Intel Core i7-6700T vs Intel Xeon E3-1270L v4 Comparison

The Intel Core i7-6700T and Intel Xeon E3-1270L v4 are both low-power, four-core, eight-thread Intel processors, but they target different platforms and use different underlying designs. The recorded data shows a consistent performance gap in favor of the Xeon across every shared benchmark, while the Core i7 counters with a broader memory feature set and integrated graphics. This analysis breaks down the benchmark results, architectural differences, and practical use cases based strictly on the database measurements.

Head-to-Head Benchmarks

The head-to-head benchmark data is unambiguous: the Intel Xeon E3-1270L v4 wins all six recorded comparisons. The largest and most consistent margin appears in Cinebench R15, R20, and R23 multi-core tests. In Cinebench R15 multi-core, the Xeon scores 656 against 599 for the Core i7-6700T, a difference of 8.7%. The single-core R15 test shows the same pattern: 92 for the Xeon versus 84 for the Core i7, again an 8.7% gap. This consistency suggests the Xeon’s advantage is not workload-specific but rather a fundamental clock-for-clock or frequency advantage.

Moving to Cinebench R20, the Xeon E3-1270L v4 records 2735 multi-core points, while the Core i7-6700T manages 2496. That is another 8.7% deficit for the Core i7. In single-core R20, the Xeon scores 385 versus 352, a slightly smaller 8.6% gap. The R23 results continue the trend: multi-core 6512 for the Xeon against 5943 for the Core i7, and single-core 919 versus 839, both at 8.7% deltas. Across all six tests, the Xeon’s winning margin hovers tightly between 8.6% and 8.7%, which points to a steady, frequency-driven advantage rather than a cache or architecture quirk that would vary by test.

For context, the Core i7-6700T has an average benchmark score of 1918 and sits at the 43rd percentile among all CPUs. Its nearest rivals include the AMD Ryzen 3 7320U at 1916 (0.1% behind), the Intel Core i3-10305T at 1922 (0.2% ahead), the Intel Xeon E-2314 at 1911 (0.4% behind), and the Intel Xeon E3-1231 v3 at 1925 (0.4% ahead). The Xeon E3-1270L v4 posts an average benchmark score of 1883, also at the 43rd percentile, with nearest rivals being the Intel Xeon E3-1558L v5 at 1882, the Intel Xeon D-1531 at 1885, the Intel Processor U300 at 1881, and the Intel Core i7-4940MX at 1886. Interestingly, despite the Xeon winning every head-to-head test against the Core i7, its overall average score is lower, 1883 versus 1918. This is because the Core i7’s average includes Geekbench results (3906 multi-core, 1128 single-core) that are not part of the Xeon’s recorded benchmark set, so the aggregate metric is not directly comparable between the two.

The takeaway from the head-to-head section is simple: if you are choosing purely on Cinebench rendering performance, the Xeon E3-1270L v4 is the faster part by a nearly uniform 8.7%. The Core i7-6700T does not win a single recorded benchmark in this comparison.

Architecture Differences

Both processors are built on Intel’s 14 nm process node, and both have 4 cores and 8 threads. The similarities end there in several key areas. The Core i7-6700T uses the Skylake architecture, belongs to the Core i7 (Skylake) generation, and fits the Intel Socket 1151. The Xeon E3-1270L v4 uses the Broadwell architecture, specifically Broadwell-DT, and fits the older Intel Socket 1150. This socket difference is critical: the two chips are not interchangeable, and any platform decision must account for the motherboard and memory controller differences that come with each socket.

Cache configuration differs as well. Both have 64 KB of L1 cache per core and 256 KB of L2 cache per core, but the shared L3 cache is larger on the Core i7: 8 MB shared versus 6 MB shared on the Xeon. The Xeon has a recorded die size of 182 mm², while no die size is listed for the Core i7. Neither processor lists a transistor count in the database.

Memory support is a major differentiator. The Core i7-6700T supports both DDR3 and DDR4 memory on a dual-channel bus, with a recorded memory bandwidth of 34.1 GB/s. The Xeon E3-1270L v4 supports only DDR3, also dual-channel, with a lower memory bandwidth of 29.9 GB/s. The Core i7 does not support ECC memory, while the Xeon does. For a workstation or server environment where error-correcting memory is required, the Xeon is the only one of the two that qualifies.

Integrated graphics also separate the pair. The Core i7-6700T includes HD Graphics 530, while the Xeon E3-1270L v4 has no integrated graphics at all. This means the Core i7 can run a display without a discrete GPU, whereas the Xeon requires a separate graphics card for any video output.

Clock speeds favor the Xeon at base frequency: 3.00 GHz for the Xeon versus 2.80 GHz for the Core i7. Both boost to 3.60 GHz. The higher base clock explains the Xeon’s consistent lead in single-threaded and lightly threaded workloads. Power envelopes differ as well: the Core i7-6700T has a 35 W TDP, while the Xeon E3-1270L v4 has a 45 W TDP. The Core i7 is the more power-efficient part on paper, despite the Xeon’s performance lead.

PCIe support is identical on paper: Gen 3 with 16 lanes (CPU only) for both. Neither processor has an unlocked multiplier, so overclocking is not an option for either. The Core i7 was released on 2015-08-31, while the Xeon was released on 2015-06-01, making the Xeon the earlier launch. The Core i7 has a launch MSRP of $303; no launch MSRP is recorded for the Xeon. The Core i7 is marked as end-of-life, while the Xeon’s production status is not listed in the database.

FAQ

Q: Which processor is faster in Cinebench R23 multi-core?

A: The Intel Xeon E3-1270L v4 scores 6512, while the Intel Core i7-6700T scores 5943. The Xeon is 8.7% faster in this test.

Q: Do both processors support ECC memory?

A: No. The Intel Xeon E3-1270L v4 supports ECC memory, while the Intel Core i7-6700T does not.

Q: Can I use the same motherboard for both processors?

A: No. The Core i7-6700T uses Intel Socket 1151, while the Xeon E3-1270L v4 uses Intel Socket 1150.

Q: Which processor has integrated graphics?

A: The Core i7-6700T includes HD Graphics 530. The Xeon E3-1270L v4 has no integrated graphics.

Q: What memory types does each processor support?

A: The Core i7-6700T supports DDR3 and DDR4. The Xeon E3-1270L v4 supports DDR3 only.

Q: How do their base clock speeds compare?

A: The Xeon E3-1270L v4 has a base clock of 3.00 GHz, while the Core i7-6700T has a base clock of 2.80 GHz. Both have a boost clock of 3.60 GHz.

The Verdict

The benchmark data is clear: the Intel Xeon E3-1270L v4 is the faster processor in every recorded head-to-head test. It leads by 8.7% in Cinebench R15, R20, and R23 multi-core, and by 8.6% to 8.7% in single-core tests. The Xeon achieves this with a higher base clock of 3.00 GHz versus 2.80 GHz, at the cost of a higher 45 W TDP versus 35 W, and with 2 MB less shared L3 cache. The Core i7-6700T does not win any benchmark in this comparison.

However, the verdict is not a simple one-sided recommendation. The Core i7-6700T offers features the Xeon cannot match: support for both DDR3 and DDR4 memory, a higher memory bandwidth of 34.1 GB/s, and integrated HD Graphics 530. It also has a larger 8 MB shared L3 cache and a lower TDP. For a system that must run without a discrete GPU, or for a build that wants the flexibility of DDR4 memory, the Core i7 is the only viable choice of the two.

The Xeon E3-1270L v4 is the pick for compute-focused builds where a discrete GPU is already present and where ECC memory is a requirement. Its 45 W TDP is still low for a server-class chip, and its performance advantage is consistent across all rendering workloads. The Xeon also fits the Socket 1150 platform, which is older than the Core i7’s Socket 1151, so platform availability and existing motherboard compatibility may matter as much as raw benchmark scores.

For a buyer choosing between these two specific parts today, the data supports the Xeon if performance is the only criterion. The 8.7% lead in multi-core rendering is meaningful for workloads that scale across threads. If power draw, integrated graphics, or DDR4 support are priorities, the Core i7-6700T counters with those features, though it gives up the performance lead.

Specification Differences

The following specifications differ between the two processors, based on the recorded data:

• Base clock: 2.80 GHz (Core i7-6700T) versus 3.00 GHz (Xeon E3-1270L v4)
• TDP: 35 W (Core i7-6700T) versus 45 W (Xeon E3-1270L v4)
• Socket: Intel Socket 1151 (Core i7-6700T) versus Intel Socket 1150 (Xeon E3-1270L v4)
• Architecture: Skylake (Core i7-6700T) versus Broadwell (Xeon E3-1270L v4)
• Codename: Skylake (Core i7-6700T) versus Broadwell-DT (Xeon E3-1270L v4)
• Generation: Core i7 (Skylake) (Core i7-6700T) versus Xeon E3 (Broadwell-DT) (Xeon E3-1270L v4)
• Die size: not recorded (Core i7-6700T) versus 182 mm² (Xeon E3-1270L v4)
• L3 cache: 8 MB shared (Core i7-6700T) versus 6 MB shared (Xeon E3-1270L v4)
• Memory support: DDR3, DDR4 (Core i7-6700T) versus DDR3 (Xeon E3-1270L v4)
• Memory bandwidth: 34.1 GB/s (Core i7-6700T) versus 29.9 GB/s (Xeon E3-1270L v4)
• ECC memory: false (Core i7-6700T) versus true (Xeon E3-1270L v4)
• Integrated graphics: HD Graphics 530 (Core i7-6700T) versus none (Xeon E3-1270L v4)
• Market segment: Desktop (Core i7-6700T) versus Server/Workstation (Xeon E3-1270L v4)
• Release date: 2015-08-31 (Core i7-6700T) versus 2015-06-01 (Xeon E3-1270L v4)
• Launch MSRP: $303 (Core i7-6700T) versus not recorded (Xeon E3-1270L v4)
• Production status: End-of-life (Core i7-6700T) versus not recorded (Xeon E3-1270L v4)
• Part number: SR2BUSR2L3 (Core i7-6700T) versus SR2AZ (Xeon E3-1270L v4)

Specifications that are identical include: cores, threads, L1 cache per core, L2 cache per core, process node, foundry, memory bus type, PCIe generation and lane count, boost clock, and multiplier lock status.

Where Each One Wins

The Xeon E3-1270L v4 wins in all six recorded benchmarks, so the use-case split follows directly from those results. The Xeon is the pick for multi-core rendering workloads where Cinebench R15, R20, and R23 scores matter most. Its 8.7% lead in multi-core tests across all three Cinebench versions means rendering tasks, video encoding, and threaded productivity will all favor the Xeon. The single-core wins in R15, R20, and R23 also make the Xeon faster in lightly threaded applications, with margins between 8.6% and 8.7%. The Xeon is also the only choice for ECC memory support, so any error-correcting memory requirement points directly to the Xeon.

The Core i7-6700T wins on features rather than performance. It is the only one with integrated graphics, so a build without a discrete GPU points to the Core i7. Its support for DDR4 memory and higher 34.1 GB/s bandwidth makes it the pick for memory-flexible builds. The 35 W TDP versus 45 W means the Core i7 is the lower-power option. The larger 8 MB L3 cache, while not translating to benchmark wins here, gives the Core i7 a cache capacity advantage. For a desktop system on Socket 1151 with DDR4 and no discrete GPU, the Core i7-6700T is the appropriate choice, accepting the 8.7% performance deficit in rendering workloads.

In practical terms, a server or workstation builder with a discrete GPU and ECC RAM requirements should take the Xeon E3-1270L v4. A desktop builder who wants integrated graphics, DDR4 support, and the lowest power draw should take the Core i7-6700T. The data does not support the Core i7 on performance alone, but its feature set covers use cases the Xeon cannot.