Core i7-975 vs Core i7-2657M

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 i7-975 vs Core i7-2657M 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 i7-975 vs Core i7-2657M: Pros, Cons & Final Verdict

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

Core i7-975

2009

Why buy it

✅Better for gaming: +17.6% higher average FPS across 50 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).

Trade-offs

❌Launch MSRP is still $999 MSRP, while Core i7-2657M mostly shows up through inconsistent older-market listings.
❌664.7% higher power demand at 130W vs 17W.
❌No integrated graphics, while Core i7-2657M can still boot and troubleshoot without a discrete GPU.

Core i7-2657M

2011

Why buy it

✅Draws 17W instead of 130W, a 113W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 3000, while Core i7-975 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-975 across 50 shared CPU benchmark tests.
❌Lower PassMark (3,491 vs 3,527).
❌Smaller total L3 cache (4 MB vs 8 MB).

Quick Answers

So, is Core i7-975 better than Core i7-2657M?

Yes. Core i7-975 is the better all-around CPU here. It gives you a 17.6% average FPS lead across 50 shared CPU game tests in our data and 1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-975 is the better pick. According to our tests, it delivers 17.6% 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, Core i7-975 is the stronger fit. You are getting 1% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 100% larger total L3 cache (8 MB vs 4 MB).

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

Core i7-975 is the better buy right now. Core i7-975 comes in at an unclear MSRP at $999 MSRP versus unclear MSRP, and it still gives you a 17.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (3.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i7-2657M makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009). That makes it the safer long-term bet.

Core i7-975 vs Core i7-2657M Technical Specifications

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

Core i7-975

The Core i7-975 is manufactured by Intel. It was released in 2 June 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 3.33 GHz, with boost up to 3.6 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,527 points. Launch price was $476.

Core i7-2657M

The Core i7-2657M is manufactured by Intel. It was released in 3 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.7 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 3,491 points. Launch price was $317.

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Processing Power

The Core i7-975 packs 4 cores / 8 threads, while the Core i7-2657M offers 2 cores / 4 threads — the Core i7-975 has 2 more cores. Boost clocks reach 3.6 GHz on the Core i7-975 versus 2.7 GHz on the Core i7-2657M — a 28.6% clock advantage for the Core i7-975 (base: 3.33 GHz vs 1.6 GHz). The Core i7-975 uses the Bloomfield (2008−2010) architecture (45 nm), while the Core i7-2657M uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-975 scores 3,527 against the Core i7-2657M's 3,491 — a 1% lead for the Core i7-975. L3 cache: 8 MB (total) on the Core i7-975 vs 4 MB on the Core i7-2657M.

Feature	Core i7-975	Core i7-2657M
Cores / Threads	4 / 8+100%	2 / 4
Boost Clock	3.6 GHz+33%	2.7 GHz
Base Clock	3.33 GHz+108%	1.6 GHz
L3 Cache	8 MB (total)+100%	4 MB
L2 Cache	256 kB (per core)	512 kB+100%
Process	45 nm	32 nm-29%
Architecture	Bloomfield (2008−2010)	Sandy Bridge (2011−2013)
PassMark	3,527+1%	3,491
Geekbench 6 Single	—	535

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Memory & Platform

The Core i7-975 uses the LGA1366 socket (PCIe 2.0), while the Core i7-2657M uses BGA1023 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-975	Core i7-2657M
Socket	LGA1366	BGA1023
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	—	DDR3-1333
Max RAM Capacity	—	8 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	16

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Advanced Features

Virtualization: not specified (Core i7-975) / VT-x, VT-d, EPT (Core i7-2657M). The Core i7-2657M includes integrated graphics (HD Graphics 3000), while the Core i7-975 requires a dedicated GPU. Primary use case: Core i7-2657M targets Ultrabook. Direct competitor: Core i7-2657M rivals A6-3420M.