Intel Core i5-4670 vs Intel Core i7-3770T Comparison

FAQ

Q: Which processor has more threads?

A: The Intel Core i7-3770T has 8 threads, while the Intel Core i5-4670 has 4 threads. Both have 4 physical cores.

Q: What are the average benchmark scores for each CPU?

A: The i7-3770T has an average benchmark score of 1314, while the i5-4670 scores 1347. The i5-4670 sits at the 36th percentile of all CPUs, compared to the 35th percentile for the i7-3770T.

Q: Which CPU has a higher boost clock?

A: The i5-4670 boosts to 3.80 GHz, while the i7-3770T boosts to 3.70 GHz. The i5-4670 also has a higher base clock at 3.40 GHz versus 2.50 GHz.

Q: Do both CPUs support the same memory type?

A: Yes, both support DDR3 memory in a dual-channel configuration. Neither supports ECC memory.

Q: Which CPU has a larger L3 cache?

A: The i7-3770T has 8 MB of shared L3 cache, while the i5-4670 has 6 MB of shared L3 cache. Both have the same per-core L1 and L2 cache sizes.

Q: What are the closest rivals to these two CPUs according to the database?

A: The i7-3770T's nearest rival is the AMD Athlon Gold 7220U with an average score of 1311, a 0.2% difference. The i5-4670's nearest rival is the Intel Core i5-7400T with an average score of 1348, a 0.1% difference.

Architecture Differences

The two processors come from different Intel architectures and sockets. The i7-3770T is built on Ivy Bridge and uses the Intel Socket 1155, whereas the i5-4670 is a Haswell part on the Intel Socket 1150. Both are manufactured on the same 22 nm process node at Intel, and both pack 1,400 million transistors. The die sizes differ slightly, with the i7-3770T at 160 mm² and the i5-4670 at 177 mm².

The core topology is where the key split occurs. The i7-3770T features 4 cores and 8 threads, enabling simultaneous multithreading. The i5-4670 has 4 cores and 4 threads, meaning it lacks hyper-threading. This gives the i7-3770T a theoretical advantage in heavily threaded workloads, though the benchmark data does not always reflect that, as discussed later.

Cache hierarchies are similar in the first two levels: both CPUs have 64 KB of L1 cache per core and 256 KB of L2 cache per core. The shared L3 cache differs, with the i7-3770T offering 8 MB versus 6 MB on the i5-4670. That extra 2 MB of L3 could benefit the i7-3770T in cache-sensitive tasks.

Clock speeds favor the i5-4670. Its base clock is 3.40 GHz and boost clock is 3.80 GHz, while the i7-3770T runs at 2.50 GHz base and 3.70 GHz boost. This is a substantial base-clock gap of 0.90 GHz. The power envelope also differs: the i7-3770T has a TDP of 45 watts, while the i5-4670 draws 84 watts. The i7-3770T is clearly the lower-power part.

Integrated graphics differ as well. The i7-3770T includes Intel HD 4000, while the i5-4670 has Intel HD 4600. PCIe support is listed as Gen 3 with 16 lanes on the i7-3770T, while the i5-4670 is simply listed as Gen 3. Neither CPU has an unlocked multiplier. Release dates are separated by about a year: the i7-3770T launched in April 2012, the i5-4670 in June 2013.

The Verdict

The data points to the i5-4670 as the faster processor in every recorded benchmark, despite having fewer threads and less L3 cache. The i5-4670 wins all six head-to-head comparisons, with margins ranging from 0.7% to 1.5%. Its average benchmark score of 1347 also places it ahead of the i7-3770T's 1314. The i5-4670's higher clock speeds appear to overcome the i7-3770T's thread advantage in these Cinebench workloads.

The i7-3770T is not without merit. Its 45-watt TDP makes it a more power-efficient choice, and its 8 threads could theoretically help in workloads that scale with thread count. However, the recorded Cinebench multicore results show the i5-4670 ahead even in multi-threaded tests, which suggests the i7-3770T's lower clocks are a limiting factor.

Users prioritizing raw benchmark performance should choose the i5-4670. Users prioritizing lower power consumption and a larger L3 cache might prefer the i7-3770T, but they should be aware it trails in every measured test. The i5-4670 also has a newer integrated GPU, the HD 4600, versus the HD 4000 in the i7-3770T.

Specification Differences

The two CPUs differ in several key specifications. The i7-3770T has 8 threads, the i5-4670 has 4. Base clocks are 2.50 GHz versus 3.40 GHz, and boost clocks are 3.70 GHz versus 3.80 GHz. TDP is 45 watts for the i7-3770T and 84 watts for the i5-4670.

Sockets differ: the i7-3770T uses Intel Socket 1155, the i5-4670 uses Intel Socket 1150. Architecture and codename differ accordingly, Ivy Bridge versus Haswell. Die size is 160 mm² for the i7-3770T and 177 mm² for the i5-4670.

The L3 cache is 8 MB on the i7-3770T and 6 MB on the i5-4670. Integrated graphics are Intel HD 4000 versus Intel HD 4600. PCIe is listed as Gen 3 with 16 lanes on the i7-3770T, and simply Gen 3 on the i5-4670. Part numbers are SR0PQ for the i7-3770T and SR14D for the i5-4670. Release dates are April 2012 and June 2013, respectively.

Fields where the two match include core count (4 each), L1 cache (64 KB per core), L2 cache (256 KB per core), memory support (DDR3), memory bus (dual-channel), ECC support (false for both), process node (22 nm), foundry (Intel), transistor count (1,400 million), market segment (Desktop), and multiplier lock (not unlocked for either).

Head-to-Head Benchmarks

The head-to-head results are consistent: the i5-4670 wins every test. In Cinebench R15 multicore, the i5-4670 scores 469 against 464 for the i7-3770T, a 1.1% margin. In Cinebench R15 singlecore, the i5-4670 scores 66 versus 65, a 1.5% margin. These are small but consistent wins.

Cinebench R20 multicore shows the i5-4670 at 1957 versus 1936 for the i7-3770T, a 1.1% difference. Cinebench R20 singlecore has the i5-4670 at 275 versus 273, a 0.7% margin. In Cinebench R23 multicore, the i5-4670 scores 4660 against 4611, again a 1.1% difference. Cinebench R23 singlecore shows 657 versus 651, a 0.9% margin.

The largest single margin is the 1.5% win for the i5-4670 in Cinebench R15 singlecore. The smallest is the 0.7% margin in Cinebench R20 singlecore. Across all six tests, the i5-4670 maintains a lead, but never by more than 1.5%. This suggests the performance gap is real but modest.

The i7-3770T's 8 threads do not translate into a multicore win. Even in Cinebench R23 multicore, a test that typically scales with thread count, the i5-4670 stays ahead. The 0.90 GHz base-clock advantage of the i5-4670 appears to be the decisive factor. Its boost clock is also 0.10 GHz higher.

The average benchmark scores reinforce the head-to-head results. The i5-4670 averages 1347, the i7-3770T averages 1314. That is a 33-point gap, or about 2.5% in favor of the i5-4670. The percentile rankings are close, 36th versus 35th, which places both CPUs in similar company across the entire CPU landscape.

Where Each One Wins

The i5-4670 wins in every measured benchmark category. In single-core tests, it leads by 0.7% to 1.5%, reflecting its higher clock speeds. In multi-core tests, it leads by 1.1%, which is notable given that the i7-3770T has twice the thread count. The i5-4670 also has a higher average benchmark score and a higher percentile ranking.

The i7-3770T does not win any recorded benchmark. However, its strengths lie outside the Cinebench results. Its 45-watt TDP is significantly lower than the i5-4670's 84 watts, making it the more power-efficient choice for constrained systems. It also has 2 MB more L3 cache, which could help in workloads that benefit from larger cache pools, though the benchmark data does not show a corresponding performance advantage.

For users building a system around raw compute performance, the i5-4670 is the clear pick. Its wins are consistent across single-core and multi-core tests. For users prioritizing low power draw, the i7-3770T is the better fit, but they must accept slower benchmark results across the board.

The i5-4670 also offers a newer integrated GPU, the HD 4600, compared to the HD 4000 in the i7-3770T. This could matter for systems relying on integrated graphics, although the database does not include iGPU benchmarks. The i5-4670's newer Haswell architecture and higher clocks make it the stronger all-around performer in the recorded data.