AMD Ryzen Threadripper Pro 9945WX VS Intel Core Ultra 9 285

Both the AMD Ryzen Threadripper Pro 9945WX and the Intel Core Ultra 9 285 are desktop-class processors built on modern process nodes, supporting PCIe 5.0 and 64-bit computing — so at a foundational level, they share a contemporary platform. The most immediately practical difference in this group is that the Core Ultra 9 285 includes integrated graphics, while the Threadripper Pro 9945WX does not. For workstation builders, this matters: the Intel chip can drive a display without a discrete GPU, which is useful for headless server setups, troubleshooting scenarios, or cost-sensitive configurations, whereas the AMD chip mandates a dedicated graphics card.

On the manufacturing side, the Core Ultra 9 285 edges ahead with a 3 nm process node versus the Threadripper Pro's 4 nm, a gap that typically translates to modest improvements in power efficiency and transistor density. However, the thermal picture partially offsets this: the Intel chip carries a higher maximum CPU temperature of 105 °C compared to AMD's 95 °C, meaning the Core Ultra 9 285 operates closer to its thermal ceiling and may demand more robust cooling to sustain peak performance safely.

In summary, neither chip dominates this category outright. The Core Ultra 9 285 holds a tangible edge with its integrated graphics and slightly newer process node, making it more self-contained out of the box. The Threadripper Pro 9945WX counters with a lower thermal ceiling, which may translate to more thermal headroom under sustained heavy loads — a meaningful consideration in demanding workstation environments where cooling margin is critical.

The AMD Ryzen Threadripper Pro 9945WX and Intel Core Ultra 9 285 have different configurations when it comes to performance specifications. The Ryzen 9945WX has a CPU speed of 12 cores running at 4.7 GHz each, while the Intel Core Ultra 9 285 has a more complex setup with 8 cores at 2.5 GHz and 16 cores at 1.9 GHz. This difference in core configuration reflects different architectural approaches for handling tasks.

Both processors feature 24 threads, so they can handle multitasking efficiently. The Ryzen 9945WX can boost its turbo clock speed up to 5.4 GHz, while the Intel Core Ultra 9 285 slightly edges out with a turbo clock speed of 5.6 GHz. However, the Ryzen has an unlocked multiplier, enabling more flexibility for overclocking, while the Intel processor does not have this feature.

When it comes to cache, the Ryzen 9945WX has an L2 cache of 12 MB, which is significantly smaller than the Intel Core Ultra 9 285’s L2 cache of 40 MB. Additionally, the Ryzen processor does not utilize big.LITTLE technology, while the Intel Core Ultra 9 285 does, which helps optimize power efficiency by using a mix of high-performance and energy-efficient cores. The Ryzen has a clock multiplier of 47, while the Intel's is 25.

The AMD Ryzen Threadripper Pro 9945WX and Intel Core Ultra 9 285 both support high-speed DDR5 memory, with a maximum RAM speed of 6400 MHz, so they offer similar performance in terms of memory speed. However, the two processors differ significantly in memory channels and maximum memory capacity. The Ryzen 9945WX supports 8 memory channels, while the Intel Core Ultra 9 285 only supports 2 memory channels, which can affect bandwidth and overall memory performance in high-demand tasks.

In terms of memory capacity, the Ryzen 9945WX can support up to 2000 GB of memory, which is far greater than the Intel Core Ultra 9 285’s maximum of 192 GB. This difference in capacity makes the Ryzen processor more suitable for workloads requiring large amounts of memory, such as heavy-duty professional applications.

Both processors support ECC memory (Error-Correcting Code), which helps improve data integrity by detecting and correcting memory errors, ensuring more stable performance, particularly in mission-critical environments.

The AMD Ryzen Threadripper Pro 9945WX and Intel Core Ultra 9 285 share the same instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, meaning both processors support a broad range of modern instruction sets for various computational tasks.

Both processors also include the NX bit feature, which helps protect against certain types of malicious attacks by preventing the execution of code in certain areas of memory.

In terms of features, both processors are identical with respect to the listed instruction sets and the inclusion of the NX bit, so there is no difference between the two in this regard.