AMD Ryzen 7 3750H vs Intel Core i5-5675R Comparison

Head-to-Head Benchmarks

The recorded data shows a fascinating split between the AMD Ryzen 7 3750H and the Intel Core i5-5675R, with each processor taking three wins across the six shared benchmarks. The most dramatic result comes in the Cinebench R15 single-core test, where the AMD Ryzen 7 3750H scores 144 against the Intel Core i5-5675R's 67, a staggering 114.9% advantage. This is not a marginal lead; it is a near doubling of performance in that specific workload. The same pattern holds in Cinebench R23 single-core, where the AMD chip scores 971 versus 668, a 45.4% margin in favor of the Ryzen.

The AMD processor also dominates the Cinebench R15 multi-core test, scoring 734 against Intel's 476, which translates to a 54.2% lead. These three wins for the AMD Ryzen 7 3750H are all decisive, suggesting that in older Cinebench versions and in single-threaded rendering tasks, the Zen+ architecture holds a clear edge.

However, the Intel Core i5-5675R fights back in the more modern workloads. In Cinebench R23 multi-core, the Intel chip scores 4733 against AMD's 3897, a 17.7% advantage. The Geekbench results also favor Intel: the multi-core score is 3738 versus 3446, a 7.8% lead, and the single-core score is 1234 versus 950, a 23% advantage. This is a curious inversion. The AMD chip wins older Cinebench tests by huge margins, yet the Intel chip wins newer Cinebench and Geekbench tests by smaller but consistent margins.

Looking at the average benchmark scores, the two processors are extremely close. The AMD Ryzen 7 3750H has an average score of 1690, while the Intel Core i5-5675R sits at 1648. The nearest rivals in the database underscore this parity. The AMD chip's closest competitor is the Intel Core i7-980 with an average score of 1693, a delta of just 0.1%. The Intel chip's nearest rival is the AMD Ryzen 5 3550H at 1653, a delta of 0.3%. Both processors occupy the 40th percentile of all CPUs, meaning they are statistically indistinguishable in aggregate performance, even though individual benchmarks show wide swings.

FAQ

Q: Which processor has a higher single-core score in Geekbench?

A: The Intel Core i5-5675R scores 1234 in Geekbench single-core, while the AMD Ryzen 7 3750H scores 950. This gives Intel a 23% advantage in that test.

Q: How do the two chips compare in Cinebench R23 multi-core?

A: The Intel Core i5-5675R scores 4733, which is 17.7% higher than the AMD Ryzen 7 3750H's score of 3897. This is one of Intel's three benchmark wins.

Q: Is there a benchmark where the AMD Ryzen 7 3750H wins by more than 100%?

A: Yes. In Cinebench R15 single-core, the AMD chip scores 144 versus Intel's 67, a 114.9% delta. This is the largest margin recorded in the head-to-head data.

Q: What is the average benchmark score for each processor?

A: The AMD Ryzen 7 3750H has an average benchmark score of 1690, while the Intel Core i5-5675R has an average of 1648. The difference is less than 3%.

Q: Do both processors occupy the same performance percentile?

A: Yes, both the AMD Ryzen 7 3750H and the Intel Core i5-5675R are listed at the 40th percentile of all CPUs in the database.

Q: Which chip wins the Cinebench R15 multi-core test?

A: The AMD Ryzen 7 3750H wins with a score of 734 against Intel's 476, a 54.2% margin. This is AMD's largest multi-core win.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 7 3750H is built on the Zen+ architecture, codenamed Picasso, and manufactured on a 12 nm process at GlobalFoundries. It packs 4,940 million transistors into a die size of 210 mm². The Intel Core i5-5675R, by contrast, uses the Broadwell architecture, built on a 14 nm process at Intel, with a die size of 182 mm². Intel does not list a transistor count in the database.

The cache hierarchies differ notably. The AMD chip has a larger L1 cache at 96 KB per core and a larger L2 cache at 512 KB per core, while Intel uses 64 KB per core for L1 and 256 KB per core for L2. Both share 4 MB of L3 cache. The AMD processor supports DDR4 memory, while the Intel chip supports DDR3. Intel also lists a specific memory bandwidth figure of 29.9 GB/s, whereas AMD does not provide one in the database.

The integrated graphics also diverge. The AMD Ryzen 7 3750H features Radeon Vega 10, while the Intel Core i5-5675R includes Iris Pro Graphics 6200. Both support PCIe Gen 3, but Intel specifies 16 lanes (CPU only), while AMD does not list a lane count. The market segments differ as well: AMD positions the 3750H as a mobile processor, while Intel lists the 5675R as a desktop part. The sockets are entirely incompatible: AMD Socket FP5 versus Intel BGA 1364.

Specification Differences

The most obvious difference is thread count. The AMD Ryzen 7 3750H offers 8 threads from its 4 cores, while the Intel Core i5-5675R offers only 4 threads from its 4 cores. This means AMD has simultaneous multithreading, which likely explains its dominance in Cinebench R15 multi-core. The base clocks are different as well: AMD runs at 2.30 GHz, while Intel runs at 3.10 GHz. The boost clocks are also distinct, with AMD reaching 4.00 GHz and Intel topping out at 3.60 GHz.

The thermal design power (TDP) differs substantially. The AMD chip is rated at 35 watts, while the Intel chip is rated at 65 watts. This is a significant gap, especially given that AMD is positioned as a mobile part and Intel as a desktop part. The process nodes differ by 2 nm (12 nm versus 14 nm), and the foundries are different: GlobalFoundries for AMD, Intel for Intel.

The release dates show a generational gap. The AMD Ryzen 7 3750H was released on January 5, 2019, while the Intel Core i5-5675R was released on May 14, 2015. The Intel chip has a launch MSRP of $265, which can be stated once as a historical fact. The AMD chip has no launch MSRP in the database. Both processors have locked multipliers, meaning neither can be overclocked via the multiplier. The part numbers also differ: YM3700C4T4MFG for AMD, SR2AJ for Intel.

Where Each One Wins

The AMD Ryzen 7 3750H is the clear winner in older rendering workloads. Its Cinebench R15 results, both single-core and multi-core, are far ahead of Intel's. The 54.2% multi-core win and the 114.9% single-core win suggest that the Zen+ architecture with its 8 threads is particularly effective in legacy Cinebench tests. The R23 single-core result, where AMD wins by 45.4%, reinforces this pattern. For users running software that scales with thread count in older benchmarks, the AMD chip is the stronger choice.

The Intel Core i5-5675R, on the other hand, wins in more modern workloads. The Cinebench R23 multi-core test shows Intel ahead by 17.7%, and the Geekbench tests show Intel ahead by 7.8% in multi-core and 23% in single-core. This suggests that the Broadwell architecture, despite its age, has optimizations that benefit newer benchmark suites. The higher base clock of 3.10 GHz versus 2.30 GHz may contribute to Intel's strength in these tests, even though its boost clock is lower.

The power envelope favors AMD. The 35 watt TDP of the Ryzen 7 3750H is nearly half of Intel's 65 watt rating. This makes the AMD chip more suitable for thin-and-light laptops, while the Intel chip, being a desktop part, has more thermal headroom but also higher power consumption. The memory support also splits the field: AMD's DDR4 support is more modern than Intel's DDR3, which could matter for system longevity and upgrade paths.

The Verdict

The data presents a nuanced picture. The AMD Ryzen 7 3750H wins three benchmarks, and it wins them by large margins, particularly in Cinebench R15 single-core at 114.9% and multi-core at 54.2%. The Intel Core i5-5675R also wins three benchmarks, but its margins are smaller, ranging from 7.8% to 23%. The average benchmark scores are nearly identical, with AMD at 1690 and Intel at 1648, and both sit at the 40th percentile.

Users who prioritize older Cinebench performance or who need lower power consumption should look to the AMD Ryzen 7 3750H. Its 35 watt TDP, 8 threads, and DDR4 support make it a compelling mobile option. Users who run newer benchmarks or who need higher single-core Geekbench scores should consider the Intel Core i5-5675R, despite its higher 65 watt TDP and DDR3 memory support. The Intel chip's 23% single-core Geekbench lead is notable, as is its 17.7% lead in Cinebench R23 multi-core.

The verdict is not a clean sweep for either side. The AMD chip dominates legacy workloads, while the Intel chip leads in modern ones. The choice depends entirely on the software environment. For a mobile user seeking efficient 8-thread performance, the AMD Ryzen 7 3750H is the data-backed pick. For a desktop user running current benchmark suites, the Intel Core i5-5675R offers measurable advantages. Both processors perform at the same overall percentile, meaning neither is a bad choice; they simply excel in different areas. The recorded data shows a tie in wins, but the margins tell a story of generational trade-offs: AMD's newer architecture wins big in some tests, while Intel's older but higher-clocked design wins consistently in others.