AMD Ryzen 7 7800X3D vs Intel Core i5-14400F Comparison

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i5-14400F has 10 cores and 16 threads. The AMD Ryzen 7 7800X3D has 8 cores and 16 threads. Both support 16 threads, but Intel fields two additional physical cores.

Q: What are the boost clock speeds for each chip?

A: The Intel Core i5-14400F boosts to 4.70 GHz, while the AMD Ryzen 7 7800X3D boosts to 5.00 GHz. The AMD part also has a higher base clock at 4.20 GHz versus 2.50 GHz for Intel.

Q: How does the cache configuration differ?

A: The AMD Ryzen 7 7800X3D features a 96 MB shared L3 cache, compared to 20 MB shared L3 on the Intel Core i5-14400F. Per-core L1 and L2 caches are larger on the Intel chip: 80 KB L1 and 1.25 MB L2 per core versus 64 KB L1 and 1 MB L2 per core on AMD.

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 7 7800X3D has an average benchmark score of 33079, while the Intel Core i5-14400F scores 32279. Both sit at the 83rd percentile among all CPUs.

Q: What memory types does each CPU support?

A: The Intel Core i5-14400F supports both DDR4 and DDR5 memory. The AMD Ryzen 7 7800X3D supports DDR5 only, with a rated memory bandwidth of 83.2 GB/s.

Q: Do both processors include integrated graphics?

A: No. The Intel Core i5-14400F has no integrated graphics (N/A). The AMD Ryzen 7 7800X3D includes Radeon Graphics.

Architecture Differences

The two processors come from fundamentally different design schools. Intel's Core i5-14400F uses Raptor Lake architecture, built on a 10 nm process at Intel's own foundry. AMD's Ryzen 7 7800X3D is a Zen 4 part, fabricated on a 5 nm process at TSMC. The process advantage shows in the physical dimensions: AMD's die measures 71 mm² with 11,270 million transistors, while Intel's die is 215 mm². That is a substantial size gap, and it reflects the different transistor densities and design approaches.

Core counts differ as well. The Intel part offers 10 cores and 16 threads, an arrangement that relies on a mix of performance and efficiency cores. The AMD part has 8 cores and 16 threads, all based on the Zen 4 architecture. Clock behavior also separates them. Intel's base clock is 2.50 GHz with a 4.70 GHz boost. AMD's base clock is 4.20 GHz and the boost reaches 5.00 GHz. The AMD chip runs hotter from a TDP standpoint, rated at 120 W versus 65 W for Intel.

Cache is where AMD makes its biggest architectural statement. The Ryzen 7 7800X3D carries 96 MB of shared L3 cache, a massive pool compared to Intel's 20 MB shared L3. Per-core cache favors Intel: 80 KB L1 and 1.25 MB L2 per core versus 64 KB L1 and 1 MB L2 per core on AMD. But the L3 delta is so large that it dominates the cache picture. This is the signature feature of the X3D line, and it shows up in several benchmark categories.

Platform support also diverges. Intel uses Socket 1700, supports DDR4 and DDR5, and offers Gen 5 PCIe with 16 CPU lanes. AMD uses Socket AM5, supports DDR5 only, and provides Gen 5 PCIe with 24 CPU lanes. Both support ECC memory. Intel's memory bus is dual-channel, as is AMD's, but only AMD lists a specific bandwidth figure: 83.2 GB/s. The Intel part has no integrated graphics; AMD includes Radeon Graphics on the die. Neither CPU has an unlocked multiplier, so overclocking flexibility is limited on both sides.

Release timing differs by roughly a year. AMD launched the Ryzen 7 7800X3D in January 2023. Intel's Core i5-14400F arrived in January 2024. Both remain active in production.

Head-to-Head Benchmarks

The recorded benchmarks split sharply between the two chips, and the pattern is not a simple one. Intel wins in some multi-core rendering tests while AMD dominates in most other categories. The largest single margin goes to Intel in Cinebench R23 single-core, where the i5-14400F scores 3055 against 1713 for the Ryzen 7 7800X3D, a 78.3% advantage. That is an enormous gap in a single-threaded workload and suggests a major difference in how the two chips handle lightly threaded rendering tasks.

Intel also wins Cinebench R23 multi-core, scoring 21645 versus 16817 for AMD, a 28.7% lead. The i5-14400F takes Cinebench R15 single-core as well, 307 to 281.5, a 9.1% margin. Intel's fourth win comes in PassMark floating point math, though it is narrow: 61319 versus 61187, a 0.2% edge. Those four wins represent the entirety of Intel's head-to-head victories.

AMD's wins are far more numerous, 13 in total, and several are decisive. PassMark physics shows the biggest gap: AMD scores 3522 against Intel's 1523, a 56.8% advantage. PassMark find prime numbers is even more lopsided in relative terms, with AMD at 324 versus Intel's 86, a 73.5% delta. PassMark extended instructions gives AMD a 31.6% lead, 29166 to 19937. PassMark random string sorting goes to AMD by 28%, 45418 to 32680. PassMark multi-thread favors AMD by 25.7%, 34293 to 25470. GeekBench multi-core goes to AMD by 27.8%, 15610 to 11268. Cinebench R15 multi-core favors AMD by 24.2%, 2878.5 to 2181. PassMark data encryption shows AMD ahead by 24.2%, 22346 to 16949. PassMark integer math gives AMD a 21.3% lead, 103639 to 81524. PassMark data compression favors AMD by 18%, 384669 to 315521. GeekBench single-core goes to AMD by 15.2%, 2426 to 2058. PassMark single-thread is close, AMD ahead by 1.5%, 3759 to 3701, and the duplicate PassMark singlethread result matches at 1.5%.

The overall win count is 13 for AMD and 4 for Intel. Average benchmark scores reinforce the picture: AMD at 33079, Intel at 32279, a difference of roughly 800 points. Both chips sit at the 83rd percentile globally, meaning they occupy the same tier in the overall CPU landscape, but the AMD part holds a consistent edge in the measured tests.

The Verdict

The data points to a clear split in workload suitability. The Intel Core i5-14400F is the better choice for Cinebench R23 multi-core and single-core rendering, where it leads by 28.7% and 78.3% respectively. It also takes the Cinebench R15 single-core test and edges out AMD in floating point math. For users whose primary workloads are rendering tasks that resemble Cinebench, the Intel chip has a measurable advantage.

The AMD Ryzen 7 7800X3D dominates nearly everywhere else. Its 56.8% lead in PassMark physics, 73.5% lead in prime number finding, and 31.6% lead in extended instructions point to strong performance in compute-heavy and scientific workloads. The 25.7% multi-thread lead and 27.8% GeekBench multi-core lead suggest broader general-purpose multi-threaded strength. The 18% data compression advantage and 24.2% encryption advantage indicate productivity tasks also favor AMD. Even single-threaded PassMark goes to AMD, though by just 1.5%.

The verdict depends on the workload. Rendering-focused users should lean toward the Intel Core i5-14400F. Users running physics simulations, encryption, compression, integer math, or varied multi-threaded applications should choose the AMD Ryzen 7 7800X3D. Both chips sit at the 83rd percentile, so neither is a weak option. The AMD part's average benchmark score of 33079 is higher than Intel's 32279, which gives it the overall edge in the aggregate. But the Intel chip's Cinebench R23 results are strong enough that it remains the pick for that specific rendering workload.

Specification Differences

The two CPUs differ across nearly every major specification. The Intel Core i5-14400F has 10 cores and 16 threads; the AMD Ryzen 7 7800X3D has 8 cores and 16 threads. Base clocks are 2.50 GHz for Intel and 4.20 GHz for AMD. Boost clocks are 4.70 GHz for Intel and 5.00 GHz for AMD. TDP is 65 W for Intel and 120 W for AMD.

Sockets differ: Intel uses Socket 1700, AMD uses Socket AM5. Architecture is Raptor Lake for Intel versus Zen 4 for AMD. Process nodes are 10 nm for Intel and 5 nm for AMD. Foundries are Intel for the i5-14400F and TSMC for the Ryzen 7 7800X3D. Die size is 215 mm² for Intel and 71 mm² for AMD. AMD lists 11,270 million transistors; Intel does not provide a transistor count.

Cache configurations differ sharply. Intel has 80 KB L1 per core, 1.25 MB L2 per core, and 20 MB shared L3. AMD has 64 KB L1 per core, 1 MB L2 per core, and 96 MB shared L3. Memory support: Intel accepts DDR4 and DDR5, AMD accepts DDR5 only. Both are dual-channel. AMD lists 83.2 GB/s memory bandwidth; Intel does not list a bandwidth figure. Both support ECC memory.

PCIe lanes differ: Intel offers Gen 5 with 16 CPU lanes, AMD offers Gen 5 with 24 CPU lanes. Integrated graphics are absent on the Intel chip, while AMD includes Radeon Graphics. Both have locked multipliers. Release dates are January 2024 for Intel and January 2023 for AMD. The launch MSRP is $196 for the Intel Core i5-14400F and $449 for the AMD Ryzen 7 7800X3D.