AMD Ryzen 9 3900XT vs Intel Core i7-14701E Comparison

The recorded data paints an unusual picture: a 2020-era twelve-core Ryzen 9 3900XT winning thirteen of seventeen head-to-head tests against a 2024 eight-core Intel Core i7-14701E, yet losing decisively in every test that measures responsive single-thread speed. The AMD chip sits at the 84th percentile of all CPUs in the database with an average benchmark score of 33736, while the Intel part sits at the 83rd percentile with 33206, a near-statistical tie in aggregate that conceals sharply divergent strengths underneath.

FAQ

Q: Which CPU is faster overall?

A: By aggregate score the two are nearly identical: the Ryzen 9 3900XT averages 33736 versus 33206 for the Core i7-14701E. But the 3900XT wins 13 of 17 direct benchmark comparisons, so the raw-performance edge belongs to AMD in the majority of workloads.

Q: Which one is better for single-threaded tasks?

A: The Core i7-14701E, and by a wide margin. It scores 4305 in PassMark single-thread against 2742 for the 3900XT, a 36.3 percent advantage, consistent with its 5.40 GHz boost clock versus AMD's 4.70 GHz.

Q: Which one is better for multi-threaded workloads?

A: The 3900XT. Its 24 threads (versus 16 on the Intel chip) carry it to a 27688 score in Cinebench R23 multi-core against 22195, a 24.7 percent lead, and the same roughly 25 percent margin repeats across R15 and R20 multi-core and PassMark multithread.

Q: Do both CPUs support ECC memory?

A: No. The Core i7-14701E supports ECC; the Ryzen 9 3900XT does not. For workstation or embedded deployments requiring error-checked memory, that is a decisive difference.

Q: Do either of these chips include integrated graphics?

A: Only the Intel part. The i7-14701E ships with UHD Graphics 770, while the 3900XT has no integrated GPU and requires a discrete graphics card.

Q: Which platform has newer connectivity?

A: The Intel chip offers PCIe Gen 5 with 16 CPU lanes and supports both DDR4 and DDR5, while the AMD chip offers PCIe Gen 4 with 24 CPU lanes and DDR4 only, at a recorded 51.2 GB/s of memory bandwidth.

The Verdict

The data suggests these two processors answer different questions. The Ryzen 9 3900XT is a throughput machine: twelve cores, twenty-four threads, and a 64 MB L3 cache that translate into wins across nearly every sustained workload in the database. It wins rendering, compression, encryption, integer math, and string sorting by margins ranging from 21.6 to 92.7 percent. Users whose software scales with core count should pick it.

The Core i7-14701E is a responsiveness and efficiency play. Its 65 W TDP is far lower than the 3900XT's 105 W, it carries integrated UHD Graphics 770, it supports ECC, and it delivers a 5.40 GHz boost that produces a 36.3 percent single-thread victory. It also wins PassMark physics by 26 percent. For systems that need quick per-task execution, lower power draw, memory flexibility, or error-correcting memory, the Intel chip is the recorded-data choice.

The curious wrinkle: despite the 3900XT winning 13 of 17 tests, the two land one percentile point apart (84 versus 83) in the database. That implies the aggregation weights the Intel chip's single-thread and physics strengths heavily, and it matches the rival clusters: the 3900XT's nearest rivals include the AMD Ryzen 5 7645HX (33668, 0.2 percent away) and Intel Core i7-12800HX (33875, -0.4 percent), while the i7-14701E's cluster includes the AMD Ryzen 9 PRO 6950H (33201, 0 percent) and Intel Core i7-13650HX (33089, 0.4 percent).

Head-to-Head Benchmarks

Start with the pattern that dominates the record. Every Cinebench multi-core test lands within a hair of the same margin: R15 multi-core, 2790 to 2237 (24.7 percent for AMD); R20 multi-core, 11628 to 9321 (24.8 percent); R23 multi-core, 27688 to 22195 (24.7 percent). PassMark multithread repeats it exactly: 32575 to 26112, 24.8 percent. That four-test consistency, all within a tenth of a point of each other, suggests the twelve-core/twenty-four-thread configuration delivers a stable structural advantage whenever the workload saturates all threads.

The PassMark subsystem tests show where that advantage explodes. Data encryption is the single biggest gap in the record: 28634 for AMD against 14862 for Intel, a 92.7 percent lead. Random string sorting goes to AMD 48327 to 29158, a 65.7 percent gap. Data compression: 452328 to 282939, 59.9 percent. Extended instructions: 28586 to 18528, 54.3 percent. Integer math favors AMD 99722 to 81325 (22.6 percent), and prime finding 214 to 176 (21.6 percent).

Now the counterweight. PassMark single-thread is the Intel chip's showcase: 4305 against 2742, a 36.3 percent win that exactly mirrors the single-thread result listed twice in the database. PassMark physics also goes to Intel, 2399 to 1776, a 26 percent advantage. And in a genuinely odd result given Intel's clock advantage, floating point math goes to the i7-14701E by a comparatively narrow 61873 to 58513, 5.4 percent, one of only two PassMark tests where AMD trails.

Perhaps the strangest data point: Cinebench single-core. The 3900XT wins R15 single-core 393 to 315 (24.8 percent), R20 single-core 1641 to 1315 (24.8 percent), and R23 single-core 3909 to 3133 (24.8 percent), all despite losing PassMark single-thread by 36.3 percent. Identical margins across three Cinebench generations and a triple-digit reversal in PassMark: the data implies the two suites reward different characteristics, and any single-thread judgment depends heavily on which workload you trust.

Specification Differences

• Cores and threads: 3900XT has 12 cores and 24 threads; i7-14701E has 8 cores and 16 threads.
• Clocks: 3900XT runs a 3.90 GHz base and 4.70 GHz boost; the i7-14701E runs a 2.60 GHz base and 5.40 GHz boost, trading base frequency for peak boost.
• TDP: 105 W for AMD versus 65 W for Intel.
• Socket and platform: AMD Socket AM4 versus Intel Socket 1700.
• Memory: DDR4 only on the 3900XT; DDR4 and DDR5 on the i7-14701E. The 3900XT records 51.2 GB/s bandwidth on a dual-channel bus; the Intel chip has the same dual-channel bus with no recorded bandwidth figure.
• ECC: supported on Intel, not on AMD.
• PCIe: Gen 4 with 24 CPU lanes on AMD versus Gen 5 with 16 CPU lanes on Intel.
• Integrated graphics: UHD Graphics 770 on Intel; none on AMD.
• Cache: 64 KB L1 and 512 KB L2 per core with 64 MB L3 on the 3900XT; 80 KB L1 and 2 MB L2 per core with 33 MB shared L3 on the i7-14701E.
• Overclocking: the 3900XT has an unlocked multiplier; the i7-14701E does not.
• Launch MSRP: the 3900XT launched at $499; no launch MSRP is recorded for the i7-14701E.

Architecture Differences

The Ryzen 9 3900XT is a Zen 2 design, codename Matisse 2, built on TSMC's 7 nm process with two dies of 74 mm² each and 7,600 million transistors. That chiplet layout explains both its cache story and its throughput: a full 64 MB of L3 cache feeds twelve physical cores. It fits the AM4 socket and PCIe Gen 4.

The Core i7-14701E is Raptor Lake, codename Raptor Lake-R, manufactured by Intel on its 10 nm process as a single 257 mm² die. Its per-core cache is structured differently, with larger L1 and L2 allocations per core (80 KB and 2 MB) but a smaller 33 MB shared L3, and its high-frequency boost behavior drives the single-thread results recorded above. No transistor count is recorded for it.

Feature differences follow directly from the platforms. The Intel chip pairs DDR5 support with PCIe Gen 5 and adds ECC plus integrated graphics, a combination oriented toward compact and reliability-sensitive systems. The AMD chip doubles down on lane count (24 CPU lanes) and cache capacity, an orientation toward add-in-heavy, throughput-oriented builds. The 3900XT's unlocked multiplier leaves tuning headroom; the locked Intel chip does not.

Where Each One Wins

The Ryzen 9 3900XT wins for sustained multi-threaded throughput. Every all-core test favors it by roughly a quarter: Cinebench R23 multi-core by 24.7 percent, PassMark multithread by 24.8 percent. It also dominates memory-and-string-sensitive subsystems, with leads of 92.7 percent in encryption, 65.7 percent in string sorting, 59.9 percent in compression, 54.3 percent in extended instructions, 22.6 percent in integer math, and 21.6 percent in prime number finding. Rendering, encoding, archiving, and batch data processing are its recorded territory. Curiously, it also takes every Cinebench single-core test by 24.8 percent, so even lightly threaded rendering history in the database leans AMD.

The Core i7-14701E wins for per-task responsiveness and efficiency-sensitive builds. Its 36.3 percent single-thread lead in PassMark is the largest single-test margin in the entire comparison, and its 26 percent physics win reinforces the quick-burst profile. With a 65 W TDP, ECC support, DDR5 compatibility, PCIe Gen 5, and UHD Graphics 770 built in, the data describes a compact, lower-power system that still executes individual tasks faster than the larger AMD chip.

The final question the data raises: is 24.7 percent more multi-core throughput worth 36.3 percent less single-thread speed plus the loss of ECC, Gen 5, and integrated graphics? For thread-heavy workloads the 3900XT's thirteen wins answer yes. For everything else, the i7-14701E's four wins are the ones that matter most often.