AMD Ryzen 5 6600HS vs Intel Xeon E5-2650 v4 Comparison

The Intel Xeon E5-2650 v4 and AMD Ryzen 5 6600HS represent two radically different approaches to computing: a 12-core server/workstation behemoth from 2016 versus a 6-core mobile processor built on a modern 6nm process. The benchmark data shows a fascinating split, with each chip claiming victories in different workload types. The Xeon dominates in the newer Cinebench R23 tests, while the Ryzen 5 6600HS takes decisive wins in the older R15 tests, revealing that generation and architecture matter as much as raw core counts.

Head-to-Head Benchmarks

The most striking result is the complete reversal of fortunes between Cinebench R15 and R23. In Cinebench R15 multicore, the AMD Ryzen 5 6600HS scores 1656 against the Intel Xeon E5-2650 v4's 1098, a 33.7% advantage for the Ryzen. This is a massive gap, especially considering the Xeon has double the cores and threads. The single-core R15 test tells a similar story: the Ryzen scores 235 versus the Xeon's 155, a 34% lead. In these older benchmarks, the Ryzen's higher 4.50 GHz boost clock and newer Zen 3+ architecture simply overwhelmed the Xeon's older Broadwell design.

However, the picture flips dramatically in Cinebench R23. The Xeon E5-2650 v4 scores 10904 in multicore, while the Ryzen 5 6600HS manages only 9131. That is a 19.4% win for the Intel part, showcasing the raw throughput advantage of 12 physical cores and 24 threads when the workload scales properly. Even in single-core R23, the Xeon edges ahead with 1539 versus 1465, a 5.1% lead. This is counterintuitive given the Ryzen's much higher clock speeds, but the data is clear. The benchmark results indicate that R23's workload is more sensitive to sustained multi-core performance and possibly memory bandwidth, where the Xeon's quad-channel DDR4 configuration provides 68.3 GB/s versus the Ryzen's dual-channel 76.8 GB/s.

Looking at the aggregate data, the two chips are nearly inseparable. The Xeon E5-2650 v4 has an average benchmark score of 3154, while the Ryzen 5 6600HS sits at 3122, a difference of roughly 1%. Both processors occupy the same percentile tier, with the Xeon at 53 and the Ryzen at 52 out of all CPUs. The nearest rivals list confirms this tight competition: the Xeon's closest competitor is the AMD Ryzen 7 PRO 5850U with a 0.2% delta, and the Ryzen 5 6600HS's closest rival is the AMD Ryzen 3 5425U with a 0.1% delta. Interestingly, each chip appears in the other's nearestRivals list, with the Xeon showing a -1% delta when compared to the Ryzen 5 6600HS.

Architecture Differences

The architectural divide between these two processors is immense, spanning nearly a decade of semiconductor evolution. The Intel Xeon E5-2650 v4 is built on Intel's 14 nm process node with a die size of 246 mm² and 3,400 million transistors. It uses the Broadwell-EP architecture, which was designed for server and workstation workloads. The chip features 12 cores and 24 threads with a base clock of 2.20 GHz and a boost clock of 2.90 GHz. Its thermal design power is 105 watts, reflecting its server heritage.

The AMD Ryzen 5 6600HS, by contrast, is a mobile part built on TSMC's 6 nm process node with a die size of 208 mm². It uses the Zen 3+ architecture, codenamed Rembrandt, and belongs to AMD's 6000 series. The chip has 6 cores and 12 threads, running at a much higher 3.30 GHz base clock and 4.50 GHz boost clock. Its thermal design power is just 35 watts, less than a third of the Xeon's. The process node difference is stark: 6 nm versus 14 nm, which explains why AMD could fit a competitive processor in a much lower power envelope.

Cache configurations also differ significantly. Both chips have 64 KB of L1 cache per core, but the Xeon has 256 KB of L2 cache per core while the Ryzen has 512 KB per core. The L3 cache tells a different story: the Xeon has 30 MB shared, while the Ryzen has only 16 MB shared. The Xeon's larger L3 is a throwback to its server design, where large shared caches help with multi-threaded database and virtualization workloads. The Ryzen's smaller L3 is compensated by its higher clock speeds and newer architecture.

Memory support is another major differentiator. The Xeon uses DDR4 with a quad-channel memory bus, providing 68.3 GB/s of bandwidth. The Ryzen 5 6600HS uses DDR5 with a dual-channel bus, delivering 76.8 GB/s. Despite having fewer channels, the Ryzen actually achieves higher bandwidth due to DDR5's superior per-channel performance. The Xeon supports ECC memory, which is essential for server reliability, while the Ryzen does not. PCIe capabilities also differ: the Xeon offers Gen 3 with 40 lanes, while the Ryzen offers Gen 4 with 20 lanes. The Ryzen also includes integrated Radeon 660M graphics, whereas the Xeon has no integrated graphics at all.

FAQ

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

A: It depends on the benchmark generation. In Cinebench R15 multicore, the AMD Ryzen 5 6600HS wins with 1656 versus 1098, a 33.7% lead. However, in Cinebench R23 multicore, the Intel Xeon E5-2650 v4 wins with 10904 versus 9131, a 19.4% advantage.

Q: How do the single-core scores compare?

A: The results are mixed. The Ryzen 5 6600HS wins Cinebench R15 single-core with 235 versus 155, a 34% lead. But the Xeon E5-2650 v4 wins Cinebench R23 single-core with 1539 versus 1465, a 5.1% margin.

Q: What are the core and thread counts?

A: The Intel Xeon E5-2650 v4 has 12 cores and 24 threads. The AMD Ryzen 5 6600HS has 6 cores and 12 threads. The Xeon has double the core count of the Ryzen.

Q: Which processor has higher clock speeds?

A: The AMD Ryzen 5 6600HS has significantly higher clocks: 3.30 GHz base and 4.50 GHz boost. The Intel Xeon E5-2650 v4 is much lower at 2.20 GHz base and 2.90 GHz boost.

Q: How do their average benchmark scores compare?

A: The Intel Xeon E5-2650 v4 has an average benchmark score of 3154, slightly ahead of the AMD Ryzen 5 6600HS's 3122. The Xeon also holds a 53rd percentile rank versus the Ryzen's 52nd.

Q: What are the TDP differences?

A: The Intel Xeon E5-2650 v4 has a thermal design power of 105 watts. The AMD Ryzen 5 6600HS has a TDP of just 35 watts, making it far more power-efficient.

Specification Differences

The two processors differ in nearly every specification category. The Xeon E5-2650 v4 has 12 cores and 24 threads, while the Ryzen 5 6600HS has 6 cores and 12 threads. Base clocks are 2.20 GHz for the Intel part versus 3.30 GHz for the AMD part. Boost clocks are 2.90 GHz versus 4.50 GHz, respectively. The thermal design power is 105 watts for the Xeon and 35 watts for the Ryzen. The Xeon uses Intel Socket 2011-3, while the Ryzen uses AMD Socket FP7.

Architecture and process node differences are fundamental: the Xeon is Broadwell on 14 nm, built by Intel, while the Ryzen is Zen 3+ on 6 nm, built by TSMC. The Xeon has a die size of 246 mm² with 3,400 million transistors, while the Ryzen has a die size of 208 mm² with no transistor count listed. L2 cache differs at 256 KB per core for the Xeon versus 512 KB per core for the Ryzen. L3 cache is 30 MB shared for the Xeon versus 16 MB shared for the Ryzen.

Memory support diverges sharply: the Xeon uses DDR4 with a quad-channel bus and 68.3 GB/s bandwidth, while the Ryzen uses DDR5 with a dual-channel bus and 76.8 GB/s bandwidth. ECC memory is supported on the Xeon but not the Ryzen. PCIe lanes are 40 (Gen 3) for the Xeon versus 20 (Gen 4) for the Ryzen. The Ryzen includes integrated Radeon 660M graphics; the Xeon has none. The Xeon has a launch MSRP of $1166, while the Ryzen has no listed launch MSRP. The Xeon is marked as end-of-life, while the Ryzen is active. The Xeon's part number is SR2N3, while the Ryzen's is 100-000000546100-000000562.

The Verdict

The data suggests two distinct use cases. The Intel Xeon E5-2650 v4 is the choice for modern multi-threaded workloads that scale with core count, as evidenced by its 19.4% win in Cinebench R23 multicore. Its 12 cores, 24 threads, and 30 MB of L3 cache make it a capable server or workstation processor, especially for applications that can leverage its quad-channel memory bandwidth. The Xeon's 5.1% single-core win in R23 also indicates that newer software optimizations favor its architecture.

The AMD Ryzen 5 6600HS is the better option for legacy workloads and power-sensitive applications. Its 33.7% and 34% wins in Cinebench R15 multicore and single-core, respectively, show that older software runs significantly faster on this chip. The Ryzen's 35-watt TDP, compared to the Xeon's 105 watts, makes it dramatically more efficient, and its integrated Radeon 660M graphics provide functionality the Xeon simply lacks. The Ryzen's higher clock speeds and DDR5 support indicate it is designed for responsive, everyday computing.

The average benchmark scores are nearly identical, with the Xeon at 3154 and the Ryzen at 3122. This parity, combined with their opposite wins in different benchmark generations, suggests that neither chip is universally superior. The Xeon's end-of-life status and $1166 launch MSRP position it as an older, higher-end part, while the Ryzen is an active mobile processor without a listed MSRP. Users should choose based on their specific workload: modern multi-threaded tasks favor the Xeon, while legacy applications and mobility favor the Ryzen.

Where Each One Wins

The Intel Xeon E5-2650 v4 wins in Cinebench R23 multicore with 10904 points, a 19.4% advantage over the Ryzen 5 6600HS. It also wins in Cinebench R23 single-core with 1539 points, a 5.1% margin. These wins indicate the Xeon is better suited for modern rendering and compute workloads that use the latest instruction sets and thread scheduling. Its 12 cores and 24 threads provide substantial parallel processing capability, and its 30 MB L3 cache helps with data-heavy server tasks. The Xeon's quad-channel DDR4 memory bus, while lower bandwidth than the Ryzen's DDR5, offers greater capacity and reliability with ECC support.

The AMD Ryzen 5 6600HS wins decisively in Cinebench R15 multicore with 1656 points, a 33.7% lead over the Xeon's 1098. It also wins in R15 single-core with 235 points versus 155, a 34% advantage. These results show the Ryzen excels in older software that does not scale well with core counts or that relies heavily on single-thread performance. Its 4.50 GHz boost clock is a major factor, as is its more modern Zen 3+ architecture. The Ryzen's 35-watt TDP makes it ideal for laptops and other mobile devices where power efficiency is paramount. Its integrated Radeon 660M graphics provide a complete computing solution, and its DDR5 memory support offers higher bandwidth in a dual-channel configuration. The Ryzen's active production status and 52nd percentile ranking suggest it remains a relevant choice in the current market.