AMD Ryzen 9 9950X3D vs Intel Core 5 315 Comparison

The AMD Ryzen 9 9950X3D and Intel Core 5 315 occupy opposite ends of the desktop and mobile spectrum. The data shows a decisive performance gap, with the Ryzen 9 winning all 15 recorded head-to-head comparisons. The Intel Core 5 315, a low-power mobile part, is not competitive in raw throughput, but its efficiency and platform traits tell a different story.

Head-to-Head Benchmarks

The benchmark results are one-sided. The Ryzen 9 9950X3D wins every single recorded test, but the margin varies wildly depending on workload type. In single-threaded tasks, the lead is modest. The PassMark single-thread test shows a 17.8% advantage for the AMD part, scoring 4737 against 4021. Cinebench R23 single-core is similar, with the Ryzen 9 posting 2259 versus 1832, a 23.3% gap. These are the closest results in the entire comparison.

Multi-threaded tests reveal the true scale of the difference. Cinebench R23 multicore shows the Ryzen 9 at 42018 against 12981 for the Intel, a 223.7% advantage. The older Cinebench R15 multicore test is even more lopsided, with the AMD chip scoring 6536 versus 1308, a 399.7% gap. PassMark multi-thread shows 70255 against 15272, a 360% lead.

The largest deltas appear in specialized compute tasks. PassMark integer math shows a 667.5% difference, with 243209 versus 31690. Data compression is nearly as extreme, with the Ryzen 9 scoring 908421 against 146143, a 521.6% gap. Extended instructions show 73011 versus 13143, a 455.5% lead. Find prime numbers, floating-point math, physics, and random string sorting all show deltas between 276.3% and 447.3%. Data encryption shows a 300.5% gap, with 44536 versus 11119.

The pattern is clear: the Ryzen 9 9950X3D scales massively with thread count and sustained load. The Intel Core 5 315, with only 6 threads total, simply cannot keep up in any throughput-heavy scenario. The single-thread results are the only place where the Intel part demonstrates a competitive architectural baseline, but even there, it trails by roughly a fifth.

Architecture Differences

The two processors are built on fundamentally different platforms. The AMD Ryzen 9 9950X3D uses the Zen 5 architecture, codenamed Granite Ridge, and belongs to the 9000 series. It is manufactured on a 4 nm process at TSMC, with the die composed of 2x 70.6 mm² chiplets and 16,630 million transistors. The Intel Core 5 315 uses the Wildcat Lake codename, built on a 3 nm process at Intel. The architecture name is not recorded, but the generation is listed as Core 5.

The core and cache configuration explains much of the performance delta. The Ryzen 9 has 16 cores and 32 threads, with 80 KB of L1 per core, 1 MB of L2 per core, and a massive 128 MB of L3 cache. The Intel part has 6 cores and 6 threads, with 192 KB of L1 total, 2.5 MB of L2, and 6 MB of shared L3. The AMD part has over 20 times the L3 cache, which heavily benefits workloads with large working sets.

Memory support also differs sharply. The Ryzen 9 uses DDR5 in dual-channel mode, with a memory bandwidth of 89.6 GB/s. The Intel Core 5 supports DDR5 and LPDDR5X, but only in single-channel mode, with 59.7 GB/s of bandwidth. The AMD chip also supports ECC memory, while the Intel part does not. PCIe connectivity is another divider: the Ryzen 9 offers Gen 5 with 24 CPU lanes, while the Intel part offers Gen 4 with only 6 lanes.

The integrated graphics differ too. The Ryzen 9 includes Radeon Graphics, while the Intel part uses Intel Xe3 Graphics with 2 Xe cores. The Intel part is soldered to the board via BGA 1516, whereas the AMD chip uses the desktop AM5 socket. The Intel chip has a 15 W TDP, a mobile-class power envelope, while the AMD part is rated at 170 W. The Ryzen 9 has an unlocked multiplier; the Intel part does not.

Where Each One Wins

The recorded data gives every win to the AMD Ryzen 9 9950X3D across the 15 head-to-head tests. There are no benchmark categories where the Intel Core 5 315 comes out ahead. That said, the nature of the Intel part suggests its strengths lie outside these measurements. The 15 W TDP, single-channel memory, and 6 lanes of PCIe Gen 4 point to a low-power mobile design, likely for thin-and-light laptops where sustained multi-core performance is secondary to battery life and thermals.

The Ryzen 9 9950X3D, by contrast, is a desktop flagship. Its 170 W TDP and 128 MB L3 cache indicate a part designed for maximum throughput in rendering, compilation, scientific computing, and content creation. The PassMark data compression and encryption scores, which show leads of 521.6% and 300.5%, respectively, are particularly relevant for server-style or archival workloads. The physics score of 5670 versus 1163 further suggests strong simulation performance.

The single-thread results are the only area where the Intel part shows relative competitiveness. A 17.8% gap in PassMark single-thread and a 23.3% gap in Cinebench R23 single-core indicate that for quick, latency-sensitive tasks, the Intel Core 5 315 is not far behind. This could matter for mobile users who prioritize responsiveness over raw throughput. The Intel part also supports LPDDR5X memory, which is unusual and suggests a design for power-efficient mobile platforms.

Specification Differences

The core specifications diverge on nearly every measurable field. The Ryzen 9 9950X3D has 16 cores and 32 threads, while the Intel Core 5 315 has 6 cores and 6 threads. The AMD base clock is 4.30 GHz with a boost of 5.70 GHz; the Intel base is 1.50 GHz with a boost of 4.40 GHz. TDP is 170 W for AMD and 15 W for Intel.

The cache hierarchy is entirely different. The AMD chip uses 80 KB L1 per core and 1 MB L2 per core, totaling 128 MB L3. The Intel chip has 192 KB L1 total, 2.5 MB L2 total, and 6 MB shared L3. Process node: AMD uses 4 nm at TSMC, Intel uses 3 nm at Intel. The AMD die is 2x 70.6 mm² with 16,630 million transistors; the Intel die size and transistor count are not recorded.

Memory: AMD supports DDR5 dual-channel with 89.6 GB/s and ECC. Intel supports DDR5 and LPDDR5X single-channel with 59.7 GB/s and no ECC. PCIe: AMD has Gen 5, 24 lanes; Intel has Gen 4, 6 lanes. Integrated graphics: AMD has Radeon Graphics; Intel has Intel Xe3 Graphics (2 Xe). Socket: AMD uses AM5; Intel uses BGA 1516. The AMD multiplier is unlocked; the Intel multiplier is locked. The release dates are 2025-01-05 for AMD and 2026-04-15 for Intel.

FAQ

Q: Which processor has more cores?

A: The AMD Ryzen 9 9950X3D has 16 cores and 32 threads, while the Intel Core 5 315 has 6 cores and 6 threads.

Q: What is the largest performance gap in the benchmarks?

A: The largest delta is in PassMark integer math, where the AMD part scores 243209 against 31690, a 667.5% lead.

Q: How close are the single-thread scores?

A: The closest margin is PassMark single-thread, with 4737 versus 4021, a 17.8% lead for AMD. Cinebench R23 single-core shows 2259 versus 1832, a 23.3% gap.

Q: Does the Intel Core 5 315 support ECC memory?

A: No, ECC memory support is listed as false for the Intel part. The AMD Ryzen 9 9950X3D supports ECC.

Q: What is the TDP difference?

A: The AMD Ryzen 9 9950X3D has a TDP of 170 W. The Intel Core 5 315 has a TDP of 15 W.

Q: Which part has more L3 cache?

A: The AMD Ryzen 9 9950X3D has 128 MB of L3 cache. The Intel Core 5 315 has 6 MB of shared L3.

The Verdict

The data points to a complete mismatch in performance class. The AMD Ryzen 9 9950X3D wins all 15 recorded head-to-head comparisons, with margins ranging from 17.8% in single-thread to 667.5% in integer math. The 16-core, 32-thread configuration, 128 MB L3 cache, and dual-channel DDR5 bandwidth give it a commanding lead in every measured workload. The 95th percentile ranking versus all CPUs confirms its position as a high-end desktop part.

The Intel Core 5 315, with its 6 cores, 6 threads, 15 W TDP, and single-channel memory, is a different animal entirely. It ranks in the 72nd percentile, and its nearest rivals include the Intel Core i7-9700 and AMD Ryzen 7 5700U, both older or lower-power parts. The data does not show any scenario where the Intel chip wins, but its 3 nm process and 59.7 GB/s memory bandwidth, combined with LPDDR5X support, suggest it is engineered for efficiency in compact mobile devices, not for competing with desktop flagships.

For a user prioritizing raw compute throughput, rendering, or heavy multitasking, the Ryzen 9 9950X3D is the only choice supported by the measurements. For a user prioritizing low power draw, small footprint, and mobile integration, the Intel Core 5 315 serves a purpose that the benchmark suite does not capture. The recorded data offers no crossover point where the two parts compete on equal terms.