Intel Core i7-7740X | Intel Core i9-7940X | |
CPU comparisonIntel Core i7-7740X or Intel Core i9-7940X - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i7-7740X has 4 cores with 8 threads and clocks with a maximum frequency of 4.50 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i7-7740X was released in Q2/2017. The Intel Core i9-7940X has 14 cores with 28 threads and clocks with a maximum frequency of 4.30 GHz. The CPU supports up to 128 GB of memory in 4 memory channels. The Intel Core i9-7940X was released in Q4/2017. |
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Intel Core i7 (298) | Family | Intel Core i9 (78) |
Intel Core i 7000X (9) | CPU group | Intel Core i 7000X (9) |
7 | Generation | 7 |
Skylake X | Architecture | Skylake X |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | Intel Core i9-9940X |
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CPU Cores and Base FrequencyThe Intel Core i7-7740X has 4 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Intel Core i7-7740X is 4.30 GHz (4.50 GHz) while the Intel Core i9-7940X has 14 CPU cores and 28 threads can calculate simultaneously. The clock frequency of the Intel Core i9-7940X is at 3.10 GHz (4.30 GHz). |
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Intel Core i7-7740X | Characteristic | Intel Core i9-7940X |
4 | Cores | 14 |
8 | Threads | 28 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | Yes |
4.30 GHz | Frequency | 3.10 GHz |
4.50 GHz | Turbo Frequency (1 Core) | 4.30 GHz |
4.30 GHz | Turbo Frequency (All Cores) | 3.70 GHz |
Memory & PCIeThe Intel Core i7-7740X can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 42.7 GB/s. The Intel Core i9-7940X supports up to 128 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 85.4 GB/s. |
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Intel Core i7-7740X | Characteristic | Intel Core i9-7940X |
DDR4-2666 | Memory | DDR4-2666 |
64 GB | Max. Memory | 128 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
42.7 GB/s | Max. Bandwidth | 85.4 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
8.00 MB | L3 Cache | 19.00 MB |
3.0 | PCIe version | 3.0 |
16 | PCIe lanes | 44 |
15.8 GB/s | PCIe Bandwidth | 43.3 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-7740X is 112 W, while the Intel Core i9-7940X has a TDP of 165 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Core i7-7740X | Characteristic | Intel Core i9-7940X |
112 W | TDP (PL1 / PBP) | 165 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-7740X is manufactured in 14 nm and has 8.00 MB cache. The Intel Core i9-7940X is manufactured in 14 nm and has a 19.00 MB cache. |
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Intel Core i7-7740X | Characteristic | Intel Core i9-7940X |
14 nm | Technology | 14 nm |
Monolithic | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2, AVX-512 | ISA extensions | SSE4.1, SSE4.2, AVX2, AVX-512 |
LGA 2066 | Socket | LGA 2066 |
VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q2/2017 | Release date | Q4/2017 |
375 $ | Release price | 1399 $ |
show more data | show more data | |
Intel Core i7-7740X
4C 8T @ 4.50 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Core i7-7740X
4C 8T @ 4.50 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Core i7-7740X
4C 8T @ 4.50 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Core i7-7740X
4C 8T @ 4.30 GHz |
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Intel Core i9-7940X
14C 28T @ 3.10 GHz |
Devices using this processor |
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Intel Core i7-7740X | Intel Core i9-7940X |
Unknown | Unknown |