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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i5-10400F

2020

Why buy it

✅Better for gaming: +231.5% higher average FPS across 3 shared CPU benchmark tests.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Draws 65W instead of 512W, a 447W reduction.
✅60% more PCIe lanes (16 vs 10) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i7-10510Y.

Trade-offs

❌Launch MSRP is still $160 MSRP, while Core i7-10510Y mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Core i7-10510Y can still boot and troubleshoot without a discrete GPU.

Core i7-10510Y

2019

Why buy it

✅Integrated graphics onboard with Intel UHD Graphics 617, while Core i5-10400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 3 shared CPU benchmark tests.
❌Lower Geekbench multi-core (2,960 vs 5,783).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌687.7% higher power demand at 512W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Core i7-10510Y

2019

Why buy it

✅Better for gaming: +231.5% higher average FPS across 3 shared CPU benchmark tests.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Draws 65W instead of 512W, a 447W reduction.
✅60% more PCIe lanes (16 vs 10) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i7-10510Y.

Why buy it

✅Integrated graphics onboard with Intel UHD Graphics 617, while Core i5-10400F needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $160 MSRP, while Core i7-10510Y mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Core i7-10510Y can still boot and troubleshoot without a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 3 shared CPU benchmark tests.
❌Lower Geekbench multi-core (2,960 vs 5,783).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌687.7% higher power demand at 512W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i5-10400F better than Core i7-10510Y?

Yes. Core i5-10400F is the better overall CPU here. You are getting a 231.5% average FPS lead across 3 shared CPU game tests in our data, 95.4% better Geekbench multi-core, 258.8% higher PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i5-10400F is the better pick here. According to our tests, it delivers 231.5% more average FPS across 3 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i5-10400F is the better fit. You are getting 95.4% better Geekbench multi-core, backed by 6 cores and 12 threads. It also carries the larger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

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

Core i5-10400F is the smarter buy today. Core i5-10400F is at an unclear MSRP at $160 MSRP versus unclear MSRP, and it gives you a 231.5% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper. That said, if you already own a compatible UTFCBGA1377 setup, Core i7-10510Y can still make sense as a platform-matched option because it avoids a motherboard swap.

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

Core i5-10400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019), 50% larger total L3 cache (12 MB vs 8 MB), and more multi-core headroom with 6 cores / 12 threads instead of 4/8. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

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.

Core i5-10400F Benchmark Check

Core i7-10510Y Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Core i7-10510Y
1080p
low	192 FPS	91 FPS
medium	152 FPS	91 FPS
high	123 FPS	91 FPS
ultra	100 FPS	91 FPS
1440p
low	153 FPS	91 FPS
medium	119 FPS	91 FPS
high	97 FPS	91 FPS
ultra	79 FPS	79 FPS
4K
low	82 FPS	84 FPS
medium	70 FPS	72 FPS
high	55 FPS	57 FPS
ultra	43 FPS	45 FPS

Open Core i5-10400F Open Core i7-10510Y

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Core i7-10510Y
1080p
low	326 FPS	91 FPS
medium	318 FPS	91 FPS
high	290 FPS	91 FPS
ultra	253 FPS	91 FPS
1440p
low	326 FPS	91 FPS
medium	292 FPS	91 FPS
high	267 FPS	91 FPS
ultra	234 FPS	91 FPS
4K
low	309 FPS	91 FPS
medium	258 FPS	91 FPS
high	235 FPS	85 FPS
ultra	199 FPS	71 FPS

Open Core i5-10400F Open Core i7-10510Y

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Core i7-10510Y
1080p
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	326 FPS	91 FPS
ultra	326 FPS	91 FPS
1440p
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	326 FPS	91 FPS
ultra	326 FPS	91 FPS
4K
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	289 FPS	91 FPS
ultra	229 FPS	91 FPS

Open Core i5-10400F Open Core i7-10510Y

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Core i7-10510Y
1080p
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	326 FPS	91 FPS
ultra	326 FPS	91 FPS
1440p
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	326 FPS	91 FPS
ultra	326 FPS	91 FPS
4K
low	326 FPS	91 FPS
medium	326 FPS	91 FPS
high	326 FPS	91 FPS
ultra	326 FPS	91 FPS

Open Core i5-10400F Open Core i7-10510Y

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Core i7-10510Y

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

Core i7-10510Y

The Core i7-10510Y is manufactured by Intel. It was released in 21 August 2019 (6 years ago). It is based on the Comet Lake-Y (2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.2 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: UTFCBGA1377. Thermal design power (TDP): 7 Watt. Memory support: DDR3. Passmark benchmark score: 3,631 points. Launch price was $69.

⚡

Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Core i7-10510Y offers 4 cores / 8 threads — the Core i5-10400F has 2 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.5 GHz on the Core i7-10510Y — a 4.5% clock advantage for the Core i7-10510Y (base: 2.9 GHz vs 1.2 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Core i7-10510Y uses Comet Lake-Y (2019) (14 nm). In PassMark, the Core i5-10400F scores 13,029 against the Core i7-10510Y's 3,631 — a 112.8% lead for the Core i5-10400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 1,270, a 13.5% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 2,960 (64.6% advantage for the Core i5-10400F). L3 cache: 12 MB (total) on the Core i5-10400F vs 8 MB (total) on the Core i7-10510Y.

Feature	Core i5-10400F	Core i7-10510Y
Cores / Threads	6 / 12+50%	4 / 8
Boost Clock	4.3 GHz	4.5 GHz+5%
Base Clock	2.9 GHz+142%	1.2 GHz
L3 Cache	12 MB (total)+50%	8 MB (total)
L2 Cache	256K (per core)	256K (per core)
Process	14 nm	14 nm
Architecture	Comet Lake (2020−2025)	Comet Lake-Y (2019)
PassMark	13,029+259%	3,631
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454+14%	1,270
Geekbench 6 Multi	5,783+95%	2,960

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Core i7-10510Y uses UTFCBGA1377 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus LPDDR3-2133 on the Core i7-10510Y — the Core i5-10400F supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-10400F supports up to 128 GB of RAM compared to 16 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-10400F) vs 10 (Core i7-10510Y) — the Core i5-10400F offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and Comet Lake-Y (Core i7-10510Y).

Feature	Core i5-10400F	Core i7-10510Y
Socket	LGA1200	UTFCBGA1377
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666+33%	LPDDR3-2133
Max RAM Capacity	128 GB+700%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16+60%	10

🔧

Advanced Features

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. The Core i7-10510Y includes integrated graphics (Intel UHD Graphics 617), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming, Core i7-10510Y targets Ultrabook/Tablet. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.