, part of the Core i7 generation. It uses a 10 nm process node from Intel, with no listed transistor count or die size. Its cache includes 80 KB L1 per core, 1.25 MB L2 per core, and 12 MB shared L3. The EPYC is a server/workstation processor with a release date of 2022-03-21, while the Core i7 is a mobile processor released on 2023-01-03. The EPYC's production status is active, as is the Core i7's. Neither processor has an unlocked multiplier. The EPYC's part number is 100-000000504 WOF100-000000504, while the Core i7's is SRMLY.