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 i7-2600S

2011

Why buy it

✅Costs $699 less on MSRP ($297 MSRP vs $996 MSRP).
✅Delivers 233.8% more PassMark for each dollar spent, at 15.6 vs 4.7 PassMark/$ ($297 MSRP vs $996 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 2000, while Xeon L5640 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon L5640.

Trade-offs

❌Lower PassMark (4,637 vs 4,659).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon L5640, which brings 6 cores / 12 threads.

Xeon L5640

2010

Why buy it

✅+0.5% higher PassMark.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.
✅Draws 60W instead of 65W, a 5W reduction.

Trade-offs

❌Lower PassMark per dollar, at 4.7 vs 15.6 PassMark/$ ($996 MSRP vs $297 MSRP).
❌No integrated graphics, while Core i7-2600S can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i7-2600S.

Core i7-2600S

2011

Xeon L5640

2010

Why buy it

✅Costs $699 less on MSRP ($297 MSRP vs $996 MSRP).
✅Delivers 233.8% more PassMark for each dollar spent, at 15.6 vs 4.7 PassMark/$ ($297 MSRP vs $996 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 2000, while Xeon L5640 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon L5640.

Why buy it

✅+0.5% higher PassMark.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.
✅Draws 60W instead of 65W, a 5W reduction.

Trade-offs

❌Lower PassMark (4,637 vs 4,659).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌Less compelling for workstation-style loads than Xeon L5640, which brings 6 cores / 12 threads.

Trade-offs

❌Lower PassMark per dollar, at 4.7 vs 15.6 PassMark/$ ($996 MSRP vs $297 MSRP).
❌No integrated graphics, while Core i7-2600S can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i7-2600S.

Quick Answers

So, is Core i7-2600S better than Xeon L5640?

Not in a simple one-size-fits-all way. Xeon L5640 makes more sense for workstation-style multi-core throughput, while Core i7-2600S is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Xeon L5640 is the better fit. You are getting 0.5% better PassMark, 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 i7-2600S is the smarter buy today. Core i7-2600S is $699 cheaper on MSRP at $297 MSRP versus $996 MSRP, and it gives you a 2.8% average FPS lead across 5 shared CPU game tests in our data. The trade-off is that Xeon L5640 is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 233.8% better value on MSRP (15.6 vs 4.7 PassMark/$), 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 i7-2600S is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2010). That makes it the safer long-term pick.

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 i7-2600S Benchmark Check

Xeon L5640 Benchmark Check

Path of Exile 2

Preset	Core i7-2600S	Xeon L5640
1080p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	110 FPS	105 FPS
ultra	89 FPS	87 FPS
1440p
low	116 FPS	116 FPS
medium	115 FPS	111 FPS
high	91 FPS	86 FPS
ultra	73 FPS	70 FPS
4K
low	63 FPS	61 FPS
medium	56 FPS	55 FPS
high	44 FPS	43 FPS
ultra	35 FPS	34 FPS

Open Core i7-2600S Open Xeon L5640

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-2600S	Xeon L5640
1080p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS
1440p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	109 FPS	107 FPS
4K
low	116 FPS	116 FPS
medium	114 FPS	116 FPS
high	93 FPS	104 FPS
ultra	67 FPS	74 FPS

Open Core i7-2600S Open Xeon L5640

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-2600S	Xeon L5640
1080p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS
1440p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS
4K
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS

Open Core i7-2600S Open Xeon L5640

League of Legends

League of Legends

Valorant

Preset	Core i7-2600S	Xeon L5640
1080p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS
1440p
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS
4K
low	116 FPS	116 FPS
medium	116 FPS	116 FPS
high	116 FPS	116 FPS
ultra	116 FPS	116 FPS

Open Core i7-2600S Open Xeon L5640

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-2600S and Xeon L5640

Core i7-2600S

The Core i7-2600S is manufactured by Intel. It was released in 9 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.8 GHz. L3 cache: 8192 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 4,637 points. Launch price was $210.

Xeon L5640

The Xeon L5640 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.26 GHz, with boost up to 2.8 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 4,659 points. Launch price was $200.

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Processing Power

The Core i7-2600S packs 4 cores / 8 threads, while the Xeon L5640 offers 6 cores / 12 threads — the Xeon L5640 has 2 more cores. Boost clocks reach 3.8 GHz on the Core i7-2600S versus 2.8 GHz on the Xeon L5640 — a 30.3% clock advantage for the Core i7-2600S (base: 2.8 GHz vs 2.26 GHz). The Core i7-2600S uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Xeon L5640 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i7-2600S scores 4,637 against the Xeon L5640's 4,659 — a 0.5% lead for the Xeon L5640. L3 cache: 8192 kB (total) on the Core i7-2600S vs 12 MB (total) on the Xeon L5640.

Feature	Core i7-2600S	Xeon L5640
Cores / Threads	4 / 8	6 / 12+50%
Boost Clock	3.8 GHz+36%	2.8 GHz
Base Clock	2.8 GHz+24%	2.26 GHz
L3 Cache	8192 kB (total)	12 MB (total)+50%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm	32 nm
Architecture	Sandy Bridge (2011−2013)	Westmere-EP (2010−2011)
PassMark	4,637	4,659
Geekbench 6 Single	630	—

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Memory & Platform

The Core i7-2600S uses the LGA1155 socket (PCIe 2.0), while the Xeon L5640 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i7-2600S versus DDR3 1333 MHz on the Xeon L5640 — the Xeon L5640 supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon L5640 supports up to 288 GB of RAM compared to 32 GB — 160% more capacity for professional workloads. Memory channels: 2 (Core i7-2600S) vs 3 (Xeon L5640). PCIe lanes: 16 (Core i7-2600S) vs 0 (Xeon L5640) — the Core i7-2600S offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,H67,Z68,B75 (Core i7-2600S) and Intel 5520,Intel X58 (Xeon L5640).

Feature	Core i7-2600S	Xeon L5640
Socket	LGA1155	LGA1366
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	DDR3-1333	DDR3 1333 MHz
Max RAM Capacity	32 GB	288 GB+800%
RAM Channels	2	3+50%
ECC Support	No	Yes
PCIe Lanes	16	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d, EPT (Core i7-2600S) vs true (Xeon L5640). The Core i7-2600S includes integrated graphics (HD Graphics 2000), while the Xeon L5640 requires a dedicated GPU. Primary use case: Core i7-2600S targets Low Power Desktop, Xeon L5640 targets Server Low Power. Direct competitor: Core i7-2600S rivals Phenom II X4 910e.

Feature	Core i7-2600S	Xeon L5640
Integrated GPU	Yes	No
IGPU Model	HD Graphics 2000	—
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d, EPT	true
Target Use	Low Power Desktop	Server Low Power

💰

Value Analysis

The Core i7-2600S launched at $297 MSRP, while the Xeon L5640 debuted at $996. On MSRP ($297 vs $996), the Core i7-2600S is $699 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-2600S delivers 15.6 pts/$ vs 4.7 pts/$ for the Xeon L5640 — making the Core i7-2600S the 107.8% better value option.