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 i7-975

2009

Why buy it

✅Better for gaming: +7.3% higher average FPS across 2 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 2 shared CPU benchmark tests.
❌Lower PassMark (3,491 vs 3,527).
❌Smaller total L3 cache (4 MB vs 8 MB).

Core i7-975

2009

Core i7-2657M

2011

Why buy it

✅Better for gaming: +7.3% higher average FPS across 2 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).

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

❌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.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-975 across 2 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 overall CPU here. You are getting a 7.3% average FPS lead across 2 shared CPU game tests in our data and 1% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i7-975 is the better pick here. According to our tests, it delivers 7.3% more average FPS across 2 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 better fit. You are getting 1% better PassMark, backed by 4 cores and 8 threads. It also carries 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 smarter buy today. Core i7-975 is at an unclear MSRP at $999 MSRP versus unclear MSRP, and it gives you a 7.3% average FPS lead across 2 shared CPU game tests in our data. It is also 100.0% better value on MSRP (3.5 vs 0.0 PassMark/$), 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 i7-2657M is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009). 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 i7-975 Benchmark Check

Core i7-2657M Benchmark Check

Path of Exile 2

Preset	Core i7-975	Core i7-2657M
1080p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	77 FPS
1440p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	83 FPS
ultra	73 FPS	65 FPS
4K
low	62 FPS	66 FPS
medium	56 FPS	57 FPS
high	44 FPS	43 FPS
ultra	35 FPS	34 FPS

Open Core i7-975 Open Core i7-2657M

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-975	Core i7-2657M
1080p
low	88 FPS	67 FPS
medium	88 FPS	60 FPS
high	88 FPS	56 FPS
ultra	88 FPS	41 FPS
1440p
low	88 FPS	55 FPS
medium	88 FPS	48 FPS
high	88 FPS	45 FPS
ultra	88 FPS	36 FPS
4K
low	88 FPS	39 FPS
medium	88 FPS	35 FPS
high	77 FPS	26 FPS
ultra	54 FPS	18 FPS

Open Core i7-975 Open Core i7-2657M

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-975	Core i7-2657M
1080p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS
1440p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS
4K
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS

Open Core i7-975 Open Core i7-2657M

League of Legends

League of Legends

Valorant

Preset	Core i7-975	Core i7-2657M
1080p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS
1440p
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS
4K
low	88 FPS	87 FPS
medium	88 FPS	87 FPS
high	88 FPS	87 FPS
ultra	88 FPS	87 FPS

Open Core i7-975 Open Core i7-2657M

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-975 and Core i7-2657M

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.

⚡

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

🧠

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

🔧

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.