Xeon E3-1265L v3 vs Xeon E5-2658

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.

Xeon E3-1265L v3 vs Xeon E5-2658 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.

Xeon E3-1265L v3 vs Xeon E5-2658: Pros, Cons & Final Verdict

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

Xeon E3-1265L v3

2013

Why buy it

✅Costs $106 less on MSRP ($294 MSRP vs $400 MSRP).
✅Delivers 35.1% more PassMark for each dollar spent, at 21.0 vs 15.6 PassMark/$ ($294 MSRP vs $400 MSRP).
✅Draws 45W instead of 95W, a 50W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics P4600, while Xeon E5-2658 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-2658 across 50 shared CPU benchmark tests.
❌Lower PassMark (6,187 vs 6,232).
❌Smaller total L3 cache (8 MB vs 20 MB).

Xeon E5-2658

2012

Why buy it

✅Better for gaming: +5.3% higher average FPS across 50 shared CPU benchmark tests.
✅+150% larger total L3 cache (20 MB vs 8 MB).

Trade-offs

❌Lower PassMark per dollar, at 15.6 vs 21.0 PassMark/$ ($400 MSRP vs $294 MSRP).
❌111.1% higher power demand at 95W vs 45W.
❌No integrated graphics, while Xeon E3-1265L v3 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon E5-2658 better than Xeon E3-1265L v3?

Yes. Xeon E5-2658 is the better all-around CPU here. It gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data and 0.7% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Xeon E5-2658 is the better pick. According to our tests, it delivers 5.3% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon E5-2658 is the stronger fit. You are getting 0.7% better PassMark, backed by 8 cores and 16 threads. It also has 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?

Xeon E5-2658 is still the faster CPU overall, but Xeon E3-1265L v3 is easier to justify if budget matters more than peak performance. Xeon E5-2658 comes in 36.1% more expensive on MSRP at $400 MSRP versus $294 MSRP, and it still gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data. Xeon E3-1265L v3 is also 35.1% better value on MSRP (21.0 vs 15.6 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon E3-1265L v3 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2012). That makes it the safer long-term bet.

Xeon E3-1265L v3 vs Xeon E5-2658 Technical Specifications

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

Xeon E3-1265L v3

The Xeon E3-1265L v3 is manufactured by Intel. It was released in 2 June 2013 (12 years ago). It is based on the Haswell-WS (2013−2014) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 3.7 GHz. L3 cache: 8192 kB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 45 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 6,187 points. Launch price was $710.

Xeon E5-2658

The Xeon E5-2658 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 2.4 GHz. L3 cache: 20480 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 6,232 points. Launch price was $1,462.

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Processing Power

The Xeon E3-1265L v3 packs 4 cores / 8 threads, while the Xeon E5-2658 offers 8 cores / 16 threads — the Xeon E5-2658 has 4 more cores. Boost clocks reach 3.7 GHz on the Xeon E3-1265L v3 versus 2.4 GHz on the Xeon E5-2658 — a 42.6% clock advantage for the Xeon E3-1265L v3 (base: 2.5 GHz vs 2.1 GHz). The Xeon E3-1265L v3 uses the Haswell-WS (2013−2014) architecture (22 nm), while the Xeon E5-2658 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Xeon E3-1265L v3 scores 6,187 against the Xeon E5-2658's 6,232 — a 0.7% lead for the Xeon E5-2658. L3 cache: 8192 kB (total) on the Xeon E3-1265L v3 vs 20480 kB (total) on the Xeon E5-2658.

Feature	Xeon E3-1265L v3	Xeon E5-2658
Cores / Threads	4 / 8	8 / 16+100%
Boost Clock	3.7 GHz+54%	2.4 GHz
Base Clock	2.5 GHz+19%	2.1 GHz
L3 Cache	8192 kB (total)	20480 kB (total)+150%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	22 nm-31%	32 nm
Architecture	Haswell-WS (2013−2014)	Sandy Bridge-EP (2012)
PassMark	6,187	6,232
Geekbench 6 Single	996	—
Geekbench 6 Multi	3,458	—

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Memory & Platform

The Xeon E3-1265L v3 uses the LGA1150 socket (PCIe 5.0), while the Xeon E5-2658 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Xeon E3-1265L v3	Xeon E5-2658
Socket	LGA1150	LGA2011
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR3-1600	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: Yes (Xeon E3-1265L v3) / not specified (Xeon E5-2658). The Xeon E3-1265L v3 includes integrated graphics (HD Graphics P4600), while the Xeon E5-2658 requires a dedicated GPU. Primary use case: Xeon E3-1265L v3 targets Server.

Feature	Xeon E3-1265L v3	Xeon E5-2658
Integrated GPU	Yes	—
IGPU Model	HD Graphics P4600	—
Unlocked	No	—
AVX-512	No	—
Virtualization	Yes	—
Target Use	Server	—

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Value Analysis

At launch, the Xeon E3-1265L v3 was priced at $294, while the Xeon E5-2658 came in at $400. On launch pricing ($294 vs $400), Xeon E3-1265L v3 was $106 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon E3-1265L v3 delivers 21.0 pts/$ vs 15.6 pts/$ for the Xeon E5-2658 — making the Xeon E3-1265L v3 the 29.8% better value option.

Feature	Xeon E3-1265L v3	Xeon E5-2658
MSRP	$294-27%	$400
Performance per Dollar	21.0+35%	15.6
Release Date	2013	2012

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