AMD EPYC 7303 vs Intel Core i7-14700HX Comparison

The AMD EPYC 7303 and Intel Core i7-14700HX are an unlikely pairing, yet the benchmark database places them as near-identical rivals with average scores of 45960 and 45953, respectively. This places both at the 89th percentile among all CPUs, a statistical tie that masks fundamentally different design philosophies. One is a 16-core server processor built for memory bandwidth and stability, while the other is a 20-core mobile powerhouse with a massive clock-speed advantage. The data reveals a fascinating split: the Intel chip wins 13 of 17 head-to-head benchmarks, but the AMD chip counters with a decisive victory in single-core Cinebench R23 and a commanding lead in extended instruction throughput. The following analysis breaks down what these numbers mean for real-world workloads.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD EPYC 7303 scores 45960, while the Intel Core i7-14700HX scores 45953. The difference is 0 deltaPct, making them statistically identical in overall performance.

Q: How do the two chips compare in multi-core rendering workloads?

A: The Intel chip leads in Cinebench R15 multicore (3812 vs 2448, a 35.8% advantage) and Cinebench R20 multicore (13059 vs 10200, a 21.9% advantage). However, in Cinebench R23 multicore, the gap narrows dramatically to just 1.3% (24595 vs 24286).

Q: Is there any benchmark where the AMD EPYC 7303 wins decisively?

A: Yes, the AMD chip wins Cinebench R23 singlecore by a massive 63% (3428 vs 2103). It also leads in Passmark extended instructions by 22.9% (31603 vs 25718) and in Passmark find prime numbers by 9.1% (180 vs 165).

Q: What is the core and thread count difference?

A: The AMD EPYC 7303 has 16 cores and 32 threads, while the Intel Core i7-14700HX has 20 cores and 28 threads. The Intel chip has more physical cores but fewer total threads.

Q: Which processor has a higher boost clock speed?

A: The Intel Core i7-14700HX boosts to 5.50 GHz, significantly higher than the AMD EPYC 7303's 3.40 GHz boost clock. The base clocks are closer: 2.10 GHz for Intel vs 2.40 GHz for AMD.

Q: How do the two processors compare in memory bandwidth?

A: The AMD EPYC 7303 supports eight-channel DDR4 memory with a bandwidth of 204.8 GB/s, while the Intel Core i7-14700HX uses dual-channel memory (supporting both DDR4 and DDR5) with no bandwidth figure listed in the data.

Architecture Differences

The AMD EPYC 7303 is built on a fundamentally different foundation than the Intel Core i7-14700HX. The AMD chip uses the Zen 3 architecture on a 7 nm process node fabricated by TSMC, with the codename Milan. It packs 8,300 million transistors across a 2x 81 mm² die configuration. In contrast, the Intel chip uses the Raptor Lake architecture on a 10 nm process node fabricated by Intel, with a die size of 257 mm². The process node difference suggests the AMD chip may have an efficiency advantage, though the Intel chip's larger die accommodates more cores.

Cache hierarchies differ substantially. The AMD EPYC 7303 allocates 64 KB of L1 cache per core, 512 KB of L2 per core, and a shared 64 MB L3 cache. The Intel Core i7-14700HX provides 80 KB of L1 per core, a much larger 2 MB of L2 per core, but only 33 MB of shared L3. This means the AMD chip has double the L3 cache, which could benefit workloads with large working sets that exceed the Intel chip's smaller pool.

The memory controllers are another major divergence. The AMD EPYC 7303 supports eight-channel DDR4 with a theoretical bandwidth of 204.8 GB/s, while the Intel chip uses dual-channel memory supporting both DDR4 and DDR5. Both support ECC memory, but the AMD chip's eight-channel design is clearly aimed at server workloads where memory bandwidth is critical.

PCIe connectivity also separates them. The AMD EPYC 7303 provides Gen 4 with 128 lanes (CPU only), while the Intel Core i7-14700HX offers Gen 5 with 16 lanes (CPU only). This is a massive difference in expansion capability, reinforcing the server versus mobile positioning.

Head-to-Head Benchmarks

The benchmark results paint a clear picture of two different performance profiles. The Intel Core i7-14700HX dominates the multi-core and throughput tests. In Cinebench R15 multicore, the Intel chip scores 3812 versus 2448 for AMD, a 35.8% advantage. The gap persists in Cinebench R20 multicore (13059 vs 10200, a 21.9% lead) and in Passmark multithread (36566 vs 28572, also 21.9% ahead). The Intel chip shows particular strength in floating-point math, scoring 93836 versus 64940 for AMD, a 30.8% advantage.

The Intel chip also wins in integer math (131296 vs 113422, a 13.6% lead) and in physics (2252 vs 1792, a 20.4% lead). Even in data compression, the Intel chip edges ahead (438539 vs 428319, a 2.3% lead) and in data encryption (26092 vs 25167, a 3.5% lead). The single-thread Passmark score is overwhelmingly in Intel's favor: 3947 versus 1460, a 63% advantage.

However, the AMD EPYC 7303 has its own victories. The most striking is Cinebench R23 singlecore, where AMD scores 3428 versus 2103 for Intel, a 63% advantage. This is a dramatic reversal from the Passmark single-thread result. The AMD chip also wins in extended instructions (31603 vs 25718, a 22.9% lead) and in find prime numbers (180 vs 165, a 9.1% lead). In Cinebench R15 singlecore, AMD leads 345 versus 296, a 16.6% advantage.

Specification Differences

The specification sheets reveal stark contrasts between these two processors. The AMD EPYC 7303 has 16 cores and 32 threads, while the Intel Core i7-14700HX has 20 cores and 28 threads. Base clocks are 2.40 GHz for AMD and 2.10 GHz for Intel, but boost clocks diverge sharply: 3.40 GHz for AMD versus 5.50 GHz for Intel. The TDP difference is enormous: 130 watts for AMD versus 55 watts for Intel.

The sockets are incompatible: AMD Socket SP3 versus Intel BGA 1964. The AMD chip targets the Server/Workstation segment, while the Intel chip is for Mobile. The AMD EPYC 7303 has no integrated graphics, while the Intel Core i7-14700HX includes UHD Graphics 770. The AMD chip is not multiplier-unlocked, while the Intel chip is.

Memory support differs: AMD only supports DDR4, while Intel supports both DDR4 and DDR5. The memory bus is eight-channel for AMD versus dual-channel for Intel. The AMD chip offers 128 PCIe Gen 4 lanes, while the Intel chip offers 16 PCIe Gen 5 lanes. The AMD chip has a launch MSRP of $604, while no MSRP is listed for the Intel chip. Release dates differ by approximately four months: September 2023 for AMD versus January 2024 for Intel.

The Verdict

The data indicates this is not a question of which processor is better, but which is appropriate for which workload. The Intel Core i7-14700HX wins 13 of 17 benchmarks, including all of the most demanding multi-threaded tests. Its 5.50 GHz boost clock and 20 cores give it a clear advantage in throughput-heavy tasks like video rendering, physics simulation, and integer math. The 63% lead in Passmark single-thread performance suggests excellent responsiveness in everyday tasks.

The AMD EPYC 7303, despite losing the overall head-to-head, wins in specific areas that matter for server workloads. Its 63% lead in Cinebench R23 singlecore is puzzling but significant, suggesting architectural efficiency in certain instruction paths. The 22.9% lead in extended instructions and the 9.1% lead in prime number finding indicate strengths in specialized computational tasks. The eight-channel memory support with 204.8 GB/s bandwidth is a critical advantage for memory-bound server applications, even if not directly measured in these benchmarks.

The near-identical average benchmark scores (45960 vs 45953) suggest that for a mixed workload, either processor would perform similarly. But the distribution of wins tells a different story: the Intel chip is a general-purpose powerhouse, while the AMD chip is a specialized tool for server environments.

Where Each One Wins

The Intel Core i7-14700HX is the clear winner for multi-core rendering and processing tasks. It leads in Cinebench R15 multicore by 35.8%, Cinebench R20 multicore by 21.9%, and Passmark multithread by 21.9%. For floating-point math, the Intel chip is 30.8% ahead, making it the choice for scientific computing and simulations. Its 63% advantage in Passmark single-thread performance also makes it the pick for general desktop responsiveness and single-threaded applications like web browsing or office work.

The AMD EPYC 7303 wins in Cinebench R23 singlecore by 63%, a result that defies the Intel chip's higher clock speed. This suggests the AMD architecture handles certain single-threaded workloads more efficiently. The 22.9% lead in extended instructions makes it suitable for workloads that rely on specialized instruction sets, such as cryptography or specific compression algorithms. The 9.1% lead in prime number finding indicates strength in mathematical operations. The eight-channel memory bandwidth of 204.8 GB/s, while not benchmarked here, positions the AMD chip for large-scale data processing where memory throughput is the bottleneck.

For server workloads, the AMD EPYC 7303's 128 PCIe Gen 4 lanes and eight-channel memory support are decisive factors. For mobile or desktop use, the Intel Core i7-14700HX's 55-watt TDP and integrated graphics make it a more practical choice. The data shows two processors that happen to have similar average scores but excel in completely different domains.