TurboVS
Intel Core Ultra 5 225
Intel Core Ultra 5 245

Intel Core Ultra 5 225 Intel Core Ultra 5 245

Overview

Welcome to our in-depth specification comparison between the Intel Core Ultra 5 225 and the Intel Core Ultra 5 245. Both desktop processors share the same LGA 1851 socket, 3 nm architecture, and DDR5 memory support, but they diverge in meaningful ways across core count, clock speeds, cache size, and multi-core performance. Whether you are building a capable everyday workstation or a more demanding productivity rig, understanding these differences will help you make the right choice.

Common Features

  • ✓ Both products are Desktop CPUs.
  • ✓ Both products use the LGA 1851 CPU socket.
  • ✓ Integrated graphics are available on both products.
  • ✓ Both products are manufactured with a 3 nm semiconductor size.
  • ✓ Both products have a maximum CPU temperature of 105 °C.
  • ✓ Both products support PCIe version 5.
  • ✓ Both products support 64-bit computing.
  • ✓ Neither product has an unlocked multiplier.
  • ✓ Both products use big.LITTLE technology.
  • ✓ Both products feature Turbo Boost version 2.
  • ✓ Both products share the same integrated GPU base clock speed of 300 MHz.
  • ✓ Both products support DirectX 12.
  • ✓ Both products support up to 4 displays.
  • ✓ Both products support OpenGL version 4.5.
  • ✓ Both products support OpenCL version 3.
  • ✓ Both products support a maximum RAM speed of 6400 MHz.
  • ✓ Both products use DDR5 memory.
  • ✓ Both products feature 2 memory channels.
  • ✓ Both products support a maximum memory amount of 192 GB.
  • ✓ Both products support the same instruction sets: MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2.
  • ✓ Both products have the NX bit feature.

Main Differences

  • • CPU speed is 6 x 3.3 & 4 x 2.7 GHz on Intel Core Ultra 5 225 and 6 x 3.5 & 8 x 3 GHz on Intel Core Ultra 5 245.
  • • CPU threads count is 10 on Intel Core Ultra 5 225 and 14 on Intel Core Ultra 5 245.
  • • Turbo clock speed is 4.9 GHz on Intel Core Ultra 5 225 and 5.1 GHz on Intel Core Ultra 5 245.
  • • L2 cache is 22 MB on Intel Core Ultra 5 225 and 26 MB on Intel Core Ultra 5 245.
  • • Clock multiplier is 33 on Intel Core Ultra 5 225 and 35 on Intel Core Ultra 5 245.
  • • PassMark result (multi-core) is 31044 on Intel Core Ultra 5 225 and 38809 on Intel Core Ultra 5 245.
  • • PassMark result (single-core) is 4471 on Intel Core Ultra 5 225 and 4475 on Intel Core Ultra 5 245.
  • • GPU turbo clock speed is 1800 MHz on Intel Core Ultra 5 225 and 1900 MHz on Intel Core Ultra 5 245.
  • • ECC memory support is available on Intel Core Ultra 5 245 but not available on Intel Core Ultra 5 225.
Specs Comparison
Intel Core Ultra 5 225

Intel Core Ultra 5 225

Intel Core Ultra 5 245

Intel Core Ultra 5 245

General info:
Type Desktop Desktop
CPU socket LGA 1851 LGA 1851
Has integrated graphics ✓ ✓
release date January 2025 January 2025
semiconductor size 3 nm 3 nm
CPU temperature 105 °C 105 °C
PCI Express (PCIe) version 5 5
Supports 64-bit ✓ ✓

At the foundational level, the Intel Core Ultra 5 225 and Intel Core Ultra 5 245 are virtually identical in their general specifications. Both are desktop processors built for the LGA 1851 socket, meaning they are drop-in compatible with the same motherboards — a significant practical advantage for upgraders or system builders evaluating one versus the other.

Both chips share the same 3 nm semiconductor process, the same PCIe 5.0 interface, integrated graphics support, 64-bit capability, and an identical 105 °C maximum operating temperature. The shared thermal ceiling means platform cooling requirements and TDP management strategies will be equivalent, so neither processor demands a more capable cooler based on general specs alone.

Based strictly on this spec group, these two processors are in a complete tie — there is no differentiator here that favors either chip. Any meaningful distinction between the Core Ultra 5 225 and 245 will emerge from their performance-specific specs, such as core counts, clock speeds, or cache — not from their general platform characteristics.

Performance:
CPU speed 6 x 3.3 & 4 x 2.7 GHz 6 x 3.5 & 8 x 3 GHz
CPU threads 10 threads 14 threads
turbo clock speed 4.9GHz 5.1GHz
Has an unlocked multiplier ✕ ✕
L2 cache 22 MB 26 MB
Uses big.LITTLE technology ✓ ✓
clock multiplier 33 35
Turbo Boost version 2 2

The Intel Core Ultra 5 225 and Intel Core Ultra 5 245 have several differences in their performance-related specifications. The Intel Core Ultra 5 225 features a CPU speed of 6 cores at 3.3 GHz and 4 cores at 2.7 GHz, while the Intel Core Ultra 5 245 has a higher CPU speed with 6 cores at 3.5 GHz and 8 cores at 3.0 GHz. This means that the Ultra 5 245 offers more cores overall, and slightly faster speeds for the first six cores.

When it comes to CPU threads, the Ultra 5 225 has 10 threads, whereas the Ultra 5 245 has 14 threads, making the Ultra 5 245 capable of handling more simultaneous tasks. Both processors feature a turbo clock speed with the Ultra 5 225 reaching 4.9 GHz and the Ultra 5 245 slightly surpassing that at 5.1 GHz, which indicates a modest boost in peak performance for the latter.

Other similarities include the use of big.LITTLE technology in both models, which optimizes power efficiency by using a mix of performance and efficiency cores. Both processors have the same Turbo Boost version (2) and the same multiplier of 33 for the Ultra 5 225 and 35 for the Ultra 5 245. Additionally, both processors share the same locked multiplier feature, meaning neither allows for easy overclocking. The L2 cache is also larger in the Ultra 5 245 at 26 MB compared to the Ultra 5 225’s 22 MB, giving the 245 a slight advantage in terms of cache capacity.

Benchmarks:
PassMark result 31044 38809
PassMark result (single) 4471 4475

The Intel Core Ultra 5 225 and Intel Core Ultra 5 245 differ in their PassMark benchmark results. The Ultra 5 225 has a PassMark result of 31044, while the Ultra 5 245 scores higher with a result of 38809. This indicates that the Ultra 5 245 offers a better overall performance in multi-threaded tasks as reflected in this score.

For single-threaded performance, both processors show very similar results, with the Ultra 5 225 scoring 4471 and the Ultra 5 245 slightly ahead with a score of 4475. The small difference in single-thread performance is negligible and indicates similar performance for single-core applications.

Overall, the Ultra 5 245 outperforms the Ultra 5 225 in the multi-threaded PassMark result, while the single-thread results are almost identical between the two models.

Integrated graphics:
GPU clock speed 300 MHz 300 MHz
GPU turbo 1800 MHz 1900 MHz
DirectX version DirectX 12 DirectX 12
supported displays 4 4
OpenGL version 4.5 4.5
OpenCL version 3 3

The Intel Core Ultra 5 225 and Intel Core Ultra 5 245 feature integrated graphics with very similar specifications. Both processors have a GPU clock speed of 300 MHz, and they both support a maximum of 4 displays, which is ideal for multi-monitor setups. Both also support DirectX 12, OpenGL 4.5, and OpenCL 3, ensuring compatibility with modern graphical applications and frameworks.

However, there is a slight difference in GPU turbo speed. The Ultra 5 225 has a GPU turbo speed of 1800 MHz, while the Ultra 5 245's turbo speed reaches 1900 MHz, offering a small boost in the turbo performance for the latter. Despite this, both processors feature identical base GPU clock speeds and software support, with no other notable differences in their integrated graphics capabilities.

Overall, the Intel Core Ultra 5 245 offers a marginally higher GPU turbo speed compared to the Ultra 5 225, but the two processors are quite similar in their integrated graphics specs.

Memory:
RAM speed (max) 6400 MHz 6400 MHz
DDR memory version 5 5
memory channels 2 2
maximum memory amount 192GB 192GB
Supports ECC memory ✕ ✓

The Intel Core Ultra 5 225 and Intel Core Ultra 5 245 share several key memory specifications. Both processors support a maximum RAM speed of 6400 MHz and are compatible with DDR5 memory. They also feature dual memory channels, which help with improved data transfer speeds and overall system performance. Additionally, both processors support a maximum memory amount of 192GB, providing ample memory capacity for demanding applications.

The main difference between the two models lies in their support for ECC (Error-Correcting Code) memory. The Ultra 5 225 does not support ECC memory, while the Ultra 5 245 includes support for it. ECC memory is useful for systems that require higher data integrity, such as servers or workstations, but it is not commonly needed for regular consumer desktops.

Overall, the memory specifications of both processors are largely identical, with the only distinction being the ECC memory support available on the Ultra 5 245.

Features:
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓ ✓

The Intel Core Ultra 5 225 and Intel Core Ultra 5 245 share identical features in terms of instruction sets and security features. Both processors support the same set of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, which are commonly used to accelerate various workloads and enhance performance in supported applications.

Additionally, both processors include the NX bit (No Execute bit) feature, which helps protect the system from certain types of malicious software by preventing the execution of code in specific areas of memory. This is a standard security feature found in both models.

In summary, the Ultra 5 225 and Ultra 5 245 have identical features in this group, offering the same instruction sets and security capabilities.

Comparison Summary & Verdict

After examining all available specifications, the two processors cater to slightly different needs. The Intel Core Ultra 5 245 holds a clear advantage in raw multi-core performance, offering 14 threads versus 10, a higher turbo clock speed of 5.1 GHz, a larger 26 MB L2 cache, and a substantially higher PassMark multi-core score of 38,809. It also adds ECC memory support and a faster GPU turbo clock, making it better suited for professional workloads and users who need greater headroom. The Intel Core Ultra 5 225, on the other hand, still delivers solid single-core performance nearly identical to its sibling, shares the same platform and memory capabilities, and may appeal to budget-conscious builders who do not require the extra threads or ECC support. Both chips are competent, but the 245 is the stronger all-round performer.

Intel Core Ultra 5 225
Buy Intel Core Ultra 5 225 if...

Choose the Intel Core Ultra 5 225 if you want a cost-effective desktop CPU on the LGA 1851 platform and your workloads do not require a high thread count or ECC memory support.

Intel Core Ultra 5 245
Buy Intel Core Ultra 5 245 if...

Choose the Intel Core Ultra 5 245 if you need stronger multi-core performance, more CPU threads, a larger L2 cache, and ECC memory support for professional or demanding productivity tasks.