AMD Ryzen 9 7900X vs Intel Core i9-13900F Comparison

Head-to-Head Benchmarks

The benchmark data splits this matchup into two distinct personalities. The AMD Ryzen 9 7900X wins 9 of 23 head-to-head tests, while the Intel Core i9-13900F wins 14. The most dominant Intel victory comes in Cinebench R23 single-core, where the i9-13900F scores 5778 against the Ryzen's 2016.5, a 65.1% advantage. That is a massive gap in lightly threaded performance, and it repeats in Cinebench R15 single-core with a 44.5% Intel lead (582 versus 323). The Intel chip also wins Cinebench R23 multi-core decisively, scoring 40928 versus 29300, a 28.4% margin.

The Ryzen 9 7900X has its own headline wins. In Cinebench R15 multi-core, the AMD part leads by 16.9% with a score of 4820.5 against Intel's 4125. The largest single delta for AMD appears in PassMark find prime numbers, where the Ryzen scores 388 versus 204, a 90.2% advantage. PassMark extended instructions also favors AMD heavily, with a 30.4% lead (47619 versus 36525). In 3DMark 16-thread testing, the AMD chip scores 10972 against Intel's 9957, a 10.2% win. 3DMark 8-thread also goes to AMD by 5%, with scores of 7798 and 7426 respectively.

The multi-threaded picture is more nuanced. 3DMark max-threads favors Intel by 10.4% (13985 versus 12536), but PassMark multithread favors AMD by 3.4% (51406 versus 49693). Geekbench multi-core is nearly a tie, with Intel ahead by only 2.1% (19680 versus 19267). PassMark physics goes to AMD by 10.6% (3060 versus 2766), while PassMark floating point math goes to Intel by 20.7% (131007 versus 103952). PassMark integer math favors Intel by 10% (188022 versus 169273). The single-thread PassMark tests give Intel a 3.8% edge (4406 versus 4238). In 3DMark 2-thread and 4-thread, Intel leads by 5.7% and 5.5% respectively.

Smaller margins define the rest. PassMark data compression is effectively even, with Intel ahead by 0.4% (635147 versus 632505). PassMark data encryption favors Intel by 2.5% (38214 versus 37263). PassMark random string sorting goes to AMD by 6% (74658 versus 70441). Geekbench single-core goes to AMD by 3.3% (2617 versus 2533). Overall average benchmark scores place the Ryzen at 53288 against the i9's 51730, a 3% gap in favor of AMD, though both sit at the 91st percentile among all CPUs.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 9 7900X uses the Zen 4 architecture on the Raphael codename, built on a 5 nm process at TSMC with 13,140 million transistors and a die size of 2x 71 mm². It offers 12 cores and 24 threads. The Intel Core i9-13900F uses Raptor Lake architecture on the Raptor Lake-S codename, built on Intel's 10 nm process with a 257 mm² die. It offers 24 cores and 32 threads, meaning the Intel part has twice the core count and 8 more threads.

Cache layouts differ notably. The Ryzen has 64 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3 cache. The Intel part has 80 KB of L1 per core, 2 MB of L2 per core, and only 36 MB of shared L3. Despite the larger L3 on AMD, Intel's higher per-core L1 and L2 allocations may contribute to its single-thread performance edge in several tests. The Ryzen's base clock is 4.70 GHz with a boost of 5.60 GHz. The i9-13900F lists a base clock of 2000.00 MHz with the same 5.60 GHz boost. The Ryzen has a 170 W TDP, while the Intel part is rated at 65 W, a substantial difference in power envelope.

Memory support also diverges. The Ryzen supports only DDR5 with dual-channel memory and a rated bandwidth of 83.2 GB/s. The Intel part supports both DDR4 and DDR5 with dual-channel memory, but the database records no bandwidth figure for it. Both support ECC memory. PCIe connectivity differs: the Ryzen offers Gen 5 with 24 lanes (CPU only), while the Intel part offers Gen 5 with 20 lanes (CPU only). The Ryzen includes integrated Radeon Graphics, while the Intel i9-13900F has no integrated graphics listed. The Ryzen has an unlocked multiplier; the Intel part does not. The AMD part uses Socket AM5, the Intel part uses Socket 1700. Release dates are also distinct, with the Ryzen launching earlier than the Intel part.

The Verdict

The data supports a clear split decision. Users who prioritize heavily threaded rendering workloads in Cinebench R23 should choose the Intel Core i9-13900F, which beats the Ryzen by 28.4% in that specific test. Users who need maximum single-thread performance in Cinebench R15 or R23 should also choose Intel, given the 44.5% and 65.1% leads respectively. The Intel part also wins 3DMark max-threads by 10.4% and PassMark floating point math by 20.7%, making it the stronger choice for those workloads.

However, the AMD Ryzen 9 7900X wins PassMark multithread by 3.4%, the broader PassMark multithread aggregate, and holds a significant lead in PassMark extended instructions (30.4%) and find prime numbers (90.2%). It also wins Cinebench R15 multi-core by 16.9%, which is notable because that test favors the AMD architecture despite Intel winning the newer Cinebench R23 multi-core. The Ryzen's average benchmark score of 53288 is about 3% higher than Intel's 51730, suggesting that across the full test suite, AMD edges ahead on overall balance. The Ryzen also includes integrated graphics, unlocked multiplier, and a smaller 5 nm process, which may appeal to users who want those features. Both processors sit at the 91st percentile, so neither is a weak choice, but the specific workload determines the winner.

Specification Differences

The two processors differ in several recorded specifications. The Ryzen 9 7900X has 12 cores and 24 threads, while the i9-13900F has 24 cores and 32 threads. The Ryzen's base clock is 4.70 GHz versus the Intel's 2000.00 MHz base clock, though both share a 5.60 GHz boost clock. TDP differs significantly: 170 W for AMD versus 65 W for Intel. The process node is 5 nm (TSMC) for AMD versus 10 nm (Intel) for Intel. Die size is 2x 71 mm² for AMD versus 257 mm² for Intel. Transistor count is 13,140 million for AMD, while Intel's is not recorded.

Cache differs on all levels. AMD has 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. Intel has 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3. Memory support: AMD is DDR5 only; Intel supports both DDR4 and DDR5. Memory bandwidth is 83.2 GB/s for AMD, not recorded for Intel. Both use dual-channel memory and support ECC. PCIe: AMD has Gen 5 with 24 lanes, Intel has Gen 5 with 20 lanes. Integrated graphics: AMD has Radeon Graphics, Intel has none. Socket: AMD Socket AM5 versus Intel Socket 1700. The AMD multiplier is unlocked; Intel's is not. Launch MSRP: the Ryzen 9 7900X launched at $549, the Core i9-13900F at $524.

FAQ

Q: Which processor has more cores?

A: The Intel Core i9-13900F has 24 cores and 32 threads, while the AMD Ryzen 9 7900X has 12 cores and 24 threads.

Q: Which processor scores higher in Cinebench R23 multi-core?

A: The Intel Core i9-13900F scores 40928, which is 28.4% higher than the AMD Ryzen 9 7900X's 29300.

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 7900X has an average benchmark score of 53288, about 3% higher than the Intel Core i9-13900F's 51730.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 7900X and the Intel Core i9-13900F support ECC memory.

Q: Which processor includes integrated graphics?

A: The AMD Ryzen 9 7900X includes Radeon Graphics, while the Intel Core i9-13900F has no integrated graphics listed.

Q: Which processor has the larger L3 cache?

A: The AMD Ryzen 9 7900X has 64 MB of shared L3 cache, compared to 36 MB on the Intel Core i9-13900F.

Where Each One Wins

The AMD Ryzen 9 7900X wins in workloads that stress extended instruction sets and prime number calculations. Its 30.4% lead in PassMark extended instructions and 90.2% lead in PassMark find prime numbers make it the clear choice for those specific computational tasks. It also wins PassMark multithread by 3.4%, PassMark physics by 10.6%, and PassMark random string sorting by 6%. The Ryzen wins Cinebench R15 multi-core by 16.9%, which is a meaningful result for legacy multi-threaded rendering tests. It also wins Geekbench single-core by 3.3% and 3DMark 8-thread by 5%, along with a 10.2% win in 3DMark 16-thread.

The Intel Core i9-13900F wins in modern multi-core rendering and floating point workloads. Its 28.4% lead in Cinebench R23 multi-core and 44.5% lead in Cinebench R15 single-core position it as the stronger choice for current Cinebench rendering. The 65.1% advantage in Cinebench R23 single-core is the largest margin in the entire comparison. Intel also dominates in 3DMark max-threads (10.4% ahead), PassMark floating point math (20.7% ahead), and PassMark integer math (10% ahead). The i9 wins PassMark data compression, data encryption, and both PassMark single-thread tests, along with 3DMark 2-thread and 4-thread tests. For users running current rendering software, floating point calculations, or heavily threaded 3DMark workloads, the Intel part is the data-backed pick.