AMD Ryzen 9 9950X3D vs Intel Core 5 221E Comparison

The AMD Ryzen 9 9950X3D and Intel Core 5 221E occupy very different positions in the desktop processor landscape. The Ryzen 9 9950X3D is a 16-core flagship built on a 4 nm TSMC process, while the Core 5 221E is a 14-core, 20-thread part on Intel’s 10 nm process with a 65 W TDP. The benchmark data shows a clear split: the AMD part wins 13 of 15 head-to-head tests, often by massive margins, while the Intel part takes two single-core victories in Cinebench. The database’s average benchmark scores place the Ryzen 9 9950X3D at 75,779, compared to 40,144 for the Core 5 221E, a difference that underscores their distinct target use cases.

Where Each One Wins

The Ryzen 9 9950X3D is the dominant choice for heavily threaded workloads. Its 16 cores and 32 threads, combined with 128 MB of L3 cache, allow it to excel in rendering, compression, encryption, and physics simulations. In the recorded data, the AMD processor leads in Cinebench R23 multi-core by 62%, scoring 42,018 against 25,933. PassMark multi-thread results show a 130.3% advantage, with scores of 70,255 versus 30,510. The pattern repeats across every multi-core test in the database: floating point math, integer math, prime number finding, data compression, and random string sorting all favor the Ryzen 9 9950X3D by margins ranging from 102.1% to 300.8%. This is a processor built for content creation, scientific computing, and any workload that can utilize many threads simultaneously.

The Intel Core 5 221E wins in two specific Cinebench single-core tests. It scores 368 in Cinebench R15 single-core versus 350 for the AMD part, a 4.9% edge, and scores 3,661 in Cinebench R23 single-core versus 2,259, a 38.3% advantage. These results indicate that the Intel processor has a higher per-core performance ceiling in certain legacy or lightly threaded rendering tasks. However, this advantage does not extend to PassMark single-thread testing, where the Ryzen 9 9950X3D scores 4,737 versus 4,147, a 14.2% lead. The Intel part’s wins are thus narrow and workload-specific, not a general single-thread superiority.

For power-constrained or low-TDP environments, the Intel Core 5 221E has a structural advantage with its 65 W TDP against the AMD part’s 170 W. The data does not include power measurements, but the TDP figures in the database indicate the Intel processor is designed for efficiency-focused builds. The Ryzen 9 9950X3D is not a suitable match for such systems, given its much higher thermal envelope. The choice between these two is therefore straightforward: the AMD part for maximum multi-threaded throughput, the Intel part for single-core Cinebench performance and lower power draw.

Architecture Differences

The two processors are built on fundamentally different architectures. The AMD Ryzen 9 9950X3D uses Zen 5 architecture with the Granite Ridge codename, fabricated on a 4 nm process at TSMC. It has 16 cores and 32 threads, with a base clock of 4.30 GHz and a boost clock of 5.70 GHz. The Intel Core 5 221E uses Bartlett Lake codename, fabricated on Intel’s 10 nm process, with 14 cores and 20 threads, running at 2.70 GHz base and 5.20 GHz boost. The AMD part has an unlocked multiplier, while the Intel part is locked.

Cache configurations differ substantially. The Ryzen 9 9950X3D has 80 KB of L1 per core, 1 MB of L2 per core, and 128 MB of L3 cache. The Core 5 221E also has 80 KB of L1 per core, but doubles L2 to 2 MB per core, and has only 24 MB of shared L3. The 128 MB L3 cache on the AMD part is its key differentiator, providing a massive pool for frequently accessed data. This explains its dominance in data-heavy workloads like compression and encryption, where larger caches reduce memory traffic.

Memory support also differs. The AMD processor supports DDR5 only, while the Intel processor supports both DDR4 and DDR5. Both use a dual-channel memory bus with 89.6 GB/s bandwidth. Both support ECC memory. PCIe lane counts differ: the AMD part provides Gen 5 with 24 CPU lanes, the Intel part provides Gen 5 with 16 CPU lanes. The AMD processor includes integrated Radeon Graphics, while the Intel processor includes UHD Graphics 730. Socket compatibility is split: AMD uses Socket AM5, Intel uses Socket 1700.

The transistor count and die size further illustrate the gap. The Ryzen 9 9950X3D has 16,630 million transistors across a 2x 70.6 mm² die. The Core 5 221E has no listed transistor count and a single 257 mm² die. The AMD part’s smaller, denser process and larger cache clearly target high-end performance, while the Intel part’s larger die on an older node targets mainstream efficiency.

Head-to-Head Benchmarks

The head-to-head benchmark data reveals the scale of the performance gap. The largest single win for the Ryzen 9 9950X3D is in PassMark extended instructions, where it scores 73,011 against 18,216, a 300.8% advantage. This test measures AVX and SIMD instruction throughput, indicating the AMD part’s superior vector processing capabilities. The second largest win is in PassMark data compression: 908,421 versus 324,285, a 180.1% lead. The AMD processor also wins PassMark find prime numbers by 254.3%, scoring 613 versus 173.

In multi-core Cinebench tests, the AMD processor leads R15 multi-core by 150.1% (6,536 versus 2,613) and R23 multi-core by 62% (42,018 versus 25,933). PassMark multi-thread shows a 130.3% lead (70,255 versus 30,510). PassMark physics, which simulates rigid body interactions, favors the AMD part by 154.3% (5,670 versus 2,230). Floating point math sees a 102.1% advantage (159,724 versus 79,028), and integer math a 106.4% lead (243,209 versus 117,813). Data encryption shows a 131.9% edge (44,536 versus 19,205), and random string sorting a 153.2% lead (95,423 versus 37,686).

The Intel Core 5 221E’s wins are confined to Cinebench single-core tests. In Cinebench R15 single-core, it scores 368 versus 350, a 4.9% margin. In Cinebench R23 single-core, it scores 3,661 versus 2,259, a 38.3% margin. These are the only two tests where the Intel part takes the lead in the database. Notably, the Intel part does not win PassMark single-thread, where the AMD part scores 4,737 versus 4,147, a 14.2% advantage. The Cinebench single-core results may reflect differences in how the two processors handle the specific test workload, but they do not translate to a general single-thread win.

The average benchmark score for the Ryzen 9 9950X3D is 75,779, placing it at the 95th percentile of all CPUs. Its nearest rivals in the database are the AMD Ryzen 7 PRO 9755 (75,738, 0.1% delta), the AMD Ryzen 7 PRO 9755X3D (75,716, 0.1% delta), the AMD EPYC 8224P (75,582, 0.3% delta), and the Intel Core Ultra 9 285 (75,488, 0.4% delta). The Core 5 221E has an average score of 40,144, placing it at the 87th percentile. Its nearest rivals are the AMD Ryzen 9 270 (40,246, -0.3% delta), the Intel Core i9-13905H (40,313, -0.4% delta), the AMD Ryzen 7 7700 (40,081, 0.2% delta), and the AMD Ryzen AI 9 365 (40,048, 0.2% delta). These percentile placements confirm that the Ryzen 9 9950X3D sits near the very top of the performance spectrum, while the Core 5 221E is a solid mid-range part.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9950X3D has 16 cores and 32 threads. The Intel Core 5 221E has 14 cores and 20 threads.

Q: What is the L3 cache size difference?

A: The AMD Ryzen 9 9950X3D has 128 MB of L3 cache. The Intel Core 5 221E has 24 MB of shared L3 cache.

Q: Which processor wins in multi-core Cinebench R23?

A: The AMD Ryzen 9 9950X3D wins with a score of 42,018, a 62% advantage over the Intel Core 5 221E’s 25,933.

Q: Does the Intel Core 5 221E win any benchmarks?

A: Yes, it wins two Cinebench single-core tests: R15 single-core (368 versus 350, a 4.9% margin) and R23 single-core (3,661 versus 2,259, a 38.3% margin).

Q: What is the TDP difference?

A: The AMD Ryzen 9 9950X3D has a 170 W TDP. The Intel Core 5 221E has a 65 W TDP.

Q: Which processor supports both DDR4 and DDR5 memory?

A: The Intel Core 5 221E supports both DDR4 and DDR5. The AMD Ryzen 9 9950X3D supports DDR5 only.

Specification Differences

The two processors differ in nearly every core specification. The AMD Ryzen 9 9950X3D has 16 cores and 32 threads, while the Intel Core 5 221E has 14 cores and 20 threads. Base clocks are 4.30 GHz for the AMD part and 2.70 GHz for the Intel part. Boost clocks are 5.70 GHz and 5.20 GHz, respectively. TDP is 170 W for the AMD part and 65 W for the Intel part. The AMD processor uses AMD Socket AM5, the Intel processor uses Intel Socket 1700.

The AMD part is built on a 4 nm TSMC process with 16,630 million transistors across a 2x 70.6 mm² die. The Intel part uses a 10 nm Intel process with a 257 mm² die and no listed transistor count. L2 cache per core is 1 MB for AMD and 2 MB for Intel. L3 cache is 128 MB for AMD and 24 MB shared for Intel. Memory support is DDR5 only for AMD, DDR4 and DDR5 for Intel. PCIe lanes are 24 for AMD and 16 for Intel, both Gen 5. Integrated graphics differ: AMD uses Radeon Graphics, Intel uses UHD Graphics 730. The AMD processor has an unlocked multiplier, the Intel processor is locked. Release dates are close: January 5, 2025 for AMD, January 12, 2025 for Intel. The launch MSRP for the AMD Ryzen 9 9950X3D is $699, and for the Intel Core 5 221E it is $232.