AMD Ryzen 5 3400G vs Intel Xeon E3-1270 v5 Comparison

The AMD Ryzen 5 3400G and Intel Xeon E3-1270 v5 are both 4-core, 8-thread processors, but they target entirely different segments of the market. The Ryzen is a desktop APU with integrated graphics and a modern process node, while the Xeon is a server/workstation part with ECC memory support and an older design. Benchmark data shows a clear performance hierarchy between the two, with the Ryzen 5 3400G dominating every head-to-head comparison, though the Xeon still holds relevance in specific professional environments.

Head-to-Head Benchmarks

The Ryzen 5 3400G sweeps the entire head-to-head benchmark suite, winning all six comparisons with a consistent margin. In Cinebench R15 multi-core, the Ryzen scores 789 against the Xeon’s 713, a 10.7% advantage. The single-core R15 test shows a similar gap, with the Ryzen at 111 and the Xeon at 100, translating to an 11% win. This consistency across both single-threaded and multi-threaded workloads indicates that the Ryzen’s architectural efficiency is not limited to one type of task.

Moving to Cinebench R20, the pattern holds. The Ryzen 5 3400G posts 3290 in multi-core versus the Xeon’s 2974, another 10.6% lead. In single-core R20, the scores are 464 and 419 respectively, a 10.7% difference. The latest Cinebench R23 test reinforces the trend: the Ryzen scores 7835 multi-core and 1106 single-core, while the Xeon manages 7082 and 999. The deltaPct for each R23 comparison is 10.6% and 10.7%, respectively.

The data shows a uniform performance advantage for the AMD part across every generation of Cinebench. The Ryzen 5 3400G’s average benchmark score of 2059 places it in the 46th percentile of all CPUs, with nearest rivals including the Intel Core i3-10105T at 2058 and the AMD Ryzen 3 3100 at 2055. The Xeon E3-1270 v5’s average score of 2048 also lands in the 46th percentile, with its closest competitor being the Intel Core i7-7820HK at 2048. Despite the similar average scores, the direct head-to-head results are unambiguous: the Ryzen 5 3400G outperforms the Xeon E3-1270 v5 in every measured workload, with margins ranging from 10.6% to 11%.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 5 3400G is built on the Zen+ architecture, codenamed Picasso, using a 12 nm process node from GlobalFoundries. It packs 4,940 million transistors into a 210 mm² die. In contrast, the Intel Xeon E3-1270 v5 uses the Skylake architecture, codenamed Skylake-DT, fabricated on Intel’s 14 nm node. The Xeon has 1,750 million transistors on a significantly smaller 122 mm² die.

Cache configurations differ notably. The Ryzen 5 3400G features 96 KB of L1 cache per core and 512 KB of L2 per core, with 4 MB of shared L3 cache. The Xeon E3-1270 v5 has smaller per-core caches: 64 KB L1 and 256 KB L2, but compensates with a larger 8 MB shared L3 cache. This means the Xeon has double the L3 capacity, which can benefit certain server workloads with larger working sets.

Memory support is another major divergence. The Ryzen 5 3400G supports DDR4 memory only, with a dual-channel bus and a maximum bandwidth of 46.9 GB/s. It does not support ECC memory. The Xeon E3-1270 v5 supports both DDR3 and DDR4, also dual-channel, but with a lower peak bandwidth of 34.1 GB/s. Crucially, the Xeon supports ECC memory, a feature absent from the AMD part and essential for error-sensitive server and workstation environments.

The integrated graphics situation is starkly different. The Ryzen 5 3400G includes Radeon RX Vega 11 integrated graphics, making it a complete APU solution. The Xeon E3-1270 v5 has no integrated graphics at all, requiring a discrete GPU for any display output. The Ryzen also has an unlocked multiplier for overclocking, while the Xeon’s multiplier is locked. Both use PCIe Gen 3, but the Xeon specifies 16 lanes (CPU only), while the Ryzen’s lane count is not detailed in the data.

Where Each One Wins

The Ryzen 5 3400G wins in every benchmark category where the two are directly compared. Its consistent 10.6-11% lead across single-core and multi-core Cinebench tests makes it the clear choice for general desktop productivity, content creation, and any workload that benefits from higher clock speeds and modern IPC. The Ryzen’s base clock of 3.70 GHz and boost clock of 4.20 GHz are both higher than the Xeon’s 3.60 GHz base and 4.00 GHz boost, which contributes to its performance edge.

The Xeon E3-1270 v5, despite losing all head-to-head comparisons, has specific advantages that are not captured in Cinebench scores. Its support for ECC memory is a critical feature for servers and workstations where data integrity is paramount. The larger 8 MB L3 cache, compared to the Ryzen’s 4 MB, may also provide benefits in cache-sensitive server workloads, though this is not reflected in the available benchmark data. The Xeon’s support for both DDR3 and DDR4 memory gives it flexibility in legacy or cost-constrained systems.

The Ryzen 5 3400G’s integrated Radeon RX Vega 11 graphics is a decisive win for systems without a discrete GPU. This makes it suitable for budget desktop builds, HTPCs, and office machines where a separate graphics card is unnecessary. The Xeon, with no integrated graphics, is fundamentally unsuitable for such use cases. The Ryzen’s unlocked multiplier also appeals to enthusiasts, while the Xeon’s locked multiplier aligns with server stability requirements. The Xeon’s market segment is explicitly listed as Server/Workstation, and its production status is End-of-life, whereas the Ryzen is still Active.

FAQ

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

A: The AMD Ryzen 5 3400G is faster in every multi-core test. In Cinebench R23 multi-core, it scores 7835 versus the Xeon E3-1270 v5’s 7082, a 10.6% advantage. The same pattern appears in Cinebench R20 (3290 vs 2974) and R15 (789 vs 713).

Q: Does the Intel Xeon E3-1270 v5 support ECC memory?

A: Yes, the Xeon E3-1270 v5 supports ECC memory. The AMD Ryzen 5 3400G does not. This makes the Xeon suitable for servers and workstations where error-correcting memory is required.

Q: Which CPU has integrated graphics?

A: The AMD Ryzen 5 3400G features Radeon RX Vega 11 integrated graphics. The Intel Xeon E3-1270 v5 has no integrated graphics and requires a discrete GPU for display output.

Q: What are the process node differences?

A: The Ryzen 5 3400G is built on a 12 nm process from GlobalFoundries, while the Xeon E3-1270 v5 uses Intel’s 14 nm process. The Ryzen has 4,940 million transistors on a 210 mm² die; the Xeon has 1,750 million on a 122 mm² die.

Q: How do their clock speeds compare?

A: The Ryzen 5 3400G has a base clock of 3.70 GHz and a boost clock of 4.20 GHz. The Xeon E3-1270 v5 has a base clock of 3.60 GHz and a boost clock of 4.00 GHz. The Ryzen’s higher clocks contribute to its benchmark lead.

Q: What is the market positioning of each?

A: The Ryzen 5 3400G is a Desktop processor from the 3000 series, with an unlocked multiplier and an Active production status. The Xeon E3-1270 v5 is a Server/Workstation processor, with a locked multiplier and End-of-life production status.

Specification Differences

The two processors differ in several key specifications. The Ryzen 5 3400G uses the AMD Socket AM4, while the Xeon E3-1270 v5 uses Intel Socket 1151. The Ryzen has a TDP of 65 watts, whereas the Xeon has a higher TDP of 80 watts. The Ryzen’s architecture is Zen+ (Picasso), and the Xeon’s is Skylake (Skylake-DT). The process node is 12 nm for the AMD part and 14 nm for the Intel part.

Cache sizes differ significantly: the Ryzen has 96 KB L1 and 512 KB L2 per core, with 4 MB shared L3; the Xeon has 64 KB L1 and 256 KB L2 per core, with 8 MB shared L3. Memory support diverges, with the Ryzen supporting DDR4 only and the Xeon supporting both DDR3 and DDR4. Memory bandwidth is higher on the Ryzen at 46.9 GB/s versus 34.1 GB/s on the Xeon. The Ryzen does not support ECC, while the Xeon does.

Integrated graphics are present on the Ryzen (Radeon RX Vega 11) and absent on the Xeon. The multiplier is unlocked on the Ryzen and locked on the Xeon. The release dates are 2019-07-06 for the Ryzen and 2015-10-18 for the Xeon. The Ryzen has a launch MSRP of $149, while the Xeon has a launch MSRP of $339. The Ryzen is still Active in production, while the Xeon is End-of-life.