Core i7-8700 vs Core i7-7800X
Core i7-8700
Core i7-7800X
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i7-8700 is positioned at rank 483 and the Core i7-7800X is on rank 551, so the Core i7-8700 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-8700
Performance Per Dollar Core i7-7800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-8700 | Core i7-7800X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($110) | ⚠️ Higher cost ($254) |
| Longevity | ✨ Modern (Coffee Lake-S (2017−2018) / 14 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-8700 | Core i7-7800X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+127%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($110) | ⚠️ Higher cost ($254) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i7-8700 and Core i7-7800X
Core i7-8700
The Core i7-8700 is manufactured by Intel. It was released in 1 January 2018 (7 years ago). It is based on the Coffee Lake-S (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 12288 kB. L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 12,747 points. Launch price was $303.
Core i7-7800X
The Core i7-7800X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2400. Passmark benchmark score: 12,963 points. Launch price was $383.
Processing Power
Both the Core i7-8700 and Core i7-7800X share an identical 6-core/12-thread configuration. Boost clocks reach 4.6 GHz on the Core i7-8700 versus 4 GHz on the Core i7-7800X — a 14% clock advantage for the Core i7-8700 (base: 3.2 GHz vs 3.5 GHz). The Core i7-8700 uses the Coffee Lake-S (2017−2018) architecture (14 nm), while the Core i7-7800X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-8700 scores 12,747 against the Core i7-7800X's 12,963 — a 1.7% lead for the Core i7-7800X. Cinebench R23 multi-core: 7,969 vs 6,897 (14.4% advantage for the Core i7-8700). Geekbench 6 single-core — the metric most relevant to gaming — records 1,535 vs 1,114, a 31.8% lead for the Core i7-8700 that directly translates to higher frame rates. Multi-core Geekbench: 6,200 vs 6,951 (11.4% advantage for the Core i7-7800X). L3 cache: 12288 kB on the Core i7-8700 vs 8.25 MB (total) on the Core i7-7800X.
| Feature | Core i7-8700 | Core i7-7800X |
|---|---|---|
| Cores / Threads | 6 / 12 | 6 / 12 |
| Boost Clock | 4.6 GHz+15% | 4 GHz |
| Base Clock | 3.2 GHz | 3.5 GHz+9% |
| L3 Cache | 12288 kB+45% | 8.25 MB (total) |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake-S (2017−2018) | Skylake (server) (2017−2018) |
| PassMark | 12,747 | 12,963+2% |
| Cinebench R23 Multi | 7,969+16% | 6,897 |
| Geekbench 6 Single | 1,535+38% | 1,114 |
| Geekbench 6 Multi | 6,200 | 6,951+12% |
Memory & Platform
The Core i7-8700 uses the LGA1151 socket (PCIe 3.0), while the Core i7-7800X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 128 GB of RAM. Memory channels: 2 (Core i7-8700) vs 4 (Core i7-7800X). PCIe lanes: 16 (Core i7-8700) vs 28 (Core i7-7800X) — the Core i7-7800X offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 300-series (Core i7-8700) and X299 (Core i7-7800X).
| Feature | Core i7-8700 | Core i7-7800X |
|---|---|---|
| Socket | LGA1151 | LGA2066 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | DDR4-2400 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 4+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 28+75% |
Advanced Features
Only the Core i7-7800X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-8700) vs Yes (Core i7-7800X). The Core i7-8700 includes integrated graphics (UHD Graphics 630), while the Core i7-7800X requires a dedicated GPU. Primary use case: Core i7-8700 targets Gaming. Direct competitor: Core i7-8700 rivals Ryzen 5 2600.
| Feature | Core i7-8700 | Core i7-7800X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics 630 | — |
| Unlocked | No | — |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | Yes |
| Target Use | Gaming | — |
Value Analysis
The Core i7-8700 launched at $303 MSRP, while the Core i7-7800X debuted at $383. At current prices ($110 vs $254), the Core i7-8700 is $144 cheaper. In terms of value (PassMark points per dollar), the Core i7-8700 delivers 115.9 pts/$ vs 51.0 pts/$ for the Core i7-7800X — making the Core i7-8700 the 77.7% better value option.
| Feature | Core i7-8700 | Core i7-7800X |
|---|---|---|
| MSRP | $303-21% | $383 |
| Avg Price (30d) | $110-57% | $254 |
| Performance per Dollar | 115.9+127% | 51.0 |
| Release Date | 2017 | 2017 |
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