Intel Core i7-7740X vs Intel Core i7-9700T Comparison

The Intel Core i7-9700T and Intel Core i7-7740X are two desktop processors that take fundamentally different approaches to achieving performance, and the benchmark data reflects this divergence clearly. The 9700T, an 8-core, 8-thread Coffee Lake Refresh part with a 35W TDP, wins the majority of the head-to-head comparisons, while the 7740X, a 4-core, 8-thread Kaby Lake-X part with a 112W TDP, claims a single, decisive victory in one specific workload. The overall picture is one of a multi-core specialist edging out a high-clock-speed contender, with the data showing a narrow but consistent margin for the 9700T across most tests.

Head-to-Head Benchmarks

The most striking result in the entire comparison is the Geekbench single-core test, where the Intel Core i7-7740X wins with a score of 1619 against the 9700T’s 1392. This is a 14% deltaPct in favor of the 7740X, making it the only test where the Kaby Lake-X part is ahead, and by a substantial margin. This outcome is directly attributable to the 7740X’s significantly higher clock speeds, which are the dominant factor in single-threaded performance. The 9700T’s boost clock of 4.30 GHz simply cannot match the 7740X’s 4.60 GHz boost, and this 300 MHz gap translates into a clear advantage in this specific metric.

However, the 9700T turns the tables decisively in the Geekbench multicore test. Here, the 9700T scores 5503, while the 7740X manages 5246. This 4.9% deltaPct is the largest margin of victory for the 9700T in any benchmark, and it highlights the benefit of having double the physical cores (8 vs 4) when the workload can utilize them. The 9700T’s 8 cores, even at lower clock speeds, are able to outpace the 7740X’s 4 higher-clocked cores in a parallel workload, demonstrating that core count can be a more powerful lever than raw frequency in multi-threaded scenarios.

The Cinebench results paint a similar, albeit tighter, picture. Across all three versions of the Cinebench test (R15, R20, and R23), the 9700T wins both the multicore and singlecore iterations. In the multicore tests, the margins are slim but consistent: a 1% deltaPct in R15 (839 vs 831), a 0.9% deltaPct in R20 (3496 vs 3465), and a 0.9% deltaPct in R23 (8325 vs 8250). These are not large wins, but they are uniform, indicating that the 9700T’s architectural advantage in core count provides a steady, if modest, lead in rendering workloads.

Even in the Cinebench singlecore tests, the 9700T manages to eke out wins, despite the 7740X’s higher clock speed. The 9700T scores 118 vs 117 in R15 (0.9% deltaPct), 493 vs 488 in R20 (1% deltaPct), and 1175 vs 1164 in R23 (0.9% deltaPct). These results are surprising given the 7740X’s clock advantage, but the data is consistent across all three versions. It suggests that the 9700T’s Coffee Lake architecture is more efficient at executing instructions per clock, allowing it to overcome the raw frequency deficit in single-threaded tasks, even if the Geekbench singlecore test tells a different story.

Overall, the head-to-head data shows the 9700T winning 7 out of 8 benchmarks. The only loss is the Geekbench singlecore test, but that loss is a heavy one at 14%. The wins, by contrast, are mostly small, ranging from 0.9% to 4.9%. This pattern indicates that the 9700T is the more consistent performer, while the 7740X has a specific strength that it can leverage in certain applications.

Where Each One Wins

Based on the benchmark results, the Intel Core i7-9700T is the clear winner for any workload that can utilize multiple cores. The Geekbench multicore test shows its largest advantage at 4.9%, and the Cinebench multicore tests all show positive, if smaller, margins. This makes the 9700T the better choice for tasks like video rendering, 3D modeling, and software compilation, where the 8-core count can be fully exploited. The data also shows that the 9700T holds its own in single-threaded tasks, winning the Cinebench singlecore tests by roughly 1%, which suggests it is not a significant compromise in everyday responsiveness.

The Intel Core i7-7740X, on the other hand, has a single, clear domain of superiority: the Geekbench singlecore benchmark. With a 14% lead over the 9700T, this is a substantial advantage that cannot be ignored for applications that are heavily dependent on single-threaded performance. This includes legacy software, certain types of simulation, and some games that are not well-optimized for multi-core processors. The 7740X’s higher base clock of 4.30 GHz and boost clock of 4.60 GHz are the key factors here, and the data shows that this clock speed advantage translates directly into a performance lead in this specific test.

It is important to note that the 7740X’s win is isolated. In every other benchmark, including the Cinebench singlecore tests, the 9700T is ahead. This means that the 7740X is a niche product, best suited for users who know their primary applications are strictly single-threaded. For a general-purpose desktop processor, the 9700T’s balanced profile of multi-core strength and competitive single-core performance makes it the more versatile option, as evidenced by its 7-1 win record in the head-to-head comparison.

Architecture Differences

The two processors come from different architectural families and are built for different platforms. The Intel Core i7-9700T is based on the Coffee Lake architecture, specifically the Coffee Lake Refresh generation, and fits the Intel Socket 1151. It is manufactured on a 14 nm process node by Intel, with a die size of 180.3 mm². The 7740X, conversely, is based on the older Kaby Lake architecture, specifically the Kaby Lake-X variant, and uses the Intel Socket 2066. It is also on a 14 nm process node, but its die size is not listed in the data.

The most significant architectural difference is the core and thread configuration. The 9700T has 8 cores and 8 threads, meaning it does not support Hyper-Threading. The 7740X has 4 cores and 8 threads, utilizing Hyper-Threading to double its thread count. This means the 9700T has double the physical cores, while the 7740X relies on logical threads to approach similar multi-threaded performance. The cache configuration also differs: the 9700T has a larger 12 MB shared L3 cache, while the 7740X has a smaller 8 MB shared L3 cache. Both have the same per-core L1 and L2 cache sizes of 64 KB and 256 KB, respectively.

Clock speeds are another major differentiator. The 9700T has a base clock of 2000 MHz and a boost clock of 4.30 GHz, which are relatively low, especially the base clock. The 7740X has a much higher base clock of 4.30 GHz and a boost clock of 4.60 GHz. This explains the 7740X’s advantage in the Geekbench singlecore test. The TDP figures are starkly different as well: the 9700T is rated at 35W, while the 7740X is rated at 112W. This makes the 9700T a much more power-efficient part, likely designed for systems with limited cooling or power budgets.

Memory support also differs. Both support DDR4, but the 9700T uses a dual-channel memory bus with a listed memory bandwidth of 42.7 GB/s, while the 7740X uses a quad-channel memory bus, though its memory bandwidth is not listed. The 9700T also includes integrated graphics in the form of UHD Graphics 630, whereas the 7740X has no integrated graphics, requiring a discrete GPU at all times. The 9700T’s PCIe implementation is listed as Gen 3 with 16 lanes (CPU only), while the 7740X is simply listed as Gen 3.

The Verdict

The benchmark data presents a clear verdict: the Intel Core i7-9700T is the superior processor for the vast majority of use cases. It wins 7 out of 8 head-to-head benchmarks, including all three Cinebench multicore tests and all three Cinebench singlecore tests. Its 4.9% lead in Geekbench multicore is the largest margin of victory in the entire comparison, and its consistent, if narrow, wins in the Cinebench suite demonstrate that it is a more balanced and reliable performer. The 9700T’s 8 physical cores provide a solid foundation for modern multi-threaded workloads, and its single-core performance is competitive, despite the 7740X’s higher clock speeds.

The Intel Core i7-7740X should only be chosen by users who have a specific, critical need for maximum single-threaded performance, as measured by the Geekbench singlecore test. Its 14% lead in that one benchmark is substantial, but it comes at the cost of losing every other comparison. The 7740X’s 4 cores and 8 threads are not enough to match the 9700T in multi-threaded tasks, and its lack of integrated graphics and higher TDP of 112W make it a less practical choice for a general-purpose system. The data does not support choosing the 7740X for anything other than a narrowly focused, single-threaded application.

For a user building a desktop PC for a mix of productivity, content creation, and general use, the 9700T is the clear pick. Its benchmark results show it is ahead in the workloads that matter most for these tasks, and its 35W TDP and integrated graphics make it a more flexible and efficient component. The 7740X, with its single win, is a specialized tool for a specialized job, and the data shows that the 9700T is the better all-rounder.

FAQ

Q: Which processor has a higher single-core Geekbench score?

A: The Intel Core i7-7740X has a significantly higher single-core Geekbench score of 1619, compared to the Intel Core i7-9700T’s 1392, a 14% deltaPct in favor of the 7740X.

Q: How many physical cores does each processor have?

A: The Intel Core i7-9700T has 8 physical cores, while the Intel Core i7-7740X has 4 physical cores. Both have 8 threads, with the 7740X using Hyper-Threading to achieve this.

Q: What is the TDP difference between the two processors?

A: The Intel Core i7-9700T has a TDP of 35W, while the Intel Core i7-7740X has a TDP of 112W. This represents a significant difference in power consumption and thermal output.

Q: Which processor won the Cinebench R23 multicore test?

A: The Intel Core i7-9700T won the Cinebench R23 multicore test with a score of 8325, compared to the Intel Core i7-7740X’s 8250, a 0.9% deltaPct in favor of the 9700T.

Q: Does the Intel Core i7-7740X have integrated graphics?

A: No, the Intel Core i7-7740X has no integrated graphics. In contrast, the Intel Core i7-9700T includes UHD Graphics 630.

Q: What is the base clock speed of the Intel Core i7-9700T?

A: The Intel Core i7-9700T has a base clock speed of 2000 MHz, which is notably lower than the 7740X’s base clock of 4.30 GHz. Its boost clock is 4.30 GHz.