AMD Ryzen 5 3400G vs Intel Core i7-5775R Comparison

Head-to-Head Benchmarks

The recorded head-to-head data splits sharply along benchmark family lines. In all six Cinebench tests, the AMD Ryzen 5 3400G posts decisive wins, while the Intel Core i7-5775R takes both Geekbench tests. The margin in Cinebench is remarkably consistent, with the AMD part leading by 23.1% to 23.4% across every iteration. In Cinebench R15 multi-core, the scores are 789 versus 641, a 23.1% advantage. The single-core R15 result shows 111 versus 90, a 23.3% edge. Moving to R20 multi-core, the gap is 3290 versus 2671, again 23.2%, and R20 single-core shows 464 versus 376, a 23.4% lead. The newest R23 test continues the pattern: multi-core 7835 versus 6360 (23.2%) and single-core 1106 versus 897 (23.3%). These are substantial, uniform margins that indicate a consistent architectural efficiency advantage for the AMD chip in rendering workloads.

The Geekbench results reverse the picture. In multi-core, the Intel part scores 3996 against AMD's 3731, a 6.6% lead. Single-core Geekbench shows 1218 versus 1101, a 9.6% advantage for Intel. The delta is smaller in magnitude than the Cinebench gaps, but it is consistent across both Geekbench tests. The overall win tally stands at 6 for AMD and 2 for Intel. The average benchmark score for the Ryzen 5 3400G is 2059, placing it at the 46th percentile of all CPUs, while the Core i7-5775R averages 2031, at the 45th percentile. The two processors are near-neighbors in the overall database ranking, separated by less than 1.5% in average score, even though their per-test behavior diverges sharply.

Architecture Differences

The two CPUs come from different manufacturing eras and design philosophies. The AMD Ryzen 5 3400G is built on a 12 nm process at GlobalFoundries, with a die size of 210 mm² and 4,940 million transistors. Its architecture is Zen+, codenamed Picasso, part of the 3000 series. It uses 4 cores and 8 threads, with a base clock of 3.70 GHz and a boost clock of 4.20 GHz. The cache hierarchy consists of 96 KB of L1 per core, 512 KB of L2 per core, and 4 MB of shared L3. Memory support is DDR4 over a dual-channel bus, delivering 46.9 GB/s of bandwidth. It runs on AMD Socket AM4 and supports PCIe Gen 3. The integrated graphics is Radeon RX Vega 11.

The Intel Core i7-5775R uses a 14 nm process at Intel, with a die size of 182 mm². Its architecture is Broadwell, also the codename, and it belongs to the Core i7 generation. It also has 4 cores and 8 threads, but with a lower base clock of 3.30 GHz and a boost clock of 3.80 GHz. Cache sizes are smaller per core: 64 KB of L1 and 256 KB of L2, but the shared L3 is larger at 6 MB. Memory support is DDR3 over dual-channel, with 29.9 GB/s bandwidth. The socket is Intel BGA 1364, and PCIe is Gen 3 with 16 lanes (CPU only). Integrated graphics is Iris Pro Graphics 6200.

The node difference (12 nm versus 14 nm) does not translate into a clock advantage for AMD alone; the boost clocks differ by 0.40 GHz in AMD's favor. The larger L3 on Intel (6 MB versus 4 MB) may help in some workloads, but the data shows it does not overcome AMD's clock and memory bandwidth advantages in Cinebench. The memory interface is a major split: DDR4 at 46.9 GB/s versus DDR3 at 29.9 GB/s, a 57% bandwidth difference. The AMD part has a higher transistor count (4,940 million versus no listed figure for Intel) and a larger die, suggesting a more complex integrated graphics unit. The Ryzen 5 3400G has an unlocked multiplier, while the Core i7-5775R does not. Production status also differs: AMD's chip is Active, Intel's is End-of-life.

Where Each One Wins

The benchmark splits align with workload type. The AMD Ryzen 5 3400G dominates all Cinebench tests, which are heavily threaded rendering workloads. The consistent 23% margins across R15, R20, and R23, both single and multi-core, indicate that the Zen+ architecture handles these specific compute patterns far better. The higher boost clock (4.20 GHz versus 3.80 GHz) and the much faster memory bandwidth (46.9 GB/s versus 29.9 GB/s) are likely contributors. For users running Cinebench-style rendering, video encoding, or any workload that scales with raw FPU throughput, the data shows a clear AMD advantage.

The Intel Core i7-5775R wins in Geekbench, which is a more mixed workload test covering integer, floating-point, memory, and cryptography patterns. The 6.6% multi-core and 9.6% single-core leads suggest that its larger 6 MB L3 cache and possibly more efficient memory access patterns for certain algorithms give it an edge in general-purpose computing tasks. For everyday application responsiveness, office productivity, or single-threaded legacy software, the Intel part holds a measurable but modest advantage.

The overall average scores (2059 versus 2031) are close, but the distribution is not. The Ryzen 5 3400G is the better choice for compute-heavy, parallel rendering tasks; the Core i7-5775R is better for balanced general-purpose workloads that resemble Geekbench's mix. The AMD chip's 46th percentile versus Intel's 45th percentile is nearly a tie in the grand database ranking, but the per-test deltas are far from a tie.

Specification Differences

The two CPUs differ on nearly every major specification except core count, thread count, TDP, and market segment.

• Process node: AMD 12 nm, Intel 14 nm.
• Foundry: GlobalFoundries versus Intel.
• Die size: 210 mm² versus 182 mm².
• Transistor count: 4,940 million versus not listed for Intel.
• Base clock: 3.70 GHz versus 3.30 GHz.
• Boost clock: 4.20 GHz versus 3.80 GHz.
• L1 cache: 96 KB per core versus 64 KB per core.
• L2 cache: 512 KB per core versus 256 KB per core.
• L3 cache: 4 MB shared versus 6 MB shared.
• Memory type: DDR4 versus DDR3.
• Memory bandwidth: 46.9 GB/s versus 29.9 GB/s.
• Socket: AMD Socket AM4 versus Intel BGA 1364.
• Integrated graphics: Radeon RX Vega 11 versus Iris Pro Graphics 6200.
• Multiplier unlocked: true versus false.
• Production status: Active versus End-of-life.
• Release date: 2019-07-06 versus 2015-05-14.
• Launch MSRP: $149 versus $384.
• Part number: YD3400C5M4MFH / YD3400C5FHBOX versus SR2AL.
• ECC memory: false for both.
• PCIe: Gen 3 for both, but Intel lists 16 lanes (CPU only), AMD does not specify lane count.

The clocks, cache distribution, memory generation, and socket are all different. The TDP is identical at 65 watts. Both are dual-channel and desktop parts.

FAQ

Q: Which CPU has the higher boost clock?

A: The AMD Ryzen 5 3400G boosts to 4.20 GHz, while the Intel Core i7-5775R boosts to 3.80 GHz.

Q: In which benchmark does the Intel chip have its largest win?

A: The largest Intel win is in Geekbench single-core, where it scores 1218 versus 1101, a 9.6% lead.

Q: What is the memory bandwidth difference?

A: The AMD part supports DDR4 with 46.9 GB/s, while the Intel part supports DDR3 with 29.9 GB/s, a 57% higher figure for AMD.

Q: How many cores and threads do both CPUs have?

A: Both have 4 cores and 8 threads, with a 65 watt TDP.

Q: What is the average benchmark score for each?

A: The AMD Ryzen 5 3400G averages 2059, and the Intel Core i7-5775R averages 2031.

Q: Which CPU is still in production?

A: The AMD Ryzen 5 3400G is listed as Active, while the Intel Core i7-5775R is End-of-life.

Q: What is the L3 cache difference?

A: The Intel chip has 6 MB of shared L3, while the AMD chip has 4 MB of shared L3.

The Verdict

The data supports a clear division. The AMD Ryzen 5 3400G is the stronger processor for Cinebench-class rendering workloads, winning all six head-to-head tests by roughly 23%. Its higher clocks, faster DDR4 memory, and larger L2 cache per core deliver a consistent advantage in compute-heavy, floating-point intensive tasks. Its active production status and lower launch MSRP of $149 versus $384 further distinguish it as a current-generation part with ongoing availability.

The Intel Core i7-5775R, despite being end-of-life and using older DDR3, wins in Geekbench by 6.6% to 9.6%. Its larger 6 MB L3 cache appears to benefit mixed general-purpose workloads. For users running legacy software, office suites, or applications whose performance correlates with Geekbench scores, the Intel chip holds a measurable edge. However, its BGA 1364 socket is not upgradeable, and its launch MSRP was significantly higher.

The database places both CPUs within one percentile of each other, so neither is an outright dominant product. The choice depends strictly on workload: rendering and threaded compute favors AMD, balanced general-purpose tasks favor Intel. Given the AMD part's active status, higher average score (2059 versus 2031), and wider benchmark win margin, the Ryzen 5 3400G is the more compelling pick for most modern compute scenarios, while the Core i7-5775R remains a niche option for specific Geekbench-pattern tasks.