AMD Ryzen 3 2300U vs Intel Xeon W3520 Comparison

Where Each One Wins

The recorded data splits these two processors cleanly by era and intent. The AMD Ryzen 3 2300U is a modern mobile part built for efficiency and single-thread responsiveness. The Intel Xeon W3520 is an older workstation/server chip designed for heavily threaded workloads. In the only shared benchmark, Cinebench R15 multicore, the Ryzen 3 2300U wins outright. That is the sole head-to-head test in the database, and it favors AMD by a substantial margin. The Ryzen 3 2300U scores 422.5 against the Xeon W3520's 252, a 67.7% advantage. This means for any multicore rendering task measured by that test, the Ryzen 3 2300U delivers noticeably higher throughput.

However, the Xeon W3520 has its own strengths when looking at its full benchmark suite. It records a Cinebench R20 multicore score of 1052, a Cinebench R23 multicore score of 2505, and a Cinebench R20 single-core score of 148. These results indicate that despite its age, the Xeon can still handle sustained multi-threaded loads. The Ryzen 3 2300U has no corresponding R20 or R23 results in the database, so direct comparisons there are not possible. What the data does show is that the Xeon W3520, with 8 threads versus the Ryzen's 4 threads, is built for parallel processing. The Ryzen 3 2300U, with its higher boost clock of 3.40 GHz versus the Xeon's 2.93 GHz, is better suited for tasks that rely on single-core speed.

The use-case split is clear. For modern mobile workloads, light gaming with integrated graphics, and everyday productivity, the Ryzen 3 2300U wins. For legacy server or workstation applications that can leverage eight threads, the Xeon W3520 remains functional, but it trails in the one test where both are measured. The Ryzen 3 2300U also holds a 2% higher average benchmark score (880 versus 862), reinforcing its overall edge. In short, the Ryzen 3 2300U is the better all-around performer; the Xeon W3520 is a niche part for older multi-threaded software.

Architecture Differences

The two CPUs come from completely different design philosophies and manufacturing eras. The AMD Ryzen 3 2300U uses the Zen architecture, codenamed Raven Ridge, built on a 14 nm process at GlobalFoundries. It packs 4,950 million transistors into a 210 mm² die. The Intel Xeon W3520 uses the Nehalem architecture, codenamed Bloomfield, built on a 45 nm process at Intel. It contains only 731 million transistors on a larger 263 mm² die. The node difference is stark: 14 nm versus 45 nm explains much of the efficiency gap.

Cache hierarchies differ significantly. The Ryzen 3 2300U has 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The Xeon W3520 has 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3 cache. While the Xeon has double the L3, the Ryzen's smaller, faster cache per core benefits single-threaded latency. The Ryzen also supports DDR4 memory on a dual-channel bus with 38.4 GB/s bandwidth. The Xeon supports DDR3 on a triple-channel bus, though the database does not list a bandwidth figure for it.

Feature sets diverge sharply. The Ryzen 3 2300U includes integrated Radeon Vega 6 graphics, making it a complete APU. The Xeon W3520 has no integrated graphics at all, requiring a discrete GPU. The Ryzen supports PCIe Gen 3 with 8 CPU lanes; the Xeon supports PCIe Gen 2. The Ryzen does not support ECC memory, while the Xeon does, a key differentiator for workstation reliability. The Ryzen is a mobile part on AMD Socket FP5 with a 15 W TDP. The Xeon is a server/workstation part on Intel Socket 1366 with a 130 W TDP. The power envelope difference is enormous: the Ryzen draws a fraction of the Xeon's power while delivering better multicore performance in the shared test.

Manufacturing status also differs. The Ryzen 3 2300U remains active in production, released in January 2018. The Xeon W3520 is end-of-life, released in March 2009. The Ryzen is part of AMD's 2000 series, while the Xeon has no series designation. Both have locked multipliers, so neither is overclockable. The Ryzen's part number is YM2300C4T4MFB; the Xeon's is SLBEW.

Head-to-Head Benchmarks

The database contains exactly one head-to-head benchmark between these two processors: Cinebench R15 multicore. The AMD Ryzen 3 2300U scores 422.5, while the Intel Xeon W3520 scores 252. The Ryzen wins with a 67.7% delta. This is the defining measurement. It shows that even with half the threads (4 versus 8), the Ryzen 3 2300U's modern architecture and higher clocks crush the older Xeon in a multicore render. The 67.7% margin is not marginal; it is a generational leap.

Looking at the wider benchmark results, the Ryzen 3 2300U also records a Cinebench R15 single-core score of 79, a Geekbench multicore score of 2234, and a Geekbench single-core score of 783. These numbers reinforce its strength in latency-sensitive tasks. The Xeon W3520 counters with its own set of results: Cinebench R20 multicore at 1052, Cinebench R20 single-core at 148, Cinebench R23 multicore at 2505, and Cinebench R23 single-core at 353. These scores show the Xeon is not useless, but they are from different test versions, so they cannot be directly compared to the Ryzen's numbers.

The average benchmark scores tell a similar story. The Ryzen 3 2300U averages 880 across all its benchmark results, while the Xeon W3520 averages 862. That is a 2.1% difference in favor of AMD. Both CPUs sit in the 23rd percentile of all CPUs in the database, meaning they are entry-level performers by modern standards. But the Ryzen achieves that standing with far lower power consumption and a much newer design. The Xeon's nearest rivals include the Intel Core i5-3470T (avg score 863, -0.1% delta) and the Intel Xeon X3460 (avg score 866, -0.5% delta), confirming it sits in a tight cluster of older quad-core parts. The Ryzen's nearest rivals include the AMD PRO A12-8870E (avg score 880, 0% delta) and the Intel Core i3-1000NG4 (avg score 881, -0.1% delta), showing it competes with low-power modern chips.

Specification Differences

The two processors differ in nearly every measurable specification. Here are the fields where they diverge:

• Threads: The Ryzen 3 2300U has 4 threads; the Xeon W3520 has 8 threads.
• Base Clock: The Ryzen runs at 2000.00 MHz; the Xeon runs at 2.67 GHz.
• Boost Clock: The Ryzen boosts to 3.40 GHz; the Xeon boosts to 2.93 GHz.
• TDP: The Ryzen is rated at 15 W; the Xeon is rated at 130 W.
• Socket: The Ryzen uses AMD Socket FP5; the Xeon uses Intel Socket 1366.
• Architecture: The Ryzen is Zen (Raven Ridge); the Xeon is Nehalem (Bloomfield).
• Process Node: The Ryzen is 14 nm; the Xeon is 45 nm.
• Foundry: GlobalFoundries produces the Ryzen; Intel produces the Xeon.
• Transistors: The Ryzen has 4,950 million; the Xeon has 731 million.
• Die Size: The Ryzen is 210 mm²; the Xeon is 263 mm².
• L1 Cache: 96 KB per core on Ryzen; 64 KB per core on Xeon.
• L2 Cache: 512 KB per core on Ryzen; 256 KB per core on Xeon.
• L3 Cache: 4 MB shared on Ryzen; 8 MB shared on Xeon.
• Memory Support: DDR4 on Ryzen; DDR3 on Xeon.
• Memory Bus: Dual-channel on Ryzen; triple-channel on Xeon.
• Memory Bandwidth: 38.4 GB/s on Ryzen; not listed for Xeon.
• ECC Memory: Not supported on Ryzen; supported on Xeon.
• PCIe: Gen 3 with 8 lanes on Ryzen; Gen 2 on Xeon.
• Integrated Graphics: Radeon Vega 6 on Ryzen; none on Xeon.
• Market Segment: Mobile on Ryzen; Server/Workstation on Xeon.
• Production Status: Active on Ryzen; End-of-life on Xeon.
• Release Date: January 2018 for Ryzen; March 2009 for Xeon.

The only spec they share is core count: both have 4 physical cores. Everything else is a point of differentiation.

FAQ

Q: Which processor is faster in the only benchmark they share?

A: The AMD Ryzen 3 2300U wins Cinebench R15 multicore with a score of 422.5 versus the Intel Xeon W3520's 252, a 67.7% advantage.

Q: Does the Intel Xeon W3520 have more threads?

A: Yes, the Xeon W3520 has 8 threads versus 4 threads on the Ryzen 3 2300U, despite both having 4 cores.

Q: Which CPU supports ECC memory?

A: The Intel Xeon W3520 supports ECC memory, while the AMD Ryzen 3 2300U does not.

Q: What is the power consumption difference?

A: The Ryzen 3 2300U has a TDP of 15 W, while the Xeon W3520 has a TDP of 130 W, a major efficiency gap.

Q: Does the Ryzen 3 2300U have integrated graphics?

A: Yes, it includes Radeon Vega 6 integrated graphics, while the Xeon W3520 has no integrated graphics.

Q: Which processor is still in production?

A: The AMD Ryzen 3 2300U is active in production, while the Intel Xeon W3520 is end-of-life.