Intel HEDT CPU v4.1.0-X
Intel Core i7-7740X X-series Processor
patch
0
Core i7-7740X
Benchmarks
Total score 3,435 / 10,000, rank 543 of 2125.
Every score is out of 10,000, relative to the best CPUs. The total also counts the recommended price ($339, Intel ARK recommended customer price (2018)); see how scores work.
| Category | Score | Measured | |
|---|---|---|---|
| Single-thread | 4,803 | 2,704 points | |
| Multi-thread | 565 | 9,699 points | |
| 3D rendering | 472 | monster 41.4, junkshop 26.4, classroom 19.5 samples/min over 5 runs | |
| Gamingestimated | 5,030 |
Sources: PassMark (Intel Core i7-7740X @ 4.30GHz, 245 samples), Blender Open Data
Metadata
| Property | Value |
|---|---|
| Brand | Core |
| Intel name | Intel Core i7-7740X X-series Processor |
| Processor number | i7-7740X |
| Codename | Kaby Lake |
| Generation | Skylake-X / Kaby Lake-X |
| Microarchitecture | Skylake-SP / Kaby Lake |
| Performance class | Core i7 |
| Segment | Desktop |
| Released | 2017-Q22017 |
| Status | Discontinued |
| Cores | 4 |
| Threads | 8 |
| Base clock | 4.30 GHz |
| Max clock | 4.50 GHz |
| Cache | 8 MB |
| Bus | 8 GT/s |
| TDP | 112 W |
| Lithography (as published) | 14 nm |
| Max memory | 64 GB |
| Memory channels | 2 |
| PCIe revision | 3.0 |
| PCIe lanes | 16 |
| Max CPUs per system | 1 |
| Instruction set | 64-bit |
| Socket | FCLGA2066LGA2066 |
| Memory | DDR4-2666DDR4 |
| Recommended price | $339 |
| Instruction sets | |
| Features | |
| Source | Intel ARK (via cpu-spec-dataset) |
Uses (dependencies)
- lithography: Intel Lithography
v16.1.0(14 nm+) - simd: Intel SIMD
v0.0.1(MMX) - simd: Intel SIMD
v1.4.1(SSE4.2) - simd: Intel SIMD
v2.1.0(AVX2)
Used by (0)
Nothing depends on this version.
Known vulnerabilities and defects
- Meltdown (CVE-2017-5754): Rogue data cache load: user code can read kernel memory through speculative execution.
- Spectre variant 1 (bounds check bypass) (CVE-2017-5753): Mistrained conditional branches speculatively read out-of-bounds data. Mitigated in software only; every speculative out-of-order core is affected.
- Foreshadow / L1 Terminal Fault (CVE-2018-3615, CVE-2018-3620, CVE-2018-3646): Speculative reads from the L1 data cache through non-present page table entries, breaking SGX, OS and VMM isolation.
- Microarchitectural Data Sampling (ZombieLoad, RIDL, Fallout) (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091): Data in store buffers, fill buffers and load ports leaks across privilege boundaries.
- Special Register Buffer Data Sampling (CrossTalk) (CVE-2020-0543): RDRAND/RDSEED results leak across cores through a shared staging buffer.
- Retbleed (CVE-2022-29901): Return instructions are hijacked through the branch target buffer on cores without enhanced IBRS.
- Downfall / Gather Data Sampling (CVE-2022-40982): The AVX gather instruction leaks stale data from internal vector registers.
Matched by codename; individual steppings may differ.
Changelog
Since the previous minor (lower performance class): Intel HEDT CPU v4.0.0-X (Core i5-7640X)
Performance
- ~Total score 3085 → 3435 (+11%)
- ~Single-thread 4516 → 4803 (+6%)
- ~Multi-thread 413 → 565 (+37%)
- ~3D rendering 284 → 472 (+66%)
- ~Gaming 4355 → 5030 (+15%)
Features
- +Hyper-Threading
Specifications
- +Threads: 8
- ~Base clock: 4.00 GHz → 4.30 GHz
- ~Max clock: 4.20 GHz → 4.50 GHz
- ~Cache: 6 MB → 8 MB
- ~Recommended price: $242 → $339
Since the previous major (previous generation): Intel HEDT CPU v3.0.0-K (Core i7-6800K)
Breaking changes
- ~Socket changed from FCLGA2011-3 to FCLGA2066
Security
- !Introduced: Special Register Buffer Data Sampling (CrossTalk)
- !Introduced: Downfall / Gather Data Sampling
Performance
- ~Total score 3010 → 3435 (+14%)
- ~Single-thread 3910 → 4803 (+23%)
- ~Multi-thread 625 → 565 (-10%)
- ~3D rendering 556 → 472 (-15%)
- ~Gaming 4503 → 5030 (+12%)
Features
- +Turbo Boost 2.0
- +Optane Memory support
- −EPT
- −Execute Disable Bit
- −Enhanced SpeedStep
- −Turbo Boost Max 3.0
Specifications
- ~Codename: Broadwell E → Kaby Lake
- ~Microarchitecture: Broadwell → Skylake-SP / Kaby Lake
- ~Cores: 6 → 4
- ~Threads: 12 → 8
- ~Base clock: 3.40 GHz → 4.30 GHz
- ~Max clock: 3.60 GHz → 4.50 GHz
- ~Cache: 15 MB Intel Smart Cache → 8 MB
- +Bus: 8 GT/s
- ~TDP: 140 W → 112 W
- ~Max memory: 128 GB → 64 GB
- ~Memory channels: 4 → 2
- ~PCIe lanes: 28 → 16
- ~Recommended price: $434 → $339
Raw source data
Show all 46 fields
| Field | Value |
|---|---|
| CpuId | 121499 |
| CpuName | Intel Core i7-7740X X-series Processor |
| AESTech | Yes |
| BornOnDate | Q2'17 |
| Bus | 8 GT/s |
| BusNumPorts | 0 |
| Cache | 8 MB |
| ClockSpeed | 4.30 GHz |
| ClockSpeedMax | 4.50 GHz |
| CodeNameText | Products formerly Kaby Lake |
| CoreCount | 4 |
| ECCMemory | No |
| EM64 | Yes |
| Embedded | No |
| ESUDate | Sunday. March 31. 2024 |
| HyperThreading | Yes |
| InstructionSet | 64-bit |
| InstructionSetExtensions | Intel SSE4.1. Intel SSE4.2. Intel AVX2 |
| ItemsIncluded | Please note: The boxed product does not include a fan or heat sink |
| Lithography | 14 nm |
| MarketSegment | Desktop |
| MaxCPUs | 1 |
| MaxMem | 64 GB |
| MaxMemoryBandwidth | 42 GB/s |
| MaxTDP | 112 W |
| MemoryTypes | DDR4-2666 |
| NumMemoryChannels | 2 |
| NumPCIExpressPorts | 16 |
| OptaneMemorySupport | Yes |
| PCIExpressConfigs | Up to 1x16. 2x8. 1x8+2x4 |
| PCIExpressRevision | 3.0 |
| ProcessorNumber | i7-7740X |
| ProductBriefUrl | View now |
| ProductGroup | Intel Core X-series Processors |
| ScalableSockets | 1S Only |
| ServicingStatus | ESU Notification Issued |
| SocketsSupported | FCLGA2066 |
| StatusCodeText | Discontinued |
| TBTVersion | 2.0 |
| ThermalJunctionRateCode | 100°C |
| ThermalSolutionSpecification | PCG 2017X |
| ThreadCount | 8 |
| TurboBoostTech2MaxFreq | 4.50 GHz |
| VTD | Yes |
| VTX | Yes |
| SourceUrl | https://ark.intel.com/content/www/us/en/ark/products/121499/intel-core-i77740x-xseries-processor-8m-cache-up-to-4-50-ghz.html |