AMD Ryzen 9 9900X vs Intel Core 5 315 Comparison

AMD Ryzen 9 9900X vs Intel Core 5 315

The AMD Ryzen 9 9900X and Intel Core 5 315 occupy distant corners of the processor market. The Ryzen 9 9900X is a 12-core desktop flagship built on Zen 5, while the Core 5 315 is a 6-core mobile chip designed for efficiency. Benchmark data shows a complete sweep for the AMD part, with every recorded head-to-head test won by the Ryzen 9 9900X. The average benchmark score of 57,498 for the AMD processor versus 18,188 for the Intel part reflects a fundamental performance gap, driven by differences in core count, architecture, power envelope, and memory configuration.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9900X has 12 cores and 24 threads. The Intel Core 5 315 has 6 cores and 6 threads, meaning it lacks simultaneous multithreading entirely.

Q: What are the single-thread performance differences?

A: In Cinebench R23 single-core, the Ryzen 9 9900X scores 2253 against 1832 for the Core 5 315, a 23% advantage. In PassMark single-thread, the margin is narrower: 4672 versus 4021, a 16.2% lead for AMD.

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

A: The Ryzen 9 9900X dominates. In Cinebench R23 multi-core, it scores 32172 versus 12981, a 147.8% advantage. PassMark multithread shows 54643 versus 15272, a 257.8% gap.

Q: What memory types does each support?

A: The AMD processor supports DDR5 with a dual-channel bus and 89.6 GB/s bandwidth. The Intel Core 5 315 supports DDR5 and LPDDR5X but uses a single-channel bus with 59.7 GB/s bandwidth. The Intel part does not support ECC memory, while the AMD part does.

Q: Which processor has a higher base clock?

A: The Ryzen 9 9900X has a base clock of 4.40 GHz, while the Core 5 315 has a base clock of 1.50 GHz. The boost clocks are 5.60 GHz for AMD and 4.40 GHz for Intel.

Q: What is the thermal design power (TDP) for each?

A: The AMD Ryzen 9 9900X has a TDP of 120 watts. The Intel Core 5 315 has a TDP of 15 watts, an 8x difference that reflects their desktop versus mobile positioning.

Architecture Differences

The architectural gap between these two processors is substantial. The Ryzen 9 9900X uses Zen 5 architecture on the Granite Ridge codename, built on a 4 nm TSMC process with 16,630 million transistors across a 2x 70.6 mm² die configuration. The Core 5 315 uses Wildcat Lake architecture on a 3 nm Intel process, though transistor count and die size are not recorded in the database. Both are active production parts, but they target different sockets: the AMD processor uses AMD Socket AM5, while the Intel part uses Intel BGA 1516, indicating a soldered mobile design.

Cache hierarchies are completely different. The Ryzen 9 9900X provides 80 KB L1 per core, 1 MB L2 per core, and 64 MB of shared L3 cache. The Core 5 315 offers 192 KB L1 total, 2.5 MB L2 total, and 6 MB shared L3. The AMD chip also has an unlocked multiplier for overclocking, whereas the Intel part is locked. The integrated graphics differ too: the Ryzen 9 9900X includes Radeon Graphics, while the Core 5 315 has Intel Xe3 Graphics with 2 Xe cores.

PCIe support and memory bandwidth further separate the two. The AMD processor uses PCIe Gen 5 with 24 CPU lanes and dual-channel DDR5 memory at 89.6 GB/s. The Intel part uses PCIe Gen 4 with only 6 CPU lanes and single-channel memory at 59.7 GB/s. The AMD chip also supports ECC memory, which the Intel part does not. These differences are not cosmetic: they determine the workload scope each processor can handle, with the Ryzen 9 9900X clearly designed for high-throughput desktop tasks and the Core 5 315 optimized for low-power mobile operation.

Head-to-Head Benchmarks

The recorded head-to-head data shows a clean sweep: 15 wins for the AMD Ryzen 9 9900X and 0 wins for the Intel Core 5 315. The largest margin appears in PassMark integer math, where AMD scores 181056 against 31690, a 471.3% advantage. This workload typically scales with core count and clock speed, both of which favor the Ryzen 9 9900X.

PassMark data compression shows a 367.7% lead for AMD (683579 versus 146143). Extended instructions follow at 320.3% (55243 versus 13143), and random string sorting at 310.3% (72013 versus 17551). The Ryzen 9 9900X also leads by 289.3% in prime number finding (436 versus 112) and by 282.9% in Cinebench R15 multi-core (5008 versus 1308). Floating-point math shows a 182.9% margin (120083 versus 42441), while physics simulation records a 190.7% gap (3381 versus 1163). PassMark multithread shows 54643 versus 15272, a 257.8% difference.

The smallest margins appear in single-threaded tests. PassMark single-thread shows 4672 versus 4021, a 16.2% lead for AMD. Cinebench R23 single-core shows 2253 versus 1832, a 23% difference. Cinebench R15 single-core shows a larger gap at 91.8% (353 versus 184). Data encryption also shows a significant 200.6% lead (33421 versus 11119). These results indicate that even in workloads that do not scale perfectly with core count, the Ryzen 9 9900X maintains a decisive advantage.

The average benchmark scores put the Ryzen 9 9900X at 57,498, which places it in the 92nd percentile of all CPUs in the database. The Core 5 315 averages 18,188, in the 72nd percentile. The nearest rivals for the AMD part include the AMD EPYC 9015 (57555, -0.1%), AMD EPYC 7313 (57399, 0.2%), Intel Core i9-14900 (58115, -1.1%), and Intel Xeon Platinum 8260M (58323, -1.4%). For the Intel part, the nearest rivals are the AMD EPYC 9274F (18189, 0%), Intel Core i7-9700 (18180, 0%), Intel Core i7-1365U (18177, 0.1%), and AMD Ryzen 7 5700U (18176, 0.1%). This positioning confirms that the Ryzen 9 9900X competes with high-end server and desktop parts, while the Core 5 315 sits alongside older mainstream and mobile chips.

Specification Differences

The two processors differ in nearly every measured specification. The Ryzen 9 9900X has 12 cores and 24 threads, while the Core 5 315 has 6 cores and 6 threads. Base clocks are 4.40 GHz versus 1.50 GHz, and boost clocks are 5.60 GHz versus 4.40 GHz. TDP is 120 watts versus 15 watts. Sockets are AMD Socket AM5 versus Intel BGA 1516.

Process technology differs: 4 nm TSMC for AMD versus 3 nm Intel for the Core 5 315. The Ryzen 9 9900X uses Zen 5 architecture with Granite Ridge codename; the Intel part uses Wildcat Lake. Cache configurations are not comparable: AMD provides per-core L1 and L2 plus 64 MB L3, while Intel provides total L1 of 192 KB, 2.5 MB L2, and 6 MB shared L3. Memory support diverges with DDR5 only for AMD versus DDR5 and LPDDR5X for Intel. Memory bus is dual-channel for AMD versus single-channel for Intel. Memory bandwidth is 89.6 GB/s versus 59.7 GB/s. ECC support exists on AMD but not on Intel. PCIe is Gen 5 with 24 lanes versus Gen 4 with 6 lanes. The AMD part has an unlocked multiplier; the Intel part is locked. Integrated graphics differ: Radeon Graphics versus Intel Xe3 Graphics (2 Xe).

Market segments also differ: the Ryzen 9 9900X is a desktop part, while the Core 5 315 is a mobile part. Release dates are recorded as August 14, 2024 for AMD and April 15, 2026 for Intel. The launch MSRP is $499 for the AMD processor and $340 for the Intel processor.

The Verdict

The data supports a clear division of roles. The AMD Ryzen 9 9900X delivers superior performance in every recorded benchmark, with the largest advantages in multi-threaded and integer-heavy workloads. Its 12 cores, 24 threads, dual-channel memory, and 120-watt TDP position it for demanding desktop applications, content creation, and compute-intensive tasks. The benchmark results show it outperforming the Core 5 315 by margins ranging from 16.2% in single-threaded PassMark to 471.3% in integer math.

The Intel Core 5 315 serves a different purpose. Its 6 cores, 6 threads, 15-watt TDP, and single-channel memory indicate a design focused on power efficiency and mobile use. Its lower average benchmark score of 18,188 places it in the 72nd percentile, alongside older desktop parts like the Intel Core i7-9700 and mobile chips like the Intel Core i7-1365U. While it trails the Ryzen 9 9900X across all recorded tests, its 3 nm process node and support for LPDDR5X memory suggest the intended use case is thin-and-light laptops where battery life matters more than raw throughput.

The recorded data confirms the Ryzen 9 9900X as the performance leader without qualification. The Core 5 315 does not win a single head-to-head benchmark. For workloads that require maximum compute throughput, the AMD part is the clear choice based on benchmark evidence. For scenarios prioritizing low power consumption and mobility, the Intel part offers a fundamentally different trade-off, though the database does not include power efficiency benchmarks to quantify that advantage. The 92nd versus 72nd percentile ranking summarizes the overall performance gap, with the Ryzen 9 9900X sitting among server-class processors and the Core 5 315 in the mainstream range.