AMD Ryzen 9 7900 vs Intel Core i9-14900T Comparison

Head-to-Head Benchmarks

The head-to-head data shows a clear split between two very different processor designs. The Intel Core i9-14900T wins 3 of the 15 recorded comparisons, while the AMD Ryzen 9 7900 takes 12. However, the magnitude of each victory tells the more interesting story, as the Intel part dominates in single-threaded workloads while the AMD chip sweeps most multithreaded and specialized tasks.

The most decisive result in the entire comparison belongs to Intel in Cinebench R23 single-core. The i9-14900T scores 4348 against the Ryzen 9 7900's 1966, a 121.2% advantage. That is more than double the score, and it is the single largest delta in either direction across all tests. The Cinebench R15 single-core test reinforces this trend, with the Intel chip scoring 438 versus 315, a 39% lead. These results indicate that the i9-14900T has a substantial per-thread performance edge, likely from its higher boost clock of 5.50 GHz compared to 5.40 GHz, though the architecture differences play a larger role.

Intel also wins Cinebench R23 multi-core, but by a much smaller margin. The i9-14900T scores 30803 against 24776, a 24.3% lead. This is noteworthy because the AMD processor has fewer cores and threads, yet the Intel part still manages to pull ahead in this particular rendering workload. The i9-14900T's 24 cores and 32 threads clearly help here, but the win is less dramatic than the single-core result.

Every other head-to-head test favors the AMD Ryzen 9 7900. The smallest AMD win is in PassMark single-thread, where it scores 4130 against 4016, a 2.8% edge. The largest AMD win is in PassMark find prime numbers, where it scores 380 against 164, a 56.8% advantage. PassMark extended instructions shows a 44% lead for AMD (42253 vs 23660), and PassMark data compression shows a 24.5% lead (577847 vs 436066). The Ryzen 9 7900 also wins PassMark multi-thread by 25% (48347 vs 36239), PassMark physics by 26.6% (3059 vs 2245), and PassMark random string sorting by 27.7% (68474 vs 49484). Other wins include data encryption by 22% (34708 vs 27062), integer math by 15.8% (164075 vs 138149), and floating point math by 5.4% (97943 vs 92699). The Cinebench R15 multi-core test also goes to AMD, with 4020 versus 3104, a 22.8% lead.

Where Each One Wins

The Intel Core i9-14900T is the clear choice for single-threaded performance. Its Cinebench R23 single-core score of 4348 is not just ahead of the Ryzen 9 7900's 1966, it is more than double. The 121.2% delta is a massive gap that will matter in applications that rely heavily on one or two threads, such as older games, certain productivity tools, and lightly threaded legacy software. The R15 single-core result of 438 versus 315 (39% lead) confirms that this is not a fluke of one benchmark. For any workload where the primary bottleneck is a single execution thread, the i9-14900T is the superior part.

The i9-14900T also wins Cinebench R23 multi-core with a 24.3% lead. This is important because it shows that despite having a lower base clock of 1.10 GHz and a much lower TDP of 35 watts, the Intel part can still outperform the AMD chip in a heavily threaded rendering workload. This suggests that the i9-14900T's hybrid core arrangement, with its mix of performance and efficiency cores, is effective at scaling in certain multithreaded scenarios.

The AMD Ryzen 9 7900 wins everywhere else, and it wins by large margins in several key areas. The 56.8% lead in PassMark find prime numbers (380 vs 164) indicates a strong integer arithmetic capability. The 44% lead in extended instructions (42253 vs 23660) suggests the Zen 4 architecture handles advanced instruction sets more efficiently. The 27.7% lead in random string sorting (68474 vs 49484) points to better memory handling and cache efficiency, which is likely due to its 64 MB of shared L3 cache compared to the Intel's 36 MB.

For general multithreaded throughput, the Ryzen 9 7900 wins PassMark multi-thread by 25% (48347 vs 36239) and PassMark physics by 26.6% (3059 vs 2245). Data compression (24.5% lead) and encryption (22% lead) also favor AMD. The Ryzen 9 7900 is the better choice for scientific computing, data analysis, compression workloads, and any application that can use its 12 cores and 24 threads effectively. The only multithreaded test where Intel wins is Cinebench R23, which may favor Intel's specific core configuration.

Architecture Differences

The two processors represent fundamentally different design philosophies. The Intel Core i9-14900T is built on the Raptor Lake architecture, specifically Raptor Lake-R, and uses a 10 nm process node from Intel's own foundry. It uses a hybrid architecture with 24 cores and 32 threads, which includes both performance and efficiency cores. The die size is 257 mm². The AMD Ryzen 9 7900 uses the Zen 4 architecture, codenamed Raphael, and is built on a 5 nm process node from TSMC. It uses a monolithic 12-core, 24-thread design with a chiplet approach, as indicated by its die size of 2x 71 mm². The AMD part has 13,140 million transistors, while the Intel part has no transistor count listed in the data.

Cache configuration differs significantly. The Intel i9-14900T has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 36 MB of shared L3 cache. The AMD Ryzen 9 7900 has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and a much larger 64 MB of shared L3 cache. This larger L3 cache is likely a major factor in the AMD part's wins in data compression, random string sorting, and other memory-intensive workloads. The Intel part's higher per-core L1 and L2 cache sizes may help with its single-threaded dominance.

The integrated graphics differ as well. The Intel part uses UHD Graphics 770, while the AMD part uses Radeon Graphics. Both support ECC memory. The Intel part supports both DDR4 and DDR5 memory, while the AMD part supports only DDR5. The AMD part has a listed memory bandwidth of 83.2 GB/s, while the Intel part does not have a memory bandwidth figure in the data. PCIe support also differs, with Intel offering Gen 5 with 16 lanes (CPU only) and AMD offering Gen 5 with 24 lanes (CPU only). The Intel part has a locked multiplier, while the AMD part has an unlocked multiplier, meaning the Ryzen 9 7900 supports overclocking while the i9-14900T does not.

Specification Differences

The most obvious specification difference is core count: the Intel i9-14900T has 24 cores and 32 threads, while the AMD Ryzen 9 7900 has 12 cores and 24 threads. The base clock differs dramatically, with the Intel part running at 1.10 GHz and the AMD part at 3.70 GHz. The boost clock is closer, with the Intel part at 5.50 GHz and the AMD part at 5.40 GHz. The TDP is another major difference, with the Intel part rated at 35 watts and the AMD part at 65 watts.

The process node differs, with Intel using 10 nm and AMD using 5 nm. The foundry is Intel for the i9-14900T and TSMC for the Ryzen 9 7900. The die size is 257 mm² for Intel and 2x 71 mm² for AMD. The sockets are different, with Intel using Socket 1700 and AMD using Socket AM5. Memory support differs, with Intel supporting both DDR4 and DDR5 while AMD supports only DDR5. PCIe lanes differ, with Intel at 16 lanes and AMD at 24 lanes. The integrated graphics are UHD Graphics 770 for Intel and Radeon Graphics for AMD. The multiplier is locked on Intel and unlocked on AMD. The release dates differ, with the Intel part releasing later. The launch MSRP for the Intel i9-14900T is $549, and for the AMD Ryzen 9 7900 it is $429.

FAQ

Q: Which processor has higher single-threaded performance?

A: The Intel Core i9-14900T. It wins Cinebench R23 single-core by 121.2% (4348 vs 1966) and Cinebench R15 single-core by 39% (438 vs 315).

Q: Which processor wins in multithreaded workloads?

A: The AMD Ryzen 9 7900 wins most multithreaded tests, including PassMark multi-thread by 25% (48347 vs 36239) and PassMark physics by 26.6% (3059 vs 2245). The Intel i9-14900T wins Cinebench R23 multi-core by 24.3% (30803 vs 24776).

Q: How do the core counts compare?

A: The Intel Core i9-14900T has 24 cores and 32 threads, while the AMD Ryzen 9 7900 has 12 cores and 24 threads.

Q: What is the difference in cache size?

A: The Intel part has 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3. The AMD part has 64 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i9-14900T and the AMD Ryzen 9 7900 support ECC memory.

Q: Which processor has an unlocked multiplier?

A: The AMD Ryzen 9 7900 has an unlocked multiplier, meaning it supports overclocking. The Intel Core i9-14900T has a locked multiplier.