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 i5-13400F

2023

Why buy it

✅Better for gaming: +198.7% higher average FPS across 5 shared CPU benchmark tests.
✅+150% larger total L3 cache (20 MB vs 8 MB).
✅Costs $77 less on MSRP ($196 MSRP vs $273 MSRP).
✅Delivers 550.3% more PassMark for each dollar spent, at 127.7 vs 19.6 PassMark/$ ($196 MSRP vs $273 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Xeon E3-1240

2011

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-13400F across 5 shared CPU benchmark tests.
❌Lower PassMark (5,361 vs 25,029).
❌Smaller total L3 cache (8 MB vs 20 MB).
❌Lower PassMark per dollar, at 19.6 vs 127.7 PassMark/$ ($273 MSRP vs $196 MSRP).
❌23.1% higher power demand at 80W vs 65W.

Core i5-13400F

2023

Xeon E3-1240

2011

Why buy it

✅Better for gaming: +198.7% higher average FPS across 5 shared CPU benchmark tests.
✅+150% larger total L3 cache (20 MB vs 8 MB).
✅Costs $77 less on MSRP ($196 MSRP vs $273 MSRP).
✅Delivers 550.3% more PassMark for each dollar spent, at 127.7 vs 19.6 PassMark/$ ($196 MSRP vs $273 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.

Why buy it

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-13400F across 5 shared CPU benchmark tests.
❌Lower PassMark (5,361 vs 25,029).
❌Smaller total L3 cache (8 MB vs 20 MB).
❌Lower PassMark per dollar, at 19.6 vs 127.7 PassMark/$ ($273 MSRP vs $196 MSRP).
❌23.1% higher power demand at 80W vs 65W.

Quick Answers

So, is Core i5-13400F better than Xeon E3-1240?

Not in a simple one-size-fits-all way. Xeon E3-1240 makes more sense for workstation-style multi-core throughput, while Core i5-13400F is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Core i5-13400F is the better pick here. According to our tests, it delivers 198.7% more average FPS across 5 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i5-13400F is the better fit. You are getting 366.9% better PassMark, backed by 10 cores and 16 threads. It also carries the larger cache pool with 150% larger total L3 cache (20 MB vs 8 MB).

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

Core i5-13400F is the smarter buy today. Core i5-13400F is $77 cheaper on MSRP at $196 MSRP versus $273 MSRP, and it gives you a 198.7% average FPS lead across 5 shared CPU game tests in our data. It is also 550.3% better value on MSRP (127.7 vs 19.6 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core i5-13400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2011), a healthier platform with LGA1700 and DDR5 instead of LGA1155, 150% larger total L3 cache (20 MB vs 8 MB), and more multi-core headroom with 10 cores / 16 threads instead of 4/8. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 i5-13400F Benchmark Check

Xeon E3-1240 Benchmark Check

Path of Exile 2

Preset	Core i5-13400F	Xeon E3-1240
1080p
low	171 FPS	134 FPS
medium	158 FPS	134 FPS
high	132 FPS	110 FPS
ultra	112 FPS	89 FPS
1440p
low	143 FPS	134 FPS
medium	123 FPS	115 FPS
high	99 FPS	91 FPS
ultra	84 FPS	73 FPS
4K
low	81 FPS	63 FPS
medium	74 FPS	56 FPS
high	59 FPS	44 FPS
ultra	46 FPS	35 FPS

Open Core i5-13400F Open Xeon E3-1240

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-13400F	Xeon E3-1240
1080p
low	545 FPS	134 FPS
medium	464 FPS	134 FPS
high	389 FPS	134 FPS
ultra	356 FPS	122 FPS
1440p
low	458 FPS	134 FPS
medium	403 FPS	134 FPS
high	345 FPS	133 FPS
ultra	301 FPS	109 FPS
4K
low	280 FPS	129 FPS
medium	247 FPS	114 FPS
high	231 FPS	93 FPS
ultra	204 FPS	67 FPS

Open Core i5-13400F Open Xeon E3-1240

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-13400F	Xeon E3-1240
1080p
low	530 FPS	134 FPS
medium	449 FPS	134 FPS
high	415 FPS	134 FPS
ultra	375 FPS	134 FPS
1440p
low	490 FPS	134 FPS
medium	422 FPS	134 FPS
high	382 FPS	134 FPS
ultra	343 FPS	134 FPS
4K
low	393 FPS	134 FPS
medium	331 FPS	134 FPS
high	296 FPS	134 FPS
ultra	246 FPS	134 FPS

Open Core i5-13400F Open Xeon E3-1240

League of Legends

League of Legends

Valorant

Preset	Core i5-13400F	Xeon E3-1240
1080p
low	626 FPS	134 FPS
medium	626 FPS	134 FPS
high	626 FPS	134 FPS
ultra	626 FPS	134 FPS
1440p
low	626 FPS	134 FPS
medium	626 FPS	134 FPS
high	598 FPS	134 FPS
ultra	521 FPS	134 FPS
4K
low	535 FPS	134 FPS
medium	492 FPS	134 FPS
high	439 FPS	134 FPS
ultra	382 FPS	134 FPS

Open Core i5-13400F Open Xeon E3-1240

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-13400F and Xeon E3-1240

Core i5-13400F

The Core i5-13400F is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 10 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 4.6 GHz. L3 cache: 20 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5, DDR4. Passmark benchmark score: 25,029 points. Launch price was $196.

Xeon E3-1240

The Xeon E3-1240 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 5,361 points. Launch price was $209.

⚡

Processing Power

The Core i5-13400F packs 10 cores / 16 threads, while the Xeon E3-1240 offers 4 cores / 8 threads — the Core i5-13400F has 6 more cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 3.7 GHz on the Xeon E3-1240 — a 21.7% clock advantage for the Core i5-13400F (base: 2.5 GHz vs 3.3 GHz). The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Xeon E3-1240 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-13400F scores 25,029 against the Xeon E3-1240's 5,361 — a 129.4% lead for the Core i5-13400F. L3 cache: 20 MB (total) on the Core i5-13400F vs 8 MB (total) on the Xeon E3-1240.

Feature	Core i5-13400F	Xeon E3-1240
Cores / Threads	10 / 16+150%	4 / 8
Boost Clock	4.6 GHz+24%	3.7 GHz
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	20 MB (total)+150%	8 MB (total)
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	Intel 7 nm-78%	32 nm
Architecture	Raptor Lake-S (2023−2024)	Sandy Bridge (2011−2013)
PassMark	25,029+367%	5,361
Cinebench R23 Multi	16,211	—
Geekbench 6 Single	2,407	—
Geekbench 6 Multi	11,408	—

🧠

Memory & Platform

The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the Xeon E3-1240 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i5-13400F	Xeon E3-1240
Socket	LGA1700	LGA1155
PCIe Generation	PCIe 5.0+150%	PCIe 2.0
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	192 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i5-13400F) / not specified (Xeon E3-1240). Primary use case: Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.

Feature	Core i5-13400F	Xeon E3-1240
Integrated GPU	No	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—
Target Use	Gaming	—

💰

Value Analysis

The Core i5-13400F launched at $196 MSRP, while the Xeon E3-1240 debuted at $273. On MSRP ($196 vs $273), the Core i5-13400F is $77 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-13400F delivers 127.7 pts/$ vs 19.6 pts/$ for the Xeon E3-1240 — making the Core i5-13400F the 146.7% better value option.