Intel Core 5 320 vs Intel Core Ultra 7 256V Comparison

Where Each One Wins

The benchmark split between these two mobile processors is heavily lopsided. The Intel Core Ultra 7 256V wins 14 of the 17 recorded head-to-head tests, while the Intel Core 5 320 wins only 3. This is not a close contest in overall throughput, but the Core 5 320 does hold two meaningful single-thread victories that matter for certain workloads.

The Core Ultra 7 256V dominates every multi-threaded and heavy compute category. In Cinebench R23 multi-core, it scores 10399 against 6197, a 40.4% advantage. That margin repeats across PassMark integer math (43358 vs 32323, 25.5% ahead), floating point math (58576 vs 42440, 27.5% ahead), and multithread (19530 vs 15450, 20.9% ahead). The 256V also wins all three encryption and compression tests: data compression by 19.6%, data encryption by 21.5%, and random string sorting by 19.8%. Its extra two cores and dual-channel memory bus give it a decisive edge in anything that scales with parallel resources.

The Core 5 320 wins Cinebench R23 single-core by a narrow 2.6% margin (1926 vs 1877.5) and PassMark single-thread by 0.4% (4045 vs 4029). These are small but consistent wins in lightly threaded tasks. The 320 also wins Cinebench R15 single-core? No, it loses that one by 3.3%. So its single-thread advantage appears only in the newer Cinebench R23 test and the PassMark single-thread metric, not universally. For a user running older single-thread benchmarks, the 256V still leads, meaning the 320's edge is limited to specific newer workloads.

The average benchmark score confirms the gap: the Core Ultra 7 256V averages 21112 across all recorded tests, while the Core 5 320 averages 18023. That puts the 256V at the 75th percentile of all CPUs in the database, versus the 320 at the 72nd percentile. The 256V sits close to the AMD Ryzen 5 7530U (0.1% behind) and Intel Core Ultra 7 155U (0.3% behind), while the 320 sits near the AMD Ryzen 5 1600 (0.2% ahead) and Intel Core i5-1334U (0.7% behind).

FAQ

Q: Which processor is faster in multi-core rendering?

A: The Intel Core Ultra 7 256V. In Cinebench R23 multi-core it scores 10399, which is 40.4% higher than the Core 5 320's 6197. The R20 multi-core gap is 21.5% (6958 vs 5462), and R15 multi-core shows a 33.4% lead (1583.5 vs 1054).

Q: Does the Core 5 320 win any benchmark at all?

A: Yes, it wins 3 of 17 head-to-head tests. It beats the 256V in Cinebench R23 single-core by 2.6% (1926 vs 1877.5) and in PassMark single-thread by 0.4% (4045 vs 4029). It also wins the duplicate PassMark singlethread test by the same 0.4%.

Q: How do these processors compare in encryption workloads?

A: The Core Ultra 7 256V leads in PassMark data encryption with 13998 against 10984, a 21.5% advantage. It also wins data compression with 184985 vs 148779, a 19.6% lead.

Q: What is the memory configuration difference?

A: The Core 5 320 uses a single-channel memory bus with 59.7 GB/s bandwidth, while the Core Ultra 7 256V uses dual-channel memory. The 256V has no recorded memory bandwidth figure in the database.

Q: Which processor has better integrated graphics?

A: The Core Ultra 7 256V uses Arc 140V graphics. The Core 5 320 uses Intel Xe3 Graphics with 2 Xe cores. No direct graphics benchmark scores are recorded for either, so the comparison is limited to the specification names.

Q: What is the production status and release timing?

A: Both are Active in production. The Core 5 320 has a release date of 2026-04-15, while the Core Ultra 7 256V released on 2024-09-23. The 320 carries a launch MSRP of $340; the 256V has no recorded launch MSRP.

Head-to-Head Benchmarks

The single largest margin in the entire comparison belongs to the Core Ultra 7 256V in Cinebench R23 multi-core. Its 10399 score beats the Core 5 320's 6197 by 40.4%. That is the kind of gap that shows up immediately in video rendering, batch photo processing, or any sustained all-core workload. The R15 multi-core test shows a similar story at 33.4% (1583.5 vs 1054), while R20 multi-core is a smaller but still significant 21.5% (6958 vs 5462).

PassMark find prime numbers is another extreme outlier. The 256V scores 192, which is 42.7% higher than the 320's 110. This is a raw integer throughput test that heavily favors the 256V's 8 cores and 8 threads over the 320's 6 cores and 6 threads. Floating point math shows a 27.5% lead (58576 vs 42440), and integer math a 25.5% lead (43358 vs 32323).

The Core 5 320's wins are all narrow. Its Cinebench R23 single-core score of 1926 beats the 256V's 1877.5 by just 2.6%. PassMark single-thread is nearly identical: 4045 vs 4029, a 0.4% edge. These are within run-to-run variance territory, but they do appear consistently across two separate single-thread metrics. In Cinebench R20 single-core, the 256V wins by 21.5% (982 vs 771), and in R15 single-core it wins by 3.3% (285.5 vs 276). So the 320's single-thread advantage is not universal; it depends on the specific benchmark version.

The mid-range tests, like PassMark multithread (19530 vs 15450, 20.9% ahead), physics (1595 vs 1221, 23.4% ahead), and extended instructions (15643 vs 13262, 15.2% ahead), all favor the 256V by roughly one-fifth to one-quarter. There is no test where the Core 5 320 leads by more than 2.6%.

Specification Differences

The two processors differ in almost every fundamental specification. The Core 5 320 has 6 cores and 6 threads, while the Core Ultra 7 256V has 8 cores and 8 threads. Neither uses simultaneous multithreading, so thread counts match core counts. Base clocks differ: the 320 runs at 1.50 GHz, the 256V at 2.20 GHz. Boost clocks are closer, with the 320 at 4.60 GHz and the 256V at 4.80 GHz.

Thermal design power is similar but not identical: 15 W for the 320, 17 W for the 256V. Sockets are different: the 320 uses Intel BGA 1516, the 256V uses Intel BGA 2833. They are not interchangeable in a motherboard.

Memory support differs substantially. The 320 lists DDR5 and LPDDR5X with a single-channel bus and a recorded bandwidth of 59.7 GB/s. The 256V lists memory support as dependent on the motherboard, with a dual-channel bus and no recorded bandwidth figure. This dual-channel configuration is likely a major reason for the 256V's large leads in memory-sensitive tests like data compression and random string sorting.

PCIe support also differs. The 320 provides Gen 4 with 6 lanes (CPU only), while the 256V provides Gen 5 with 4 lanes (CPU only). The 256V has the newer PCIe generation but fewer lanes.

Cache is a clear point of separation. The 320 has 192 KB L1 total, 2.5 MB L2, and 6 MB shared L3. The 256V has 192 KB L1 per core, 2.5 MB L2 per core, and 12 MB shared L3. With 8 cores, the 256V's total L2 is roughly 20 MB against the 320's 2.5 MB, and its L3 is double. This explains a portion of the 256V's superior multi-threaded performance in cache-heavy workloads.

Neither processor has ECC memory support, and both are multiplier-unlocked: false. The 320 has a launch MSRP of $340; the 256V has none recorded.

Architecture Differences

The Core 5 320 is built on the Wildcat Lake codename, part of the Core 5 generation, while the Core Ultra 7 256V uses the Lunar Lake architecture and belongs to the Core Ultra Series 2. Both are manufactured on a 3 nm process, but the foundries differ: the 320 is fabricated by Intel, the 256V by TSMC.

The integrated graphics are completely different. The 320 pairs with Intel Xe3 Graphics featuring 2 Xe cores. The 256V uses Arc 140V, which is a higher-tier integrated GPU. No graphics benchmarks are recorded in the database, but the naming convention and the Arc branding indicate a more capable iGPU on the 256V.

The 256V's per-core cache design (192 KB L1 per core, 2.5 MB L2 per core) versus the 320's total cache figures (192 KB L1, 2.5 MB L2) is a structural difference. The 256V's L3 is 12 MB shared, exactly double the 320's 6 MB shared. This is not just a capacity bump; it reflects a different memory hierarchy design suited to the Lunar Lake architecture's focus on efficiency and bandwidth.

The 256V uses a dual-channel memory bus, while the 320 uses single-channel. That alone can account for significant performance differences in memory-bound tasks, independent of core count. The 256V also lists PCIe Gen 5 support, which is one generation ahead of the 320's Gen 4, though with fewer lanes.

Release timing separates the two by about a year and a half. The 256V launched 2024-09-23, while the 320 launched 2026-04-15. The 320 is the newer part, despite being the lower performer in most tests. Its Wildcat Lake design appears to prioritize single-thread efficiency and lower cost over raw multi-core throughput.

The Verdict

The data points to a clear performance hierarchy. The Intel Core Ultra 7 256V is the faster processor in 14 of 17 recorded tests, with leads ranging from 3.3% in Cinebench R15 single-core to 42.7% in PassMark find prime numbers. Its 8 cores, dual-channel memory, double the L3 cache, and per-core L2 design give it a substantial advantage in multi-threaded and memory-intensive workloads. The average benchmark score of 21112 versus 18023, and the 75th versus 72nd percentile ranking, reinforce this conclusion.

The Core 5 320 is not without merit. It wins Cinebench R23 single-core by 2.6% and PassMark single-thread by 0.4%. It also launches newer, uses Intel's own 3 nm fab, and has a recorded launch MSRP of $340. For workloads that rely almost entirely on a single thread and fit within a smaller cache, the 320 can edge ahead. But those wins are narrow and inconsistent across different Cinebench versions.

Anyone selecting between these two for a mobile build should weigh the 256V's dominant multi-core and memory performance against the 320's slight single-thread edge in newer tests. The 256V also brings Arc 140V graphics, PCIe Gen 5, and a dual-channel memory bus. The 320 offers a lower TDP of 15 W versus 17 W, a newer release date, and Intel's in-house fabrication. For general productivity, content creation, or any parallel workload, the Core Ultra 7 256V is the stronger choice. For a specific single-thread-focused application where the R23 single-core test is representative, the Core 5 320 holds a small but real advantage.