AMD Ryzen 3 4300U vs Intel Xeon E5-2637 v3 Comparison

Head-to-Head Benchmarks

The benchmark data presents a clear split between these two processors. The Intel Xeon E5-2637 v3 and AMD Ryzen 3 4300U each take two wins in the head-to-head comparison, but the margins tell a more interesting story than the raw win count.

In multi-threaded workloads, the Xeon dominates. In Cinebench R23 multi-core, the Xeon scores 6130 against the Ryzen's 3571, a massive 71.7% advantage. This is the single largest delta in the entire comparison. The older Haswell architecture, despite its age, clearly leverages its 8 threads versus the Ryzen's 4 threads in heavily parallel workloads. The Cinebench R15 multi-core test shows the same pattern, with the Xeon at 617 and the Ryzen at 562.5, a 9.7% lead for Intel.

The single-core results flip the script dramatically. The Ryzen 3 4300U posts a Cinebench R15 single-core score of 163.9, while the Xeon manages only 87. That is a 46.9% deficit for Intel, an enormous gap that highlights just how far single-thread performance has advanced. In Cinebench R23 single-core, the Ryzen scores 1074 versus the Xeon's 865, a 19.5% advantage for AMD. The Ryzen's Zen 2 architecture delivers roughly double the single-core performance per clock in the older R15 test, and a solid lead in the newer R23 benchmark.

The average benchmark scores in the database place both processors at the same percentile (41) among all CPUs. The Xeon's average score is 1773, while the Ryzen sits at 1742. These are nearly identical overall numbers, but they are achieved through completely different performance profiles. The Xeon's nearest rivals include the Intel Xeon E5-4610 v3 at 1777 (0.2% higher) and the AMD Ryzen 3 PRO 1300 at 1778 (0.3% higher). The Ryzen 3 4300U sits exactly level with the Intel Core i3-10100 at 1742, with the Intel Core i5-6600 just 0.1% ahead at 1744.

What the data shows is that these chips are not competing for the same workloads. The Xeon is a server part that scales in multi-threaded tasks, while the Ryzen is a mobile part that excels in responsiveness and lightly threaded work. The 71.7% multi-core lead for Intel in R23 is the headline number, but the 46.9% single-core deficit in R15 is arguably more consequential for everyday use.

Architecture Differences

The architectural gap between these two processors spans nearly a decade of design philosophy. The Intel Xeon E5-2637 v3 uses the Haswell-EP architecture on a 22 nm process node, manufactured by Intel. It packs 2,600 million transistors into a 356 mm² die. The AMD Ryzen 3 4300U uses Zen 2 (Renoir) on a 7 nm process from TSMC, with 9,800 million transistors in a much smaller 156 mm² die.

Both chips have 4 physical cores, but the threading approach differs fundamentally. The Xeon supports 8 threads through Hyper-Threading, while the Ryzen 3 4300U has 4 threads with no SMT. This explains the multi-core benchmark disparity: the Xeon has twice the thread count to feed its execution units.

Cache configurations also diverge sharply. Both have 64 KB of L1 per core and the Xeon has 256 KB of L2 per core, while the Ryzen doubles that to 512 KB per core. The L3 cache is where the gap is most pronounced: the Xeon offers 15 MB shared, while the Ryzen has only 4 MB shared. That 11 MB difference is significant for server workloads that repeatedly access large datasets.

Memory support reflects their intended markets. The Xeon uses quad-channel DDR4 with a memory bandwidth of 68.3 GB/s and supports ECC memory. The Ryzen uses dual-channel DDR4 or LPDDR4 with 51.2 GB/s bandwidth and no ECC support. The Xeon also provides 40 PCIe Gen 3 lanes from the CPU, while the Ryzen's PCIe configuration is simply listed as Gen 3 without a lane count.

The Ryzen includes integrated Radeon Graphics with 320 SPs, while the Xeon has no integrated graphics at all. This makes the Ryzen a self-contained mobile solution, whereas the Xeon requires a discrete GPU for any display output. The Xeon's TDP is 135 watts, a massive draw for a 4-core part, while the Ryzen sips at 15 watts, a 9x difference in power envelope.

The production status also differs: the Xeon is end-of-life, released in September 2014, while the Ryzen remains active, released in January 2020. The Xeon's launch MSRP was $996, reflecting its workstation positioning, while the Ryzen has no recorded launch MSRP in the database.

FAQ

Q: Which processor has better multi-core performance?

A: The Intel Xeon E5-2637 v3 wins decisively. It leads by 9.7% in Cinebench R15 multi-core (617 vs 562.5) and by 71.7% in Cinebench R23 multi-core (6130 vs 3571). The Xeon's 8 threads versus the Ryzen's 4 threads drive this advantage.

Q: Which processor has better single-core performance?

A: The AMD Ryzen 3 4300U is far ahead. It scores 163.9 versus 87 in Cinebench R15 single-core, a 46.9% lead, and 1074 versus 865 in Cinebench R23 single-core, a 19.5% lead. The Zen 2 architecture delivers substantially higher IPC than Haswell.

Q: Do both processors have the same number of cores?

A: Yes, both have 4 physical cores. However, the Xeon supports 8 threads through Hyper-Threading, while the Ryzen has only 4 threads. This thread count difference is the primary reason for the Xeon's multi-core dominance.

Q: What is the memory bandwidth difference?

A: The Xeon supports quad-channel DDR4 with 68.3 GB/s bandwidth and ECC memory. The Ryzen uses dual-channel DDR4 or LPDDR4 with 51.2 GB/s and no ECC. The Xeon's memory subsystem is designed for server workloads requiring high throughput and data integrity.

Q: Which processor includes integrated graphics?

A: Only the AMD Ryzen 3 4300U includes integrated Radeon Graphics with 320 SPs. The Intel Xeon E5-2637 v3 has no integrated graphics, requiring a discrete GPU for display output.

Q: How do their average benchmark scores compare?

A: The Xeon has an average benchmark score of 1773, while the Ryzen scores 1742. Both sit at the 41st percentile among all CPUs. The Xeon's nearest rival is the AMD Ryzen 3 PRO 1300 at 1778 (0.3% higher), while the Ryzen's closest match is the Intel Core i3-10100 at 1742 (exact tie).

The Verdict

The data points to two entirely different use cases. The Intel Xeon E5-2637 v3 is the choice for multi-threaded, server-class workloads. Its 71.7% lead in Cinebench R23 multi-core and 9.7% lead in R15 multi-core make it the clear pick for rendering, compilation, virtualization, or any task that scales with thread count. The quad-channel memory with ECC support and 68.3 GB/s bandwidth further reinforce its server positioning. However, its 135 watt TDP, lack of integrated graphics, and end-of-life status make it unsuitable for modern mobile or desktop efficiency builds.

The AMD Ryzen 3 4300U wins on single-core performance by a wide margin, with a 46.9% lead in R15 and 19.5% in R23. Its 15 watt TDP, integrated Radeon Graphics, and active production status make it a practical choice for laptops and compact systems. The 7 nm process and 9,800 million transistors in a 156 mm² die demonstrate a far more modern design. The Ryzen's 4 MB L3 cache and dual-channel memory are sufficient for its intended mobile role, but they would bottleneck in server-style workloads.

For a builder choosing between these two, the decision comes down to workload type. If the task is heavily multi-threaded and runs on a server or workstation with a discrete GPU, the Xeon's 8 threads and large 15 MB L3 cache deliver measurable wins. If the task is single-threaded, power-sensitive, or requires integrated graphics, the Ryzen is the only rational choice. The 41st percentile ranking for both chips indicates they occupy similar overall performance tiers, but the distribution of that performance could not be more different.

Specification Differences

The two processors differ on nearly every specification that matters. The Xeon uses the Haswell-EP architecture on a 22 nm process from Intel, while the Ryzen uses Zen 2 on a 7 nm process from TSMC. The Xeon has 2,600 million transistors on a 356 mm² die, while the Ryzen packs 9,800 million transistors into a 156 mm² die.

Core and thread counts: both have 4 cores, but the Xeon has 8 threads versus the Ryzen's 4. Base clocks are 3.50 GHz for the Xeon and 2.70 GHz for the Ryzen, while boost clocks are identical at 3.70 GHz. TDP is a major differentiator: 135 watts for the Xeon versus 15 watts for the Ryzen.

Cache: L1 is the same at 64 KB per core, but L2 differs (256 KB per core for Xeon, 512 KB per core for Ryzen). L3 is 15 MB shared for the Xeon versus 4 MB shared for the Ryzen.

Memory: the Xeon supports quad-channel DDR4 with 68.3 GB/s bandwidth and ECC, while the Ryzen supports dual-channel DDR4 or LPDDR4 with 51.2 GB/s and no ECC. PCIe is Gen 3 with 40 lanes for the Xeon, while the Ryzen is listed simply as Gen 3.

Integrated graphics: the Xeon has none, the Ryzen has Radeon Graphics 320SP. Sockets differ: Intel Socket 2011-3 for the Xeon, AMD Socket FP6 for the Ryzen. The Xeon is end-of-life with a $996 launch MSRP, while the Ryzen is active with no recorded MSRP.

Where Each One Wins

The Intel Xeon E5-2637 v3 wins in multi-threaded rendering and compute tasks. The Cinebench R23 multi-core score of 6130 versus 3571 is a 71.7% advantage, making it the superior choice for CPU-bound server workloads. The 15 MB shared L3 cache and quad-channel memory with ECC support suit databases, virtualized environments, and long-running batch jobs. The 40 PCIe Gen 3 lanes allow for extensive expansion in a workstation chassis. The Xeon's 8 threads give it a structural advantage in any workload that can utilize more than 4 threads.

The AMD Ryzen 3 4300U wins in single-threaded responsiveness and power-constrained environments. The 46.9% lead in Cinebench R15 single-core and 19.5% lead in R23 single-core make it the better choice for everyday applications, web browsing, office work, and lightly threaded software. The 15 watt TDP enables fanless or low-noise designs in laptops and compact systems. The integrated Radeon Graphics 320SP eliminates the need for a discrete GPU, reducing cost and complexity. The 7 nm process and 512 KB L2 per core provide a modern foundation that the aging 22 nm Haswell design cannot match.

The database records two wins for each processor, but the nature of those wins matters. The Xeon's multi-core victories are decisive, especially the 71.7% R23 margin. The Ryzen's single-core victories are equally decisive, with the 46.9% R15 margin being the second-largest delta in the comparison. A builder should choose based on whether their primary applications scale with threads or with single-core speed. There is no universal winner here, only the right tool for a specific job.