Intel Core i7-7700K

The Intel Core i7-7700K is an Intel desktop processor built on the 14nm Kaby Lake architecture, with 4 cores and 8 threads. It runs at a base clock of 4.20 GHz and a boost clock of 4.50 GHz, carries a 91W TDP, and has an unlocked multiplier. The benchmark database places it at the 72nd percentile of all CPUs, with an average benchmark score of 13280.

Benchmark Performance

The i7-7700K produces consistent multi-core results across the Cinebench family: 824 in Cinebench R15 multi-core, 3435 in Cinebench R20 multi-core, and 8179 in Cinebench R23 multi-core. The corresponding single-core scores are 116, 484, and 1154. Geekbench reports a multi-core score of 5158 and a single-core score of 1593. Passmark adds a multithread score of 9627 and a single-thread score of 2708, with the same result also recorded as 2708 in the singlethread test.

The broader Passmark subtest set shows where the processor’s resources go. Data compression scores 136852, data encryption scores 3343, extended instructions score 8943, find prime numbers scores 31, floating point math scores 18741, integer math scores 30553, physics scores 655, and random string sorting scores 17208. These are different workload shapes, and the wide spread between the highest and lowest subtests is typical of a CPU that is balanced overall but not tuned for any one specialized task.

The average benchmark score of 13280 places the processor above the 72nd percentile of all CPUs, meaning the majority of processors in the database score lower. Against its nearest rivals, the margins are small. The Intel Core i3-10105 averages 13430, which is 1.1% above the i7-7700K. The Intel Core i7-1250U averages 13462, 1.4% above. The Intel Core i3-12100F averages 13516, 1.7% above. The only rival in this group that the i7-7700K leads is the Intel Core i5-9400F, which averages 13035 and sits 1.9% behind. This puts the i7-7700K in a tightly packed cluster where the entire rival set is separated by less than two percentage points in either direction.

Single-Thread vs Multi-Thread Behavior

The i7-7700K’s thread layout is 4 cores with 8 threads. In Passmark, the multi-thread score of 9627 is substantially higher than the single-thread score of 2708, showing that the extra threads contribute meaningful throughput. The same pattern appears in Geekbench, where the multi-core score of 5158 exceeds the single-core score of 1593. In Cinebench R23, the multi-core score of 8179 is well above the single-core score of 1154, and the older Cinebench R15 and R20 versions show the same relationship.

For real workloads, the split matters because lightly threaded applications depend on the processor’s ability to run a small number of instructions fast. The base clock of 4.20 GHz and boost clock of 4.50 GHz support that kind of work. Heavily threaded workloads, by contrast, benefit from the 8 threads, and the multi-core scores reflect that scaling. The 4-core design places a practical ceiling on how much additional performance can be extracted from parallel tasks, so the data shows a processor that is strong in both modes but more distinctive on the single-thread side of the ledger.

How It Compares

The Intel Core i3-10105 is the first nearest rival. Its average benchmark score is 13430, and the i7-7700K trails by 1.1%. That is a narrow margin, small enough that the two processors occupy essentially the same performance tier in the synthetic aggregate.

The Intel Core i7-1250U averages 13462, putting the i7-7700K 1.4% behind. The gap is slightly larger than the gap to the i3-10105, but it remains a minor difference in overall benchmark output.

The Intel Core i3-12100F is the highest-scoring rival in this set, with an average of 13516. The i7-7700K is 1.7% behind it, which is the largest deficit among the four nearest rivals. Even so, the absolute difference is still within a narrow range of scores.

The Intel Core i5-9400F averages 13035, and the i7-7700K is 1.9% ahead of it. This is the only rival listed in the nearest group that the i7-7700K outperforms, making this comparison the clearest positive result in the set.

FAQ

Q: What socket does the Intel Core i7-7700K use?

A: It uses Intel Socket 1151.

Q: Does the i7-7700K support ECC memory?

A: No, ECC memory is not supported.

Q: What memory support does the processor have?

A: It supports DDR4 memory over a dual-channel bus, with a memory bandwidth of 38.4 GB/s.

Q: Does the i7-7700K include integrated graphics?

A: Yes, it includes an HD 630 integrated graphics unit.

Q: Is the multiplier unlocked?

A: Yes, the multiplier is unlocked.

Q: How does the i7-7700K compare to the Intel Core i5-9400F?

A: The i7-7700K has an average benchmark score of 13280, while the i5-9400F averages 13035, putting the i7-7700K 1.9% higher.

Power and Thermals

The i7-7700K has a TDP of 91W, which places it in the desktop power class rather than a low-power or ultra-mobile category. The 14nm process node is the manufacturing technology behind the chip, and the Kaby Lake architecture defines its design. The processor also carries an unlocked multiplier, meaning the thermal behavior can change if clocks are adjusted. With a 91W TDP, the implied cooling tier is a conventional desktop cooler capable of handling that heat output. No special liquid cooling tier is indicated by the stock specification alone, but the unlocked multiplier means the cooling solution should account for the possibility of higher sustained power draw under modified operating conditions.

Platform and Compatibility

The platform is built around Intel Socket 1151. Memory support is DDR4 through a dual-channel interface, with a peak bandwidth of 38.4 GB/s. ECC memory is not supported. For expansion, the processor provides 16 PCIe Gen 3 lanes, and these are CPU-only lanes. The integrated HD 630 graphics means the platform can provide display output without requiring a discrete graphics card. The processor is a desktop part, was released on 2017-01-02, and has the part number SR33A. Its production status is Active. Because it is a Kaby Lake architecture part on Socket 1151, compatibility with a given system depends on that socket and on platform support for the Kaby Lake generation.