TurboVS
Intel Core Ultra 5 245
Intel Core Ultra 7 265

Intel Core Ultra 5 245 Intel Core Ultra 7 265

Overview

Welcome to our detailed specification comparison between the Intel Core Ultra 5 245 and the Intel Core Ultra 7 265. Both processors share the same LGA 1851 platform, DDR5 memory support, and 3 nm manufacturing process, but they diverge meaningfully when it comes to core and thread counts, cache size, and overall benchmark performance. Read on to discover which CPU better suits your computing needs.

Common Features

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

Main Differences

  • • CPU speed is 6 x 3.5 & 8 x 3 GHz on Intel Core Ultra 5 245 and 8 x 2.4 & 12 x 1.8 GHz on Intel Core Ultra 7 265.
  • • CPU threads count is 14 on Intel Core Ultra 5 245 and 20 on Intel Core Ultra 7 265.
  • • Turbo clock speed is 5.1 GHz on Intel Core Ultra 5 245 and 5.3 GHz on Intel Core Ultra 7 265.
  • • L2 cache is 26 MB on Intel Core Ultra 5 245 and 36 MB on Intel Core Ultra 7 265.
  • • Clock multiplier is 35 on Intel Core Ultra 5 245 and 24 on Intel Core Ultra 7 265.
  • • PassMark result (multi-core) is 38809 on Intel Core Ultra 5 245 and 48917 on Intel Core Ultra 7 265.
  • • PassMark result (single-core) is 4475 on Intel Core Ultra 5 245 and 4633 on Intel Core Ultra 7 265.
  • • GPU turbo clock speed is 1900 MHz on Intel Core Ultra 5 245 and 1950 MHz on Intel Core Ultra 7 265.
Specs Comparison
Intel Core Ultra 5 245

Intel Core Ultra 5 245

Intel Core Ultra 7 265

Intel Core Ultra 7 265

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 ✓ ✓

When comparing the general platform specs of the Intel Core Ultra 5 245 and the Intel Core Ultra 7 265, the two processors are effectively identical across every listed attribute. Both are desktop-class CPUs built on the same LGA 1851 socket, meaning they are drop-in compatible with the same motherboards — an important consideration for builders planning to upgrade within the same platform without changing their board.

Both chips share a 3 nm semiconductor process node, a PCIe 5.0 interface, integrated graphics, 64-bit support, and an identical 105 °C maximum junction temperature. The shared PCIe 5.0 support ensures both can take full advantage of the latest high-bandwidth storage (NVMe Gen 5 SSDs) and discrete graphics cards without any bottleneck at the platform level. The equal thermal ceiling means neither chip has a cooling advantage or disadvantage out of the box.

For this spec group, the two processors are in a complete tie. No differentiation can be drawn from general platform specs alone — both belong to the same product family, target the same socket ecosystem, and share the same foundational architecture characteristics. The meaningful differences between these two CPUs will lie in their performance-level specs, such as core counts, clock speeds, and cache — not here.

Performance:
CPU speed 6 x 3.5 & 8 x 3 GHz 8 x 2.4 & 12 x 1.8 GHz
CPU threads 14 threads 20 threads
turbo clock speed 5.1GHz 5.3GHz
Has an unlocked multiplier ✕ ✕
L2 cache 26 MB 36 MB
Uses big.LITTLE technology ✓ ✓
clock multiplier 35 24
Turbo Boost version 2 2

The Intel Core Ultra 5 245 and Intel Core Ultra 7 265 differ in several performance-related specifications. The Intel Core Ultra 5 245 has a CPU speed of 6 x 3.5 GHz & 8 x 3 GHz, while the Intel Core Ultra 7 265 features 8 x 2.4 GHz & 12 x 1.8 GHz. This indicates that the Ultra 7 265 has more cores, but with slightly lower speeds for some of its cores.

In terms of CPU threads, the Ultra 5 245 has 14 threads, while the Ultra 7 265 has 20 threads, providing the latter with a greater multi-threading capability. The turbo clock speed is also slightly higher on the Ultra 7 265, at 5.3 GHz, compared to the Ultra 5 245’s 5.1 GHz.

Both processors share several characteristics, such as having an unlocked multiplier, an L2 cache (26 MB for the Ultra 5 245 and 36 MB for the Ultra 7 265), using big.LITTLE technology, a clock multiplier of 35 for the Ultra 5 245 and 24 for the Ultra 7 265, and both using Turbo Boost version 2. While the clock multipliers and L2 caches differ, the big.LITTLE technology and Turbo Boost versions are the same for both products.

Benchmarks:
PassMark result 38809 48917
PassMark result (single) 4475 4633

The Intel Core Ultra 5 245 and Intel Core Ultra 7 265 show differences in their PassMark benchmark results. The Ultra 5 245 has a PassMark result of 38809, while the Ultra 7 265 scores higher with 48917. This indicates that the Ultra 7 265 performs better in overall multi-core workloads.

When looking at single-thread performance, the Ultra 5 245 achieves a score of 4475, while the Ultra 7 265 scores 4633. The difference in single-thread performance is smaller but still indicates a slight edge for the Ultra 7 265.

In summary, both processors show a performance gap in both overall and single-threaded benchmarks, with the Ultra 7 265 outperforming the Ultra 5 245 in both categories.

Integrated graphics:
GPU clock speed 300 MHz 300 MHz
GPU turbo 1900 MHz 1950 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 5 245 and Intel Core Ultra 7 265 share several similar integrated graphics features, though there are a few key differences. Both processors have a GPU clock speed of 300 MHz and support up to 4 displays. They also both support DirectX 12, OpenGL 4.5, and OpenCL 3, meaning they provide the same capabilities in terms of graphics API compatibility.

The main difference between the two is in the GPU turbo speed. The Ultra 5 245 has a GPU turbo speed of 1900 MHz, while the Ultra 7 265 has a slightly higher GPU turbo speed of 1950 MHz.

Overall, both processors offer similar integrated graphics performance, with the Ultra 7 265 having a small edge in terms of GPU turbo speed.

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 5 245 and Intel Core Ultra 7 265 have identical specifications when it comes to memory. Both processors support a maximum RAM speed of 6400 MHz, DDR5 memory, and 2 memory channels. They also share the same maximum memory amount of 192GB and both support ECC (Error-Correcting Code) memory.

With identical memory capabilities, both processors provide the same potential for high-speed, high-capacity, and error-corrected memory usage.

In conclusion, there are no differences between the two processors in terms of memory specifications.

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 5 245 and Intel Core Ultra 7 265 have identical feature sets in this category. Both processors support the same instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. Additionally, both processors feature the NX bit, which provides security benefits by marking memory regions as non-executable.

As there are no differences in the instruction sets or the presence of the NX bit between the two processors, their capabilities in this area are identical.

In conclusion, the Ultra 5 245 and Ultra 7 265 are the same when it comes to these specific features.

Comparison Summary & Verdict

After examining all the data, both processors are strong contenders built on the same LGA 1851 platform with identical memory capabilities and feature sets. The Intel Core Ultra 7 265 pulls ahead with 20 threads versus 14, a larger 36 MB L2 cache, a higher turbo clock of 5.3 GHz, and significantly better PassMark multi-core score of 48,917 compared to 38,809, making it the clear choice for demanding multi-threaded workloads. The Intel Core Ultra 5 245, however, holds a notably higher clock multiplier of 35 and delivers strong single-core performance at a presumably lower price point, making it well-suited for everyday productivity and lighter workloads where maximum thread count is not critical.

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

Buy the Intel Core Ultra 5 245 if you need a capable everyday desktop processor with solid single-core performance and a higher clock multiplier, without requiring the extra threads and cache of a higher-tier chip.

Intel Core Ultra 7 265
Buy Intel Core Ultra 7 265 if...

Buy the Intel Core Ultra 7 265 if you run demanding multi-threaded applications and need the advantage of 20 threads, a larger 36 MB L2 cache, and higher overall benchmark scores.