AMD EPYC 7303 vs Intel Core i5-14600 Comparison

The Intel Core i5-14600 and AMD EPYC 7303 occupy entirely different corners of the processor market, yet their benchmark averages land within striking distance of one another. The EPYC 7303 holds a slightly higher average benchmark score of 45960 against the i5-14600’s 44889, but that aggregate figure masks a dramatic split in workload behavior. The Intel part wins 14 of the 17 head-to-head tests, often by wide margins, while the AMD server chip takes three specialized wins that point to its data-center DNA. Both processors sit at the 89th percentile of all CPUs, but the path each takes to that ranking could not be more different.

Head-to-Head Benchmarks

The most striking result in this comparison is single-thread performance, where the Intel Core i5-14600 utterly dominates. In Passmark’s single-thread test, Intel scores 4167 against the EPYC’s 1460, a 185.4% advantage. That is not a typical margin; it reflects the massive difference in boost clocks, with Intel reaching 5.20 GHz compared to AMD’s 3.40 GHz. The same pattern repeats in Cinebench R23 single-core, where Intel posts 4300 versus 3428, a 25.4% lead, and in Cinebench R20 single-core, where the gap is a consistent 25.5% (1806 vs 1439).

Multi-threaded workloads tell a similar story, though with less extreme percentages. The i5-14600 wins Cinebench R23 multi-core by 25.4%, scoring 30464 against 24286. Cinebench R20 multi-core shows the same 25.4% delta (12794 vs 10200), and the Passmark multithread test lands at a 25.5% Intel advantage (35848 vs 28572). The consistency of these Cinebench deltas—all hovering near 25.4%—suggests a clock-speed-driven advantage that persists across rendering loads regardless of thread count.

The floating-point math test is where Intel opens its largest non-single-thread gap. The i5-14600 scores 85759 versus 64940 for the EPYC, a 32.1% lead. Physics simulation also favors Intel heavily, with a 30% margin (2330 vs 1792). Integer math is closer, with Intel ahead by just 3.2% (117078 vs 113422), and data compression shows a narrow 1.5% Intel edge (434620 vs 428319). Random string sorting goes Intel’s way by 13.7% (48043 vs 42259).

The AMD EPYC 7303’s three wins are concentrated in areas that matter more in server environments. Extended instructions is its best result, with a score of 31603 against Intel’s 25674, an 18.8% advantage. Prime number finding goes AMD’s way by 13.9% (180 vs 155), and data encryption is a virtual tie, with AMD ahead by just 0.3% (25167 vs 25082). These are narrow victories in the encryption case, but the extended instructions margin is substantial and shows where the Zen 3 architecture flexes its muscles.

Architecture Differences

The two processors are built on fundamentally different silicon. Intel’s Core i5-14600 uses Raptor Lake-R architecture on a 10 nm process fabricated by Intel itself, with a die size of 257 mm². AMD’s EPYC 7303 uses Zen 3 architecture on TSMC’s 7 nm node, with a dual-die design totaling 2x 81 mm² and 8,300 million transistors. The process node advantage goes to AMD, but the clock speed advantage goes decisively to Intel, whose 5.20 GHz boost far exceeds the EPYC’s 3.40 GHz ceiling.

Core counts favor the server part. The EPYC 7303 packs 16 cores and 32 threads, while the i5-14600 has 14 cores and 20 threads. Intel’s hybrid layout—Raptor Lake uses performance and efficiency cores—allows it to hit higher single-thread speeds despite fewer total threads. Cache configurations also diverge sharply. AMD offers 64 MB of shared L3 cache, nearly triple Intel’s 24 MB, and uses a per-core L2 of 512 KB versus Intel’s 2 MB per core. L1 differs as well, with Intel at 80 KB per core and AMD at 64 KB per core.

Memory architecture is a major differentiator. The EPYC 7303 supports eight-channel DDR4 memory with a rated bandwidth of 204.8 GB/s, while the i5-14600 uses dual-channel DDR4 or DDR5 with no specific bandwidth figure listed. Both support ECC memory, which is notable for a desktop part. PCIe connectivity also splits along market lines: AMD provides 128 Gen 4 lanes, while Intel offers 16 Gen 5 lanes. The EPYC has no integrated graphics, whereas Intel includes UHD Graphics 770.

Power and platform targets differ as expected. The EPYC 7303 carries a 130 W TDP and uses AMD Socket SP3, while the i5-14600 runs at 65 W TDP on Intel Socket 1700. Both processors have locked multipliers, and both are marked as active production parts. The release dates are close, with Intel launching in January 2024 and AMD in September 2023, but the market segments could not be further apart: Desktop for Intel, Server/Workstation for AMD.

Where Each One Wins

The Intel Core i5-14600 is the clear choice for latency-sensitive and clock-dependent workloads. Its 185.4% single-thread advantage in Passmark is the headline, but the 30% physics win and 32.1% floating-point win show that the architecture’s strength extends beyond simple frequency scaling. For rendering, content creation, and general desktop productivity, the i5-14600’s Cinebench scores—25.4% ahead across R15, R20, and R23 multi-core tests—make it the better performer in nearly every mainstream application. Data compression and random string sorting also favor Intel, which suggests advantages in archiving and text-processing tasks.

The AMD EPYC 7303 earns its keep in specific server-oriented scenarios. The 18.8% lead in extended instructions points to workloads that leverage AVX-512-style instruction sets or other specialized operations, where the Zen 3 core design is more efficient than Intel’s hybrid approach. The 13.9% edge in prime number finding indicates strength in integer-heavy mathematical workloads, and the near-tie in data encryption—a 0.3% AMD win—shows the EPYC can hold its own in security-related tasks despite lower clock speeds. The eight-channel memory interface and 128 PCIe lanes, while not directly benchmarked, signal that the platform is built for high-throughput storage and networking environments.

Neither processor wins in every category, but the split is lopsided. Intel takes the broad swath of general-purpose tests, while AMD wins only where its larger L3 cache and server-oriented instruction handling come into play. For a workstation pulling double duty as a development machine and a database server, the EPYC’s wins in extended instructions and encryption could be decisive. For anything else, the i5-14600 is faster.

FAQ

Q: Which processor has better single-thread performance?

A: The Intel Core i5-14600 is vastly ahead, scoring 4167 in Passmark single-thread versus the AMD EPYC 7303’s 1460, a 185.4% advantage.

Q: How do the two compare in multi-threaded rendering?

A: Intel wins all Cinebench multi-core tests by 25.4%, including R23 (30464 vs 24286) and R20 (12794 vs 10200). Passmark multithread also goes Intel’s way by 25.5% (35848 vs 28572).

Q: Where does the AMD EPYC 7303 outperform the Intel part?

A: The EPYC wins in extended instructions (31603 vs 25674, an 18.8% lead), prime number finding (180 vs 155, a 13.9% lead), and data encryption (25167 vs 25082, a 0.3% lead).

Q: What are the core and thread counts for each?

A: The EPYC 7303 has 16 cores and 32 threads, while the i5-14600 has 14 cores and 20 threads.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i5-14600 and AMD EPYC 7303 list ECC memory support.

Q: What is the L3 cache difference?

A: The AMD EPYC 7303 has 64 MB of shared L3 cache, while the Intel Core i5-14600 has 24 MB shared.

The Verdict

The data presents a simple choice for most users: the Intel Core i5-14600 wins the majority of benchmarks, and it wins them by large margins in single-thread and floating-point work. Its 25.4% Cinebench multi-core lead and 185.4% single-thread advantage make it the better processor for desktops, workstations, and any workload where latency and clock speed matter. The 65 W TDP and integrated graphics add to its appeal for mainstream systems, and the fact that it matches a 130 W server chip in average benchmark score while using half the power is telling.

The AMD EPYC 7303 is not without merit, but its strengths are narrow. The extended instructions win by 18.8% and the prime number lead by 13.9% point to specialized compute tasks, and the eight-channel memory bus with 204.8 GB/s bandwidth serves server workloads that the benchmarks do not fully capture. For users running encryption-heavy services, mathematical simulations, or instruction-set-specific applications, the EPYC’s wins could outweigh its losses. The 89th percentile ranking for both chips confirms they are high performers, but percentile alone does not tell the full story.

Pick the Intel Core i5-14600 for general-purpose computing, content creation, and any task where single-thread speed is critical. Pick the AMD EPYC 7303 if your workload centers on extended instructions, prime number computation, or if you need the platform’s massive memory bandwidth and PCIe lane count for server infrastructure. The benchmark data favors Intel in raw speed, but the EPYC’s platform capabilities extend beyond what these tests measure.