AMD Ryzen 5 3400GE vs Intel Core i7-5775C Comparison

The Intel Core i7-5775C and AMD Ryzen 5 3400GE are both 4-core, 8-thread desktop processors aimed at compact or lower-power systems, yet they represent vastly different design eras. The Intel chip is a Broadwell part from 2015 with a 65 W TDP, while the AMD chip is a Zen+ Picasso part from 2019 with a 35 W TDP. Benchmark results are decisive: the Ryzen 5 3400GE wins every single head-to-head test, though the margins are consistent and moderate rather than overwhelming.

Head-to-Head Benchmarks

The data shows a clean sweep for the AMD Ryzen 5 3400GE across all six Cinebench comparisons. In the multi-core tests, the AMD part scores 757 in Cinebench R15 versus 660 for the Intel Core i7-5775C, a 12.8% advantage. That pattern repeats in Cinebench R20, with the Ryzen scoring 3158 against 2750, and again in Cinebench R23, with 7520 versus 6549. The deltas are nearly identical across all three multi-core tests, hovering between 12.8% and 12.9%. This consistency suggests the performance gap is structural — driven by architectural and clock differences — rather than workload-specific.

Single-core results tell the same story. The Ryzen 5 3400GE scores 106 in Cinebench R15 single-core versus 93 for the Intel, a 12.3% lead. In Cinebench R20, the AMD chip posts 445 against 388, and in R23 it reaches 1061 versus 924. The single-core deltas range from 12.3% to 12.9%, closely mirroring the multi-core margins. This is notable because single-core performance typically reflects clock speed and IPC more directly, and here the AMD part’s higher boost clock of 4.00 GHz against 3.70 GHz for Intel appears to translate into a uniform advantage.

There are no benchmark categories where the Intel Core i7-5775C comes out ahead. The Ryzen part wins 6 out of 6 head-to-head comparisons. However, the magnitude of the victory is not dramatic — roughly 13% across the board. In terms of overall standing, both processors sit at the 47th percentile among all CPUs, and their average benchmark scores are close: 2224 for the Intel chip and 2175 for the AMD chip. The head-to-head tests show a clear winner, but the broader benchmark picture places them in the same performance tier.

Architecture Differences

The two processors diverge fundamentally in their underlying design. The Intel Core i7-5775C uses the Broadwell architecture on a 14 nm process from Intel, with a die size of 182 mm². The AMD Ryzen 5 3400GE uses the Zen+ architecture, built on a 12 nm process from GlobalFoundries, with a die size of 210 mm² and 4,940 million transistors. The AMD chip is physically larger and packs more transistors, which correlates with its more modern design.

Cache configurations differ notably. The Intel part has 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. The AMD part has 96 KB of L1 per core, 512 KB of L2 per core, but only 4 MB of shared L3. The AMD chip wins on L1 and L2 capacity per core, while the Intel chip has 50% more L3 cache. This trade-off means the Intel part relies more on a larger shared cache, while the AMD part favors faster per-core caches.

Memory support is another clear differentiator. The Intel Core i7-5775C uses DDR3 memory over a dual-channel bus, delivering 25.6 GB/s of bandwidth. The AMD Ryzen 5 3400GE uses DDR4 over a dual-channel bus, delivering 46.9 GB/s — an 83% increase in theoretical memory bandwidth. Neither chip supports ECC memory. The AMD part’s higher bandwidth is significant for integrated graphics and memory-bound workloads.

The platform and connectivity also differ. The Intel chip uses Socket 1150 with PCIe Gen 3 at 16 lanes from the CPU. The AMD chip uses Socket AM4 with PCIe Gen 3, though the lane count is not specified in the data. Both processors have unlocked multipliers, and both integrate graphics — Intel’s Iris Pro Graphics 6200 versus AMD’s Radeon RX Vega 11. The AMD part also has a much lower TDP at 35 W versus 65 W for Intel, despite running a higher boost clock.

The Verdict

From the benchmark data alone, the AMD Ryzen 5 3400GE is the superior processor. It wins every head-to-head Cinebench test by roughly 13%, whether single-core or multi-core. The AMD chip also offers nearly double the memory bandwidth, a more advanced 12 nm process, and a significantly lower TDP of 35 W versus 65 W. For any workload measured by Cinebench, the Ryzen part is the clear choice.

That said, the Intel Core i7-5775C is not without its merits. It has a larger L3 cache at 6 MB versus 4 MB, which could benefit certain cache-sensitive workloads not captured by Cinebench. It also has a higher average benchmark score of 2224 versus 2175 for the AMD part, despite losing all head-to-head tests. This discrepancy suggests that other benchmarks beyond Cinebench may favor the Intel chip, though the data provided does not specify which tests contribute to that higher average.

The Intel chip’s launch MSRP is $366, but the AMD part has no listed launch MSRP, so no direct price comparison is possible. For a buyer prioritizing raw Cinebench performance, lower power consumption, and modern memory support, the AMD Ryzen 5 3400GE is the data-backed recommendation. For a buyer who values larger L3 cache or the specific Intel platform, the i7-5775C remains a viable option, but the benchmark evidence favors AMD.

Specification Differences

The two processors differ in several key specification fields. The most obvious is TDP: the Intel Core i7-5775C draws 65 W, while the AMD Ryzen 5 3400GE draws 35 W. Boost clocks differ as well, with Intel at 3.70 GHz and AMD at 4.00 GHz; base clocks are identical at 3.30 GHz. The process node favors AMD at 12 nm versus Intel’s 14 nm, and the foundry differs — Intel for the i7, GlobalFoundries for the Ryzen. Die size is 182 mm² for Intel and 210 mm² for AMD, with the AMD part listing 4,940 million transistors while Intel lists none.

Cache layouts are distinct: Intel has 64 KB L1 and 256 KB L2 per core with 6 MB shared L3, while AMD has 96 KB L1 and 512 KB L2 per core with 4 MB shared L3. Memory support splits by generation, with Intel using DDR3 (25.6 GB/s bandwidth) and AMD using DDR4 (46.9 GB/s). Sockets are incompatible, with Intel on Socket 1150 and AMD on Socket AM4. Integrated graphics differ as Iris Pro Graphics 6200 versus Radeon RX Vega 11. The release dates are 2015-05-14 for Intel and 2019-07-06 for AMD. The Intel part has a launch MSRP of $366; the AMD part has none listed.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 5 3400GE has a boost clock of 4.00 GHz, while the Intel Core i7-5775C has a boost clock of 3.70 GHz. Both have a base clock of 3.30 GHz.

Q: How much faster is the AMD chip in multi-core Cinebench R23?

A: The AMD Ryzen 5 3400GE scores 7520 in Cinebench R23 multi-core, which is 12.9% ahead of the Intel Core i7-5775C’s score of 6549.

Q: Do both processors support ECC memory?

A: No. Neither the Intel Core i7-5775C nor the AMD Ryzen 5 3400GE supports ECC memory, according to the data.

Q: Which processor has more L3 cache?

A: The Intel Core i7-5775C has 6 MB of shared L3 cache, while the AMD Ryzen 5 3400GE has 4 MB of shared L3 cache.

Q: What is the TDP difference between the two?

A: The Intel Core i7-5775C has a TDP of 65 W, while the AMD Ryzen 5 3400GE has a TDP of 35 W — a 30 W difference favoring the AMD part for lower power consumption.

Q: Which processor has a higher average benchmark score?

A: The Intel Core i7-5775C has an average benchmark score of 2224, while the AMD Ryzen 5 3400GE has an average benchmark score of 2175. This is despite the AMD chip winning all head-to-head Cinebench tests.

Where Each One Wins

The AMD Ryzen 5 3400GE wins in every measured benchmark category. It is ahead by 12.8% in Cinebench R15 multi-core and 12.3% in single-core. It leads by 12.9% in Cinebench R20 multi-core and 12.8% in single-core. In Cinebench R23, it wins by 12.9% in both multi-core and single-core tests. The AMD part also wins on memory bandwidth with 46.9 GB/s versus 25.6 GB/s, on process efficiency with a 12 nm node versus 14 nm, and on power draw with a 35 W TDP versus 65 W. Its higher boost clock of 4.00 GHz gives it a consistent edge in single-threaded tasks.

The Intel Core i7-5775C wins on raw cache capacity, offering 6 MB of L3 versus 4 MB, which could benefit workloads that rely heavily on shared cache. It also has a higher average benchmark score of 2224 versus 2175, suggesting that in benchmarks not listed in the head-to-head table, the Intel part may perform better. The Intel chip is also the only one with a listed launch MSRP of $366, though the AMD part has no comparable figure. For users on the Intel Socket 1150 platform, the i7-5775C is the only option of the two. For all Cinebench-based performance, the AMD Ryzen 5 3400GE is the clear winner, but the Intel part retains advantages in cache size and overall average score that could matter in unmeasured scenarios.