Core i9-12900KS vs Xeon Gold 6312U
Core i9-12900KS
Xeon Gold 6312U
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i9-12900KS
Performance Per Dollar Xeon Gold 6312U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($385) | ⚠️ Higher cost ($1,645) |
| Longevity | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) | ✨ Modern (Ice Lake-SP (2021) / 10 nm) |
💎 Value Proposition
| Insight | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+338%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($385) | ⚠️ Higher cost ($1,645) |
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 i9-12900KS and Xeon Gold 6312U
Core i9-12900KS
The Core i9-12900KS is manufactured by Intel. It was released in 5 April 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 16 cores and 24 threads. Base frequency is 3.4 GHz, with boost up to 5.3 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 43,528 points. Launch price was $499.
Xeon Gold 6312U
The Xeon Gold 6312U is manufactured by Intel. It was released in 2015-01-01. It is based on the Ice Lake-SP (2021) architecture. It features 24 cores and 48 threads. Base frequency is 2.4 GHz, with boost up to 3.6 GHz. L3 cache: 36 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 185 Watt. Memory support: DDR4-3200. Passmark benchmark score: 42,443 points. Launch price was $800.
Processing Power
The Core i9-12900KS packs 16 cores / 24 threads, while the Xeon Gold 6312U offers 24 cores / 48 threads — the Xeon Gold 6312U has 8 more cores. Boost clocks reach 5.3 GHz on the Core i9-12900KS versus 3.6 GHz on the Xeon Gold 6312U — a 38.2% clock advantage for the Core i9-12900KS (base: 3.4 GHz vs 2.4 GHz). The Core i9-12900KS uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon Gold 6312U uses Ice Lake-SP (2021) (10 nm). In PassMark, the Core i9-12900KS scores 43,528 against the Xeon Gold 6312U's 42,443 — a 2.5% lead for the Core i9-12900KS. L3 cache: 30 MB (total) on the Core i9-12900KS vs 36 MB (total) on the Xeon Gold 6312U.
| Feature | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| Cores / Threads | 16 / 24 | 24 / 48+50% |
| Boost Clock | 5.3 GHz+47% | 3.6 GHz |
| Base Clock | 3.4 GHz+42% | 2.4 GHz |
| L3 Cache | 30 MB (total) | 36 MB (total)+20% |
| L2 Cache | 1.25 MB (per core)+25% | 1 MB (per core) |
| Process | Intel 7 nm-30% | 10 nm |
| Architecture | Alder Lake-S (2022) | Ice Lake-SP (2021) |
| PassMark | 43,528+3% | 42,443 |
| Cinebench R23 Multi | 27,796 | — |
| Geekbench 6 Single | 2,082 | — |
Memory & Platform
The Core i9-12900KS uses the LGA1700 socket (PCIe 5.0), while the Xeon Gold 6312U uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i9-12900KS versus 3200 on the Xeon Gold 6312U — the Xeon Gold 6312U supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6312U supports up to 6144 of RAM compared to 128 GB — 191.8% more capacity for professional workloads. Memory channels: 2 (Core i9-12900KS) vs 8 (Xeon Gold 6312U). PCIe lanes: 20 (Core i9-12900KS) vs 64 (Xeon Gold 6312U) — the Xeon Gold 6312U offers 44 more lanes for additional GPUs or NVMe drives. Chipset compatibility: LGA1700 (Core i9-12900KS) and C621A (Xeon Gold 6312U).
| Feature | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| Socket | LGA1700 | LGA4189 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-4800 | 3200+63900% |
| Max RAM Capacity | 128 GB+2184433% | 6144 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 20 | 64+220% |
Advanced Features
Only the Core i9-12900KS has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d virtualization. The Core i9-12900KS includes integrated graphics (UHD 770), while the Xeon Gold 6312U requires a dedicated GPU. Direct competitor: Xeon Gold 6312U rivals EPYC 7413.
| Feature | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD 770 | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The Core i9-12900KS launched at $739 MSRP, while the Xeon Gold 6312U debuted at $1645.
| Feature | Core i9-12900KS | Xeon Gold 6312U |
|---|---|---|
| MSRP | $739-55% | $1645 |
| Avg Price (30d) | $385 | — |
| Release Date | 2022 | 2021 |
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