Intel Core 5 120 VS Intel Core i5-110

The most fundamental difference between these two processors is their intended platform: the Intel Core 5 120 is a desktop CPU built for the LGA 1700 socket, while the Intel Core i5-110 is a laptop chip on the older LGA 1200 socket. This distinction matters beyond form factor — it determines motherboard compatibility, upgrade paths, and the overall ecosystem each chip belongs to. LGA 1700 is a more modern platform with broader feature support, whereas LGA 1200 represents an older generation with a more limited roadmap.

Manufacturing process is another area where the Core 5 120 holds a clear advantage: its 10 nm semiconductor size is significantly more refined than the 14 nm process used in the Core i5-110. A smaller node generally translates to better power efficiency and improved transistor density, meaning the Core 5 120 can deliver more capability within the same thermal envelope. This is reinforced by the leap in connectivity: PCIe 5 on the Core 5 120 versus PCIe 3 on the Core i5-110 — a two-generation gap that enables dramatically higher bandwidth for NVMe storage and discrete GPUs, future-proofing the platform considerably.

Both chips share a 65W TDP and a maximum CPU temperature of 100 °C, and both support integrated graphics and 64-bit computing. These commonalities mean neither has a thermal or compatibility edge in those areas. Overall, the Core 5 120 holds a decisive advantage in this general-info category: it offers a newer manufacturing process, a more modern socket platform, and significantly faster PCIe support — making it the more capable and forward-looking choice of the two.

At first glance, the clock speed story here is nuanced. The Core i5-110 edges ahead in base frequency at 2.9 GHz versus the Core 5 120's 2.5 GHz, which means it sustains higher speeds during lighter, steady-state workloads. However, the Core 5 120 flips the script under load, reaching a turbo peak of 4.5 GHz compared to 4.3 GHz — a modest but real advantage in burst-heavy tasks like compiling, rendering short clips, or launching applications. Both chips field the same 6-core, 12-thread configuration with identical Turbo Boost version 2 support, so parallelism is a wash.

Where the Core 5 120 separates itself more decisively is in cache. Its 18 MB L3 cache — at 3 MB per core — dwarfs the Core i5-110's 12 MB (2 MB/core). Cache size directly affects how often the CPU must reach out to slower system memory: a larger L3 keeps more working data on-die, reducing latency in data-intensive workloads like gaming, large spreadsheet operations, and database queries. A 50% cache advantage is not a marginal spec difference — it has tangible real-world impact.

Weighing the two, the Core i5-110's higher base clock gives it a slight edge in sustained lightly-threaded tasks, but the Core 5 120 holds the broader performance advantage by combining a higher turbo ceiling with substantially more L3 cache — the combination that matters most across the widest range of modern workloads.

Both chips carry integrated graphics with the same 24 execution units and 192 shading units, and share identical API support — DirectX 12, OpenGL 4.5, and OpenCL 3 — so the software compatibility baseline is equal. The meaningful divergence shows up in clocks and output hardware. The Core i5-110's UHD 630 has a marginally higher base clock at 350 MHz, but this advantage evaporates quickly: the Core 5 120's UHD 730 reaches a turbo of 1500 MHz versus just 1100 MHz on the 630 — a 36% gap that directly benefits any GPU-accelerated workload, from video decoding to light gaming bursts.

The ROPs and TMU counts cut in different directions. The Core i5-110 carries twice the texture mapping units (24 TMUs vs 12), which aids texture throughput in rendering pipelines. But the Core 5 120 counters with nearly three times the render output units (8 ROPs vs 3), which govern pixel fill rate — the rate at which the GPU writes final pixels to the framebuffer. In practice, more ROPs tend to have a broader impact on general rendering smoothness than additional TMUs at this class of integrated graphics. The Core 5 120 also supports 4 simultaneous displays versus 3, a practical advantage for multi-monitor office setups.

Taken together, the Core 5 120 holds a clear edge in integrated graphics: its substantially higher GPU turbo clock and superior ROP count position the UHD 730 as the more capable iGPU for sustained tasks, and the added display output is a meaningful real-world bonus.

The memory gap between these two chips is generational in the most literal sense. The Core 5 120 supports DDR5 at up to 4800 MHz, while the Core i5-110 is limited to DDR4 at 2666 MHz. This isn't just a frequency advantage — it represents a full memory standard leap, meaning the platforms require entirely different RAM modules. DDR5 brings lower per-pin voltage, higher density modules, and a fundamentally higher ceiling for future memory configurations.

The bandwidth numbers tell the most practical story: the Core 5 120 delivers up to 76.8 GB/s of memory bandwidth versus 41.6 GB/s on the Core i5-110 — nearly double. Memory bandwidth is a critical bottleneck in workloads that move large amounts of data rapidly, including video editing, machine learning inference, large in-memory databases, and even the integrated GPU (which draws directly from system RAM). For the Core i5-110, that 41.6 GB/s ceiling will be felt as a constraint in these scenarios noticeably sooner. Both chips share a dual-channel configuration, so the architecture is equivalent — the difference is purely in what that dual channel can carry.

Maximum supported memory also favors the Core 5 120 at 192 GB versus 128 GB, a distinction that matters for memory-intensive professional workloads. With neither chip supporting ECC, that feature is a non-factor here. The Core 5 120 wins this category decisively — faster standard, nearly double the bandwidth, and a higher memory ceiling make it the substantially stronger platform for memory-dependent use cases.

This category is a clean sweep for parity. The Intel Core 5 120 and Intel Core i5-110 share an identical instruction set lineup — AVX2, FMA3, AES, SSE 4.1/4.2, F16C, and MMX — along with multithreading support and the NX bit security feature. There is no differentiator to analyze here; every listed capability is present on both chips.

That said, these shared features are worth contextualizing. AES hardware acceleration means both chips handle disk and network encryption with negligible CPU overhead — relevant for anything running BitLocker, HTTPS, or VPN workloads. AVX2 and FMA3 enable vectorized floating-point math, benefiting scientific computing, media encoding, and AI inference at the software level. Both chips also support multithreading, which maps to the 12-thread configuration seen in their performance specs.

Since every spec in this group is identical, the verdict is an unambiguous tie — neither chip offers any feature advantage over the other here, and this category should not factor into a decision between them.