AMD Ryzen 7 5800X vs Intel Core i5-14500HX vs Intel Core i7-14650HX

AMD Ryzen 7 5800X

The AMD Ryzen 7 5800X is an 8-core desktop processor with Simultaneous Multithreading (SMT), which allows it to process 16 threads simultaneously. With its launch on 08.10.2020, it is the fastest 8-core processor from AMD. The second fastest 8-core processor will be the AMD Ryzen 7 3800XT, followed by the more economical AMD Ryzen 7 3700X, also with 8 cores and 16 threads.

The Ryzen 7 5800X clocks with a base clock of 3.8 GHz and reaches up to 4.7 GHz on one core in turbo mode. When all 8 cores are utilized, the AMD Ryzen 7 5800X, like the AMD Ryzen 9 5900X, achieves up to 4.5 GHz.

At first glance, the internal structure of the processor has not changed fundamentally. The CCX structure has changed somewhat compared to Zen2, because now a CCX consists of up to 8-CPU cores. So each individual core can access the complete L3 cache (32 MByte). Furthermore the CCX modules are connected to each other via the same I/O die, which we already know from Zen2. According to AMD, the Infinity-Fabric should now reach clock rates of up to 2Ghz, which in turn allows a RAM clock of 4.000 MHz without performance loss.

Performance

The average 5800X in our database is in the same league as the Core i9-10900K and also the Core i7-12700F, as far as multi-thread benchmark scores are concerned.

In games, AMD's Ryzen 7 5800X can convince with its significantly improved IPC and even put Intel in its place. With the AMD Ryzen 7 5800X, gamers are well prepared for the future as simultaneous streaming is no problem with the new Ryzen 7 5800X. Semi-professional content creators, who need even more power, can choose a Ryzen 9 5900X or the Ryzen 9 5950X on the shelf.

Power consumption

The Ryzen 7 has a default TDP (also known as the long-term power limit) of 105 W. This applies as long as the CPU runs at stock clock speeds.

Ryzen 7 5800X is built with TSMC's 7 nm process; as rumors have it, the I/O die is manufactured separately on the 12 nm Global Foundries process.

Intel Core i5-14500HX

The Intel Core i5-14500HX is a high-end CPU from the Raptor-Lake-HX Refresh series (RPL-H). The CPU offers all 6 performance cores (P-cores, Golden Cove or Raptor Cove architecture) and 8 efficiency cores (E-cores, Gracemont architecture). The P-cores support hyperthreading (therefore 20 threads together) and clock from 2.4 to 4.9 GHz (single-core turbo). The E-cores clock from 1.9 - 3.7 GHz and should offer comparable performance to old Skylake cores (e.g. i7-6920HQ).

Performance

Thanks to the higher clock rates of the Rocket Lake series, the i5-14500HX can reach the level of the old Core i9-12900H and is therefore a very fast mobile CPU that is ideal for all areas of application.

Graphics unit

Like its predecessor, Intel integrates an Intel Xe-based graphics unit. In the 14500HX, all 96 EUs are activated and clock at up to 1.55 GHz.

Features

Like Alder-Lake-H, Raptor-Lake-H has partially integrated WiFi 6E and Thunderbolt 4 (4x). The integrated memory controller now supports faster DDR5-5200 memory. The integrated Gaussian and Neural Accelerator (GNA) is still installed in version 3.0. The Quick Sync 8 media engine is the same as in Rocket Lake and supports MPEG-2, AVC, VC-1 decode, JPEG, VP8 decode, VP9, HEVC and AV1 decode. The chip supports PCIe 5.0 x8 for a dGPU and two PCIe 4.0 x4 for SSDs. The PCH also offers PCIe Gen3 x12.

Power consumption

The Intel Core i5-14500HX is specified with 55 watts TDP (PL2 157 watts). The processor continues to be manufactured using the improved Intel 7 process (10 nm SuperFin).

Intel Core i7-14650HX

The Intel Core i7-14650HX is a high-end CPU based on the new Raptor Lake architecture for large and heavy notebooks. The CPU was introduced at the beginning of 2024 and is similar to the older Core i7-13700HX except for slightly higher CPU clock rates (max 200 MHz).

The total of 24 threads are divided into P-cores and E-cores, which we already know from Alder-Lake. The 13700HX offers 8 performance cores (P-cores) with hyperthreading and 8 efficiency cores (E-cores) without hyperthreading. A total of 20 threads are therefore supported. The P-cores clock from 2.2 to 5.2 GHz (single core) or 4.5 GHz (all cores) and the E-cores from 1.6 to 3.7 GHz. The integrated memory controller supports a maximum of DDR5 with 4800 MHz (and not 5600 MHz like the i9 HX models).

Compared to Alder Lake, the new Raptor Lake architecture offers improved P-cores (Raptor Cove architecture with more cache), more E-cores (same Gracemont architecture) and higher clock rates thanks to the improved Intel 7 process. Furthermore, Intel now supports faster DDR5 main memory in the top models (up to 5600 MHz in the i9).

The performance should be slightly above the older Core i7-13700HX (with the same TDP settings and cooling). This makes the CPU ideal for demanding tasks and games.

The 14650HX continues to be manufactured using Intel's improved 10nm FinFET process (Intel 7 process) and is specified with 55 watts of base power and 157 watts of turbo power.