AMD Ryzen 5 5500X3D vs Intel Core Ultra 5 250KF Plus Comparison

The Verdict

The benchmark data presents a decisive performance hierarchy. The Intel Core Ultra 5 250KF Plus wins all 11 recorded head-to-head tests, with margins ranging from 28.3% to 78.4%. The AMD Ryzen 5 5500X3D posts an average benchmark score of 37018, placing it in the 85th percentile of all CPUs, while the Intel part achieves an average score of 66159 and sits in the 93rd percentile. The Intel processor is the clear choice for workloads that stress any measured metric, from single-threaded responsiveness to floating-point throughput. The AMD processor, despite its deficit, remains a functional desktop part with a 105 W TDP, 6 cores, and 12 threads, suited for systems where its platform attributes matter more than raw benchmark leadership. The data does not support a scenario where the AMD chip wins a performance comparison; the only reasons to select it would be platform-level considerations such as socket compatibility or memory type, not benchmark outcomes.

Architecture Differences

The two processors represent fundamentally different design philosophies and manufacturing generations. The AMD Ryzen 5 5500X3D uses the Zen 3 architecture, codenamed Vermeer, built on TSMC's 7 nm process. It packs 6 cores and 12 threads, with a base clock of 3.00 GHz and a boost clock of 4.00 GHz. Its cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and a substantial 96 MB of shared L3 cache. The die size is 74 mm². Memory support is limited to DDR4, running on a dual-channel bus with 51.2 GB/s of bandwidth. It supports ECC memory and uses PCIe Gen 4 with 20 lanes from the CPU. The processor is not multiplier unlocked and mounts on AMD Socket AM4.

The Intel Core Ultra 5 250KF Plus belongs to the Core Ultra Series 2, codenamed Arrow Lake Refresh, and is built on TSMC's 3 nm process. It has 18 cores and 18 threads, with a base clock of 4.20 GHz and a boost clock of 5.30 GHz. The cache configuration uses 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3. The die is significantly larger at 243 mm², and the transistor count is listed at 17,800 million. Memory support is DDR5 on a dual-channel bus with 115.2 GB/s of bandwidth, more than double the AMD part's memory bandwidth. ECC memory is supported, and PCIe is Gen 5 with 20 lanes. The multiplier is unlocked, and the socket is Intel Socket 1851. The launch MSRP for the Intel part is $184.

The core count difference is stark: 18 cores versus 6, and 18 threads versus 12. The Intel part also runs at higher clocks on both base and boost. The AMD part counters with a much larger shared L3 cache, 96 MB versus 30 MB, which benefits certain cache-sensitive workloads, though the recorded benchmarks show no such advantage materializing. The process node difference, 7 nm versus 3 nm, and the memory generation gap, DDR4 versus DDR5, further separate the two designs. The Intel part has an unlocked multiplier, while the AMD part is locked. Both processors lack integrated graphics and both support ECC memory.

Head-to-Head Benchmarks

The Intel Core Ultra 5 250KF Plus dominates every recorded test. The largest margin is in floating-point math, where Intel scores 159824 against AMD's 34511, a delta of 78.4% in Intel's favor. This indicates a massive throughput advantage in floating-point-heavy calculations, likely stemming from the higher core count and newer architecture. Integer math shows a smaller but still decisive gap: Intel scores 123030 versus AMD's 60033, a 51.2% advantage.

Data compression favors Intel heavily, with a score of 553155 against 230392, a delta of 58.3%. Data encryption shows Intel at 41292 versus AMD's 13967, a 66.2% margin. Extended instructions follow the same pattern: Intel scores 42880, AMD scores 15925, a 62.9% delta. Prime number finding, a test sensitive to integer throughput and core scaling, gives Intel 452 against AMD's 170, a 62.4% margin.

Multithreaded performance, measured by passmark_multithread, has Intel at 50146 and AMD at 20363, a 59.4% gap. Physics simulation scores 3183 for Intel and 2282 for AMD, the narrowest margin at 28.3%. Random string sorting shows Intel at 67209 versus AMD's 23675, a 64.8% delta. Single-threaded performance, recorded as both passmark_single_thread and passmark_singlethread, gives Intel 4698 and AMD 2941, a 37.4% advantage. This single-thread result is notable because it shows the Intel part leads even in a metric where core count matters less; the higher boost clock of 5.30 GHz versus 4.00 GHz explains part of that gap.

The nearest rivals in the database place both processors in different competitive tiers. The AMD Ryzen 5 5500X3D sits within a narrow band of comparable parts: the AMD Ryzen 5 5600F scores 36945 with a delta of 0.2%, the AMD Ryzen AI 7 PRO 450 scores 37093 with a delta of -0.2%, the Intel Core Ultra 5 225 scores 36938 with a delta of 0.2%, and the Intel Core i9-12900T scores 37112 with a delta of -0.3%. The Intel Core Ultra 5 250KF Plus, by contrast, competes with much stronger parts: the Intel Core 9 273PQE scores 66099 with a delta of 0.1%, the AMD Ryzen 9 7950X3D scores 65914 with a delta of 0.4%, the Intel Core Ultra 5 250K Plus scores 66855 with a delta of -1%, and the AMD EPYC 4465P scores 66925 with a delta of -1.1%. The Intel part's average score of 66159 is nearly double the AMD part's 37018, and its percentile ranking of 93 versus 85 reflects that separation.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core Ultra 5 250KF Plus has an average benchmark score of 66159, while the AMD Ryzen 5 5500X3D has an average score of 37018. The Intel part also holds a higher percentile ranking at 93 versus 85.

Q: How large is the single-threaded performance gap?

A: The Intel Core Ultra 5 250KF Plus scores 4698 in single-threaded tests, compared to 2941 for the AMD Ryzen 5 5500X3D. This represents a 37.4% advantage for the Intel processor.

Q: What is the memory bandwidth difference between the two?

A: The AMD Ryzen 5 5500X3D supports DDR4 with 51.2 GB/s of memory bandwidth. The Intel Core Ultra 5 250KF Plus supports DDR5 with 115.2 GB/s, more than double the AMD part's bandwidth.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 5 5500X3D and the Intel Core Ultra 5 250KF Plus support ECC memory.

Q: What is the core and thread configuration of each?

A: The AMD Ryzen 5 5500X3D has 6 cores and 12 threads. The Intel Core Ultra 5 250KF Plus has 18 cores and 18 threads.

Q: In which benchmark does the AMD processor come closest to the Intel processor?

A: The narrowest margin is in passmark_physics, where the Intel Core Ultra 5 250KF Plus scores 3183 against the AMD Ryzen 5 5500X3D's 2282, a delta of 28.3%. This is the smallest percentage gap across all recorded tests.

Where Each One Wins

The Intel Core Ultra 5 250KF Plus wins every recorded benchmark category, so the use-case split is defined by the degree of its advantage rather than by any AMD victory. The largest wins are in floating-point math (78.4% ahead), data encryption (66.2% ahead), random string sorting (64.8% ahead), and extended instructions (62.9% ahead). These results make the Intel part the stronger option for compute-heavy workloads such as scientific simulation, encryption tasks, and data processing that relies on sorting or complex instruction sets.

The Intel part also leads in multithreaded throughput, scoring 59.4% higher than the AMD part in passmark_multithread and 58.3% higher in data compression. Its 18 cores and 18 threads provide a structural advantage in parallel workloads. The single-threaded lead of 37.4% indicates that even lightly threaded applications, such as general desktop responsiveness or legacy software, will favor the Intel processor. The physics benchmark, with a 28.3% margin, is the closest contest but still firmly in Intel's favor.

The AMD Ryzen 5 5500X3D has no benchmark wins in the recorded data. Its role in a system would be defined by platform characteristics outside the benchmark suite: Socket AM4 compatibility, DDR4 memory support, and a 105 W TDP. The 96 MB shared L3 cache is its most distinctive feature, but the recorded tests do not show it translating into a performance advantage over the Intel part. The nearest rival data places the AMD chip in a peer group with parts like the AMD Ryzen 5 5600F and Intel Core i9-12900T, all within a 0.3% delta of each other. Meanwhile, the Intel Core Ultra 5 250KF Plus sits in a tier with the AMD Ryzen 9 7950X3D and Intel Core Ultra 5 250K Plus, parts with substantially higher average scores.

For workloads where the Intel processor's 125 W TDP and Socket 1851 platform are acceptable, the data supports it as the superior choice in every measured dimension. The AMD part remains viable only in contexts where its platform attributes, particularly the AM4 socket and DDR4 memory, are required or preferred. Within the recorded benchmarks, there is no scenario where the AMD Ryzen 5 5500X3D outperforms the Intel Core Ultra 5 250KF Plus.