Core i5-1145G7 vs Ryzen 9 5900X

CPU

GPU

Core i5-1145G7

4 Cores8 Thrd28 WWMax: 4.4 GHz2020

Similar parts

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Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020

Ryzen family

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Core i5-1145G7 vs Ryzen 9 5900X Performance Spectrum

Core i5-1145G7

4 / 8

9,266

0.0%

38,955

+320.4%

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

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.

Core i5-1145G7 vs Ryzen 9 5900X FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-1145G7 vs Ryzen 9 5900X: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-1145G7

2020

Why buy it

✅Draws 28W instead of 105W, a 77W reduction.
✅Integrated graphics onboard with Iris Xe Graphics (80 EU), while Ryzen 9 5900X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 29 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (5,195 vs 21,000).
❌Smaller total L3 cache (8 MB vs 64 MB).

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +92.9% higher average FPS across 29 shared CPU benchmark tests.
✅+700% larger total L3 cache (64 MB vs 8 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Core i5-1145G7 mostly shows up through inconsistent older-market listings.
❌275% higher power demand at 105W vs 28W.
❌No integrated graphics, while Core i5-1145G7 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 5900X better than Core i5-1145G7?

Yes. Ryzen 9 5900X is the better all-around CPU here. It gives you a 92.9% average FPS lead across 29 shared CPU game tests in our data, 304.2% better Cinebench R23 multi-core, 320.4% higher PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 5900X is the better pick. According to our tests, it delivers 92.9% more average FPS across 29 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 9 5900X is the stronger fit. You are getting 304.2% better Cinebench R23 multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 700% larger total L3 cache (64 MB vs 8 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 9 5900X is the better buy right now. Ryzen 9 5900X comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 92.9% average FPS lead across 29 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Ryzen 9 5900X makes more sense long term for 2026 and beyond. You are getting 700% larger total L3 cache (64 MB vs 8 MB) and more multi-core headroom with 12 cores / 24 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-1145G7 vs Ryzen 9 5900X Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-1145G7

The Core i5-1145G7 is manufactured by Intel. It was released in 2 September 2020 (5 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 9,266 points. Launch price was $309.

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

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Processing Power

The Core i5-1145G7 packs 4 cores / 8 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 8 more cores. Boost clocks reach 4.4 GHz on the Core i5-1145G7 versus 4.8 GHz on the Ryzen 9 5900X — a 8.7% clock advantage for the Ryzen 9 5900X (base: 2.6 GHz vs 3.7 GHz). The Core i5-1145G7 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i5-1145G7 scores 9,266 against the Ryzen 9 5900X's 38,955 — a 123.1% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 5,195 vs 21,000 (120.7% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,653 vs 2,174, a 27.2% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 4,764 vs 11,888 (85.6% advantage for the Ryzen 9 5900X). L3 cache: 8 MB (total) on the Core i5-1145G7 vs 64 MB on the Ryzen 9 5900X.

Feature	Core i5-1145G7	Ryzen 9 5900X
Cores / Threads	4 / 8	12 / 24+200%
Boost Clock	4.4 GHz	4.8 GHz+9%
Base Clock	2.6 GHz	3.7 GHz+42%
L3 Cache	8 MB (total)	64 MB+700%
L2 Cache	1.25 MB (per core)	512K (per core)+40860%
Process	10 nm SuperFin	7 nm, 12 nm-30%
Architecture	Tiger Lake-UP3 (2020−2021)	Vermeer (Zen3) (2020−2022)
PassMark	9,266	38,955+320%
Cinebench R23 Multi	5,195	21,000+304%
Geekbench 6 Single	1,653	2,174+32%
Geekbench 6 Multi	4,764	11,888+150%

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Memory & Platform

The Core i5-1145G7 uses the FCBGA1449 socket (PCIe 4.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Ryzen 9 5900X supports up to 128 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-1145G7) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Core i5-1145G7) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).

Feature	Core i5-1145G7	Ryzen 9 5900X
Socket	FCBGA1449	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	DDR4-3200
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

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Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i5-1145G7 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i5-1145G7) vs AMD-V (Ryzen 9 5900X). The Core i5-1145G7 includes integrated graphics (Iris Xe Graphics (80 EU)), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Core i5-1145G7 targets Business, Ryzen 9 5900X targets Workstation. Direct competitor: Core i5-1145G7 rivals Core i5-1135G7; Ryzen 9 5900X rivals Core i9-12900K.