AMD Ryzen 7 7700X3D vs Intel Core Ultra 5 338H Comparison

FAQ

Q: What are the core and thread counts of the AMD Ryzen 7 7700X3D and Intel Core Ultra 5 338H?

A: The AMD Ryzen 7 7700X3D has 8 cores and 16 threads, while the Intel Core Ultra 5 338H has 12 cores and 12 threads. The Intel part has more physical cores, but the AMD part has more threads due to simultaneous multithreading.

Q: How do the clock speeds compare between the two processors?

A: The AMD Ryzen 7 7700X3D has a base clock of 4.00 GHz and a boost clock of 4.50 GHz. The Intel Core Ultra 5 338H has a base clock of 1.90 GHz and a higher boost clock of 4.70 GHz. The Intel chip boosts higher, but the AMD chip runs at a much higher base frequency.

Q: What are the cache configurations for each processor?

A: The AMD Ryzen 7 7700X3D features 64 KB of L1 cache per core, 1 MB of L2 cache per core, and a large 96 MB shared L3 cache. The Intel Core Ultra 5 338H has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and a smaller 18 MB shared L3 cache.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 7 7700X3D supports ECC memory, while the Intel Core Ultra 5 338H does not. This makes the AMD processor suitable for error-sensitive workloads.

Q: What is the market segment and socket type for each chip?

A: The AMD Ryzen 7 7700X3D is a desktop processor using AMD Socket AM5, while the Intel Core Ultra 5 338H is a mobile processor using Intel BGA 2540. The AMD chip is designed for desktop systems, whereas the Intel chip is built for mobile platforms.

Q: How does the Intel Core Ultra 5 338H rank among all CPUs?

A: The Intel Core Ultra 5 338H ranks in the 84th percentile among all CPUs. The AMD Ryzen 7 7700X3D ranks in the 50th percentile, though its benchmark scores are not recorded in the database.

Architecture Differences

The AMD Ryzen 7 7700X3D belongs to the 7000 series and uses the Raphael codename with a Zen 4 (Raphael) generation. It is built on a 5 nm process at TSMC, containing 11,270 million transistors on a 71 mm² die. The Intel Core Ultra 5 338H is part of the Core Ultra Series 3, uses the Panther Lake architecture with a Panther Lake-H generation, and is fabricated on a 3 nm process at Intel. The Intel chip has no recorded transistor count or die size in the database.

The AMD processor supports DDR5 memory with dual-channel configuration and delivers 83.2 GB/s of memory bandwidth. The Intel processor supports LPDDR5X memory with dual-channel configuration and provides a higher 136.5 GB/s of memory bandwidth. The AMD chip includes ECC memory support, while the Intel chip does not.

PCIe connectivity differs substantially. The AMD Ryzen 7 7700X3D provides Gen 5 with 24 lanes from the CPU, while the Intel Core Ultra 5 338H provides Gen 5 with only 4 lanes from the CPU. This reflects the desktop versus mobile positioning of the two parts.

Integrated graphics also differ. The AMD processor uses Radeon Graphics, while the Intel processor uses Arc B370. The Intel integrated solution is positioned as a more advanced graphics option for a mobile chip.

Cache topology shows major differences. The AMD chip uses 64 KB L1 per core, 1 MB L2 per core, and a shared 96 MB L3 cache. The Intel chip uses 192 KB L1 per core, 2.5 MB L2 per core, and a shared 18 MB L3 cache. The larger L3 cache on the AMD part is a defining characteristic, while the Intel part has larger per-core L1 and L2 allocations.

The AMD processor has a TDP of 120 watts, while the Intel processor has a TDP of 25 watts. This reflects the desktop power envelope of the AMD chip versus the mobile efficiency focus of the Intel chip. The AMD part is unlocked in terms of multiplier? No, both processors have locked multipliers according to the database.

The release dates differ as well. The AMD Ryzen 7 7700X3D was released on 2026-05-30, while the Intel Core Ultra 5 338H was released on 2026-01-04. The Intel chip came to market earlier. The AMD chip has a launch MSRP of $329, while the Intel chip has no recorded launch MSRP.

Head-to-Head Benchmarks

The database records benchmark scores only for the Intel Core Ultra 5 338H. The AMD Ryzen 7 7700X3D has no recorded benchmark scores in the database, and there are no head-to-head benchmark entries. The wins counters show 0 for both processors.

For the Intel Core Ultra 5 338H, the recorded data shows strong performance across multiple test suites. In Cinebench R15, the Intel chip scores 2504 in multicore and 305 in singlecore. In Cinebench R20, it scores 10213 in multicore and 1441 in singlecore. In Cinebench R23, it scores 16331 in multicore and 2044 in singlecore.

PassMark tests reveal specific strengths. The Intel chip scores 276539 in data compression, 21367 in data encryption, and 23906 in extended instructions. In prime number finding, it scores 304. Floating point math scores 84067, while integer math scores 64934. Multithread performance scores 28717, physics scores 2697, and random string sorting scores 34082. Single thread performance scores 4180.

The Intel Core Ultra 5 338H has an average benchmark score of 33989 and ranks in the 84th percentile among all CPUs. Its nearest rivals in the database are the Intel Core Ultra 7 165H with an average score of 34083 and a delta of -0.3%, the Intel Core i7-12800HX with an average score of 33875 and a delta of 0.3%, the Intel Xeon 6353P with an average score of 33844 and a delta of 0.4%, and the AMD EPYC 4244P with an average score of 34220 and a delta of -0.7%.

The recorded data indicates the Intel Core Ultra 5 338H sits within a narrow performance band around its rivals. It is 0.3% behind the Core Ultra 7 165H and 0.7% behind the EPYC 4244P, while being 0.3% ahead of the Core i7-12800HX and 0.4% ahead of the Xeon 6353P. These deltas are small, showing close competition in the mobile processor space.

Since no benchmark scores exist for the AMD Ryzen 7 7700X3D, a direct numerical comparison between the two processors cannot be made from the database. The analysis must rely on architectural and specification differences rather than measured performance deltas.

Specification Differences

The two processors differ in several key specification fields. The AMD Ryzen 7 7700X3D has 8 cores and 16 threads, while the Intel Core Ultra 5 338H has 12 cores and 12 threads. The AMD base clock is 4.00 GHz versus 1.90 GHz for Intel. The AMD boost clock is 4.50 GHz versus 4.70 GHz for Intel.

TDP differs significantly: 120 watts for AMD versus 25 watts for Intel. The socket types are different: AMD Socket AM5 for the Ryzen chip and Intel BGA 2540 for the Core Ultra chip. The AMD processor uses the Raphael codename with Zen 4 architecture, while the Intel processor uses Panther Lake architecture.

Process nodes differ: 5 nm at TSMC for AMD versus 3 nm at Intel for the Core Ultra chip. The AMD chip has 11,270 million transistors on a 71 mm² die, while the Intel chip has no recorded transistor count or die size.

Cache configurations differ in every tier. AMD uses 64 KB L1 per core, 1 MB L2 per core, and 96 MB shared L3. Intel uses 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3.

Memory support differs: DDR5 for AMD versus LPDDR5X for Intel. Memory bandwidth is 83.2 GB/s for AMD versus 136.5 GB/s for Intel. ECC support is present on AMD but absent on Intel.

PCIe lanes differ: Gen 5 with 24 lanes for AMD versus Gen 5 with 4 lanes for Intel. Integrated graphics differ: Radeon Graphics for AMD versus Arc B370 for Intel.

Market segments differ: Desktop for AMD versus Mobile for Intel. The AMD processor has a launch MSRP of $329, while the Intel processor has no recorded launch MSRP. The AMD chip was released on 2026-05-30, while the Intel chip was released on 2026-01-04.

The Verdict

The data shows two processors aimed at different market segments. The AMD Ryzen 7 7700X3D is a desktop processor with a 120 watt TDP, 8 cores, 16 threads, and a 96 MB L3 cache. The Intel Core Ultra 5 338H is a mobile processor with a 25 watt TDP, 12 cores, 12 threads, and an 18 MB L3 cache.

For users building a desktop system, the AMD Ryzen 7 7700X3D offers a large L3 cache, ECC memory support, 24 PCIe Gen 5 lanes, and a higher base clock. The processor is designed for socket AM5 and supports DDR5 memory. Its 120 watt TDP indicates a higher power envelope suited for desktop cooling solutions.

For users seeking a mobile processor, the Intel Core Ultra 5 338H provides a higher boost clock of 4.70 GHz, more physical cores, higher memory bandwidth at 136.5 GB/s, and a 3 nm process node. The 25 watt TDP makes it suitable for power-constrained mobile devices. Its benchmark data shows it ranks in the 84th percentile among all CPUs, with an average score of 33989.

The recorded benchmark data only covers the Intel processor. The AMD processor has no recorded scores, so a direct performance comparison cannot be established from the database. The Intel chip's nearest rivals include the Core Ultra 7 165H, Core i7-12800HX, Xeon 6353P, and EPYC 4244P, all within a 1% performance band.

Users should select the AMD Ryzen 7 7700X3D for desktop builds where the large L3 cache, ECC support, and extensive PCIe lanes are priorities. Users should select the Intel Core Ultra 5 338H for mobile systems where the low TDP, higher memory bandwidth, and measured benchmark performance are priorities.

Where Each One Wins

The AMD Ryzen 7 7700X3D wins in scenarios that favor large cache capacity, ECC memory, and desktop expansion. The 96 MB shared L3 cache is substantially larger than the Intel chip's 18 MB L3 cache, which can benefit workloads that repeatedly access a large working set. The ECC memory support allows error correction in memory-sensitive applications. The 24 PCIe Gen 5 lanes provide extensive connectivity for desktop components such as graphics cards and storage devices. The higher base clock of 4.00 GHz indicates strong sustained throughput at lower boost levels.

The Intel Core Ultra 5 338H wins in scenarios that favor physical core count, higher boost clocks, memory bandwidth, and power efficiency. The 12 physical cores exceed the AMD chip's 8 cores, which benefits workloads that scale with core count. The 4.70 GHz boost clock is higher than the AMD chip's 4.50 GHz boost clock. The 136.5 GB/s memory bandwidth exceeds the AMD chip's 83.2 GB/s, which benefits memory-intensive operations. The 25 watt TDP is considerably lower than the 120 watt TDP, making the Intel chip more suitable for battery-powered devices.

The Intel processor also wins in measured benchmark performance, as the database contains its scores across Cinebench and PassMark tests. The 84th percentile ranking among all CPUs confirms its competitive position. The AMD processor has no recorded benchmark scores, so its measured performance cannot be confirmed from the database.

The AMD processor wins in desktop-oriented features: socket AM5, DDR5 support, ECC memory, 24 PCIe lanes, and a 120 watt power envelope. The Intel processor wins in mobile-oriented features: BGA 2540 socket, LPDDR5X support, no ECC, 4 PCIe lanes, and a 25 watt power envelope. The choice depends on the target platform and workload priorities.