AMD Ryzen 9 9900X vs Intel Core 5 221E Comparison

Head-to-Head Benchmarks

The benchmark data delivers a decisive verdict: the AMD Ryzen 9 9900X wins 13 of the 15 recorded head-to-head comparisons, while the Intel Core 5 221E manages only 2 victories. The margin of victory for AMD is frequently massive, not marginal.

The largest single gap appears in PassMark extended instructions, where the Ryzen 9 9900X scores 55,243 against 18,216 for the Core 5 221E, a 203.3% advantage. This indicates a dramatic difference in workloads that leverage advanced instruction sets, such as AVX-512 or similar extensions. Data compression shows a 110.8% lead (683,579 vs. 324,285), prime number finding a 152% lead (436 vs. 173), and random string sorting a 91.1% lead (72,013 vs. 37,686). These are not close contests; the AMD processor dominates algorithmic and memory-intensive tasks.

Multi-threaded performance follows the same pattern. In Cinebench R23 multi-core, the Ryzen 9 9900X posts 32,172 versus 25,933 for the Intel part, a 24.1% advantage. Cinebench R15 multi-core shows an even larger gap: 5,008 versus 2,613, a 91.7% difference. PassMark multithread scores 54,643 for AMD against 30,510 for Intel, a 79.1% lead. Integer math (181,056 vs. 117,813, +53.7%), floating-point math (120,083 vs. 79,028, +51.9%), and physics (3,381 vs. 2,230, +51.6%) all favor AMD by roughly half or more.

The Intel Core 5 221E takes its two wins in single-threaded Cinebench tests. In Cinebench R15 single-core, Intel scores 368 versus 353 for AMD, a 4.1% edge. In Cinebench R23 single-core, the gap widens to 38.5% in Intel's favor: 3,661 versus 2,253. This is a notable result, suggesting that the Intel architecture delivers substantially higher per-core performance in at least one rendering workload. However, the PassMark single-thread test tells a different story: AMD wins that comparison 4,672 to 4,147, a 12.7% advantage. So the single-thread picture is mixed, with Intel winning in Cinebench but AMD winning in PassMark.

Overall, the average benchmark score in the database places the Ryzen 9 9900X at 57,498, which puts it in the 92nd percentile of all CPUs. The Core 5 221E averages 40,144, sitting in the 87th percentile. The nearest rivals for the AMD part include the Intel Core i9-14900 (average 58,115, delta -1.1%) and the Intel Xeon Platinum 8260M (average 58,323, delta -1.4%), indicating the 9900X is closely grouped with high-end server and desktop parts. The Core 5 221E's nearest rivals include the AMD Ryzen 7 7700 (average 40,081, delta +0.2%) and the AMD Ryzen AI 9 365 (average 40,048, delta +0.2%), placing it in a mid-range performance bracket.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 9 9900X uses the Zen 5 architecture on the Granite Ridge codename, built on a 4 nm process at TSMC. The Intel Core 5 221E uses the Bartlett Lake codename on a 10 nm process at Intel's own foundry. This process node difference likely explains much of the power and efficiency gap.

The core counts differ in an interesting way. The Ryzen 9 9900X has 12 cores and 24 threads, while the Core 5 221E has 14 cores but only 20 threads. The Intel part does not offer full simultaneous multithreading on all its cores, which is why it has more cores but fewer threads. AMD's 12 cores all support two threads each, giving the 24-thread total.

Cache hierarchies also diverge. Both use 80 KB of L1 cache per core. For L2, AMD uses 1 MB per core, while Intel uses 2 MB per core. The L3 cache is a major differentiator: AMD provides 64 MB, while Intel provides 24 MB shared. This 40 MB difference in L3 capacity likely contributes to AMD's large leads in data-heavy workloads.

Clock speeds show a trade-off. AMD's base clock is 4.40 GHz with a boost of 5.60 GHz. Intel's base clock is much lower at 2.70 GHz, but its boost reaches 5.20 GHz. The lower base clock for Intel is offset by a lower TDP: 65 watts versus 120 watts for AMD. This makes the Core 5 221E a much lower-power part, though the benchmark data shows it cannot match AMD's throughput in most tests.

Memory support differs as well. AMD supports only DDR5, dual-channel, with a memory bandwidth of 89.6 GB/s. Intel supports both DDR4 and DDR5, also dual-channel, with the same 89.6 GB/s bandwidth figure. Both support ECC memory. PCIe lanes differ: AMD offers Gen 5 with 24 lanes (CPU only), while Intel offers Gen 5 with 16 lanes (CPU only). Integrated graphics are present on both: AMD includes Radeon Graphics, while Intel includes UHD Graphics 730.

The AMD processor has an unlocked multiplier, allowing overclocking. The Intel part is locked. The AMD part uses the AMD Socket AM5, while Intel uses Socket 1700. The AMD die size is listed as 2x 70.6 mm², with 16,630 million transistors. The Intel die size is 257 mm², with no transistor count recorded. Release dates differ: AMD launched on 2024-08-14, Intel on 2025-01-12.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 5 221E has more cores at 14, but the AMD Ryzen 9 9900X has more threads at 24 versus 20 for Intel. AMD achieves this with 12 cores each supporting two threads, while Intel's 14 cores do not all support dual threads.

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

A: The Intel Core 5 221E wins in Cinebench R15 single-core (368 vs. 353, a 4.1% edge) and in Cinebench R23 single-core (3,661 vs. 2,253, a 38.5% edge). However, the AMD Ryzen 9 9900X wins the PassMark single-thread test (4,672 vs. 4,147, a 12.7% advantage).

Q: What is the largest performance gap between them?

A: The largest gap is in PassMark extended instructions, where the AMD Ryzen 9 9900X scores 55,243 versus 18,216 for the Intel Core 5 221E, a 203.3% advantage for AMD.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 9900X and the Intel Core 5 221E support ECC memory. AMD supports DDR5 only, while Intel supports both DDR4 and DDR5.

Q: Which processor has a higher TDP?

A: The AMD Ryzen 9 9900X has a TDP of 120 watts, while the Intel Core 5 221E has a TDP of 65 watts. This makes the Intel part the lower-power option by a significant margin.

Q: How do their cache sizes compare?

A: Both have 80 KB L1 per core. For L2, AMD uses 1 MB per core, Intel uses 2 MB per core. For L3, AMD provides 64 MB, while Intel provides 24 MB shared, giving AMD a 40 MB advantage in total L3.

Specification Differences

The two processors differ in nearly every major specification field. The AMD Ryzen 9 9900X uses 12 cores and 24 threads, while the Intel Core 5 221E uses 14 cores and 20 threads. AMD's base clock is 4.40 GHz versus 2.70 GHz for Intel. AMD's boost clock is 5.60 GHz versus 5.20 GHz for Intel. TDP is 120 watts for AMD versus 65 watts for Intel.

The socket differs: AMD uses AMD Socket AM5, Intel uses Intel Socket 1700. The architecture is Zen 5 for AMD, with no architecture field recorded for Intel. Codename is Granite Ridge for AMD, Bartlett Lake for Intel. Process node is 4 nm at TSMC for AMD, 10 nm at Intel for Intel. Transistors are 16,630 million for AMD, with none recorded for Intel. Die size is 2x 70.6 mm² for AMD, 257 mm² for Intel.

Cache differs: L1 is the same at 80 KB per core. L2 is 1 MB per core for AMD, 2 MB per core for Intel. L3 is 64 MB for AMD, 24 MB shared for Intel. Memory support is DDR5 only for AMD, DDR4 and DDR5 for Intel. Memory bus is dual-channel for both, with the same 89.6 GB/s bandwidth. ECC support is present on both.

PCIe is Gen 5 with 24 lanes for AMD, Gen 5 with 16 lanes for Intel. Integrated graphics are Radeon Graphics for AMD, UHD Graphics 730 for Intel. The multiplier is unlocked for AMD, locked for Intel. Release dates differ: AMD on 2024-08-14, Intel on 2025-01-12. The part numbers are 100-000000662 for AMD, SRQDVQ659 for Intel.

The Verdict

The benchmark data is unambiguous. The AMD Ryzen 9 9900X is the superior performer in the vast majority of recorded workloads. It wins 13 of 15 head-to-head comparisons, including every multithreaded test and most single-threaded tests. Its average benchmark score of 57,498 places it in the 92nd percentile of all CPUs, and its nearest rivals include the Intel Core i9-14900, a high-end desktop part. The Core 5 221E, with an average of 40,144, sits in the 87th percentile, with nearest rivals like the AMD Ryzen 7 7700, a mid-range part.

The Intel Core 5 221E does have a meaningful advantage in Cinebench single-core tests, especially R23 where it leads by 38.5%. It also uses much less power, with a 65-watt TDP versus 120 watts for AMD. For workloads that rely heavily on Cinebench-style single-threaded rendering, the Intel part has a clear edge. For everything else, the AMD part is the choice.

The AMD processor's 64 MB of L3 cache, 24 threads, and higher base clock give it substantial advantages in data compression, encryption, math operations, and multithreaded rendering. The data shows the Ryzen 9 9900X is the stronger processor overall, while the Core 5 221E is a lower-power alternative with a specific single-threaded strength.

Where Each One Wins

The AMD Ryzen 9 9900X wins decisively in multithreaded and data-intensive workloads. Cinebench R23 multi-core (32,172 vs. 25,933, +24.1%), Cinebench R15 multi-core (5,008 vs. 2,613, +91.7%), and PassMark multithread (54,643 vs. 30,510, +79.1%) all favor AMD. Data compression shows a 110.8% lead, encryption a 74% lead, and extended instructions a 203.3% lead. Integer math, floating-point math, physics, and prime number finding all favor AMD by margins from 51.6% to 152%. PassMark single-thread also goes to AMD with a 12.7% lead.

The Intel Core 5 221E wins in Cinebench single-core tests. Cinebench R15 single-core shows a 4.1% lead for Intel, and Cinebench R23 single-core shows a 38.5% lead. These are the only two recorded wins for Intel, and they are confined to a single benchmark family. The Intel part also holds advantages in power consumption, with a 65-watt TDP versus 120 watts for AMD, and in L2 cache per core, at 2 MB versus 1 MB.

For users prioritizing rendering performance in Cinebench-style single-threaded workloads, the Core 5 221E is the data-backed choice. For virtually all other measured tasks, including multithreaded rendering, data processing, encryption, and general single-threaded performance as measured by PassMark, the Ryzen 9 9900X is the stronger option.