Intel Core i3-1315UE vs Intel Core i7-4790T Comparison

The Intel Core i7-4790T and Intel Core i3-1315UE occupy similar positions in the database’s overall performance distribution, both landing at the 41st percentile among all CPUs. Their average benchmark scores are nearly identical, with the i7-4790T at 1755 and the i3-1315UE at 1739, a difference of less than one percent. Yet these two processors are separated by nearly a decade of silicon evolution, one being a desktop part from the Haswell generation and the other a mobile chip from Raptor Lake. The recorded data shows that the newer i3-1315UE wins every single head-to-head benchmark, but the margins are consistently tight, revealing a more nuanced picture than a simple generational gap might suggest.

Head-to-Head Benchmarks

The i3-1315UE takes all six head-to-head victories, but the performance advantage is remarkably uniform across every test. In Cinebench R15 multicore, the i3-1315UE scores 606 against the i7-4790T’s 541, a delta of 10.7 percent. The single-core R15 result follows the same pattern: 85 for the i3-1315UE versus 76 for the i7-4790T, a 10.6 percent gap. Moving to Cinebench R20, the multicore scores are 2525 and 2258, again a 10.6 percent difference. The single-core R20 test shows 356 versus 318, a 10.7 percent gap. Cinebench R23 multicore delivers 6013 for the i3-1315UE and 5378 for the i7-4790T, a 10.6 percent margin, while the single-core R23 result is 849 versus 759, also 10.6 percent.

What stands out is the consistency of these deltas. Every test, whether heavily multi-threaded or purely single-threaded, shows the i3-1315UE ahead by roughly 10.6 to 10.7 percent. This uniformity suggests that the advantage is not workload-specific but rather a fundamental improvement in per-clock performance and architectural efficiency. The i7-4790T does have a higher base clock of 2.70 GHz compared to the i3-1315UE’s 1200.00 MHz, but the newer chip’s boost clock reaches 4.50 GHz, which explains much of the single-threaded superiority. In multicore workloads, the i3-1315UE’s six cores versus four cores provide additional throughput, even though both parts have eight threads.

Interestingly, the i7-4790T’s nearest rivals in the database include the Intel Xeon E3-1241 v3 with an average score of 1756 and a delta of only 0.1 percent, as well as the Intel Core i5-5675C at 1759 and the AMD Ryzen 3 PRO 3200GE at 1750. The i3-1315UE, meanwhile, sits alongside the Intel Core i3-10100 at 1742, the AMD Ryzen 3 4300U at 1742, and the Intel Core i5-6600 at 1744. These rival clusters confirm that both processors are effectively in the same performance tier, despite the i3-1315UE winning every direct comparison. The data does not support a narrative of one chip being dramatically faster; instead, the i3-1315UE is consistently, if modestly, ahead in every measured scenario.

Architecture Differences

The underlying architectures could not be more different. The i7-4790T is built on Intel’s Haswell architecture, fabricated on a 22 nm process node with 1,400 million transistors and a die size of 177 mm². It features four physical cores and eight threads, with a base clock of 2.70 GHz and a boost clock of 3.90 GHz. The i3-1315UE, by contrast, uses the Raptor Lake architecture on a 10 nm node, with six cores and eight threads. Its base clock is listed as 1200.00 MHz, but the boost clock reaches 4.50 GHz, a significant headroom that allows the chip to scale up under load.

Cache configurations also diverge substantially. The i7-4790T has 64 KB of L1 cache per core, 256 KB of L2 per core, and 8 MB of shared L3 cache. The i3-1315UE offers 80 KB of L1 per core, 1.25 MB of L2 per core, and 10 MB of shared L3 cache. The larger per-core L2 cache in the newer chip is particularly notable, as it can reduce latency for frequently accessed data and improve performance in latency-sensitive workloads. The additional 2 MB of L3 cache also helps when multiple cores are active.

Memory support is another clear generational divide. The i7-4790T supports only DDR3 memory, with dual-channel configuration and a memory bandwidth of 25.6 GB/s. The i3-1315UE supports both DDR4 and DDR5, also in dual-channel mode, though the database does not record a specific bandwidth figure for the newer part. This means the i3-1315UE can take advantage of faster memory technologies, which can impact memory-bound applications even if the CPU cores themselves are not the bottleneck.

The integrated graphics differ as well. The i7-4790T pairs with Intel HD 4600, while the i3-1315UE includes UHD Graphics 64EU. The newer iGPU has more execution units, which generally translates to better integrated graphics performance, though the database does not include specific graphics benchmarks for either chip. Both processors lack ECC memory support, and neither has an unlocked multiplier. The i7-4790T uses the Intel Socket 1150, while the i3-1315UE is soldered to BGA 1744, reflecting its mobile design. PCIe capabilities also differ: the i7-4790T offers Gen 3 with 16 lanes from the CPU, whereas the i3-1315UE provides Gen 4 with 8 lanes.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i7-4790T has an average benchmark score of 1755, while the Intel Core i3-1315UE has an average score of 1739. The difference is less than one percent, placing both chips at the 41st percentile among all CPUs.

Q: How large is the performance gap in Cinebench R23 multicore?

A: The i3-1315UE scores 6013 in Cinebench R23 multicore, while the i7-4790T scores 5378. The i3-1315UE is ahead by 10.6 percent in this test.

Q: Does the i7-4790T have more cores than the i3-1315UE?

A: No. The i7-4790T has four cores and eight threads, while the i3-1315UE has six cores and eight threads. The i3-1315UE has more physical cores, but both processors expose the same number of threads.

Q: What memory types does each processor support?

A: The i7-4790T supports DDR3 memory only, with dual-channel configuration and a bandwidth of 25.6 GB/s. The i3-1315UE supports both DDR4 and DDR5 memory, also in dual-channel mode.

Q: Is the i7-4790T still in production?

A: No. The database lists the i7-4790T as end-of-life, while the i3-1315UE is marked as active production status.

Q: Which chip has the higher boost clock?

A: The i3-1315UE has a boost clock of 4.50 GHz, which is higher than the i7-4790T’s boost clock of 3.90 GHz. However, the i7-4790T has a much higher base clock of 2.70 GHz compared to the i3-1315UE’s 1200.00 MHz.

Specification Differences

The two processors differ across nearly every major specification category. The i7-4790T is a desktop part with a TDP of 45 watts, while the i3-1315UE is a mobile chip with a TDP of 15 watts. This makes the i3-1315UE significantly more power-efficient, a critical factor for laptop designs. The i7-4790T uses the Intel Socket 1150, whereas the i3-1315UE is mounted on BGA 1744, which is typically soldered directly to the motherboard.

Core counts differ: four cores for the i7-4790T versus six cores for the i3-1315UE, though both have eight threads. The i7-4790T has a base clock of 2.70 GHz and a boost clock of 3.90 GHz, while the i3-1315UE has a base clock of 1200.00 MHz and a boost clock of 4.50 GHz. The process node is 22 nm for the i7-4790T and 10 nm for the i3-1315UE. The i7-4790T has 1,400 million transistors and a die size of 177 mm², while the database records no transistor count or die size for the i3-1315UE.

Cache hierarchy is also distinct. The i7-4790T offers 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. The i3-1315UE provides 80 KB of L1 per core, 1.25 MB of L2 per core, and 10 MB of shared L3. Memory support moves from DDR3 only on the i7-4790T to DDR4 and DDR5 on the i3-1315UE, with the older chip’s bandwidth recorded at 25.6 GB/s and the newer chip’s bandwidth left unspecified. PCIe generation advances from Gen 3 with 16 lanes on the i7-4790T to Gen 4 with 8 lanes on the i3-1315UE.

Integrated graphics differ as well: Intel HD 4600 on the i7-4790T versus UHD Graphics 64EU on the i3-1315UE. The release dates are far apart, with the i7-4790T launching in April 2014 and the i3-1315UE in January 2023. The i7-4790T is end-of-life, while the i3-1315UE remains active. Neither chip has an unlocked multiplier, and both lack ECC memory support. The i7-4790T has a recorded part number of SR1QS, while the i3-1315UE has no part number listed.

The Verdict

The data points to a clear, if modest, victory for the Intel Core i3-1315UE in every benchmark recorded. It wins all six head-to-head comparisons, with margins ranging from 10.6 to 10.7 percent across both single-core and multicore workloads. The architectural advantages of the newer chip, including a 10 nm process node, six physical cores, larger caches, and support for DDR4 and DDR5 memory, all contribute to this consistent edge. The i3-1315UE also operates at a much lower TDP of 15 watts, making it suitable for mobile platforms where power efficiency is paramount.

The Intel Core i7-4790T, despite being an older design, is not left far behind. Its average benchmark score of 1755 is actually slightly higher than the i3-1315UE’s 1739, a difference of 0.9 percent in the opposite direction of the head-to-head results. This apparent contradiction is explained by the different benchmark sets used for each chip: the i7-4790T includes Geekbench scores in its average, while the i3-1315UE does not. In the direct comparisons available, however, the i3-1315UE is consistently faster.

For users prioritizing raw performance in the specific Cinebench tests recorded, the i3-1315UE is the better choice. It delivers roughly 10 percent more performance across the board, with the added benefits of a more modern architecture, faster memory support, and significantly lower power consumption. For those constrained to desktop platforms with Socket 1150, the i7-4790T remains a capable option, but the data shows it is outclassed by the newer mobile chip in every measured workload. The verdict is straightforward: the i3-1315UE is the faster processor, and its efficiency advantages make it the more compelling part for modern systems.