Phenom II X6 1045T vs Ryzen 7 3700X

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.

Phenom II X6 1045T

2010

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 3700X across 3 shared CPU benchmark tests.
❌Lower PassMark (3,244 vs 22,430).
❌Smaller total L3 cache (6 MB vs 32 MB).
❌46.2% higher power demand at 95W vs 65W.

Ryzen 7 3700X

2019

Why buy it

✅Better for gaming: +407.0% higher average FPS across 3 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (32 MB vs 6 MB).
✅Draws 65W instead of 95W, a 30W reduction.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $329 MSRP, while Phenom II X6 1045T mostly shows up through inconsistent older-market listings.

Phenom II X6 1045T

2010

Ryzen 7 3700X

2019

Why buy it

✅Better for gaming: +407.0% higher average FPS across 3 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (32 MB vs 6 MB).
✅Draws 65W instead of 95W, a 30W reduction.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 3700X across 3 shared CPU benchmark tests.
❌Lower PassMark (3,244 vs 22,430).
❌Smaller total L3 cache (6 MB vs 32 MB).
❌46.2% higher power demand at 95W vs 65W.

Trade-offs

❌Launch MSRP is still $329 MSRP, while Phenom II X6 1045T mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Ryzen 7 3700X better than Phenom II X6 1045T?

Yes. Ryzen 7 3700X is the better overall CPU here. You are getting a 407.0% average FPS lead across 3 shared CPU game tests in our data, 591.4% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 3700X is the better pick here. According to our tests, it delivers 407.0% more average FPS across 3 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 3700X is the better fit. You are getting 591.4% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 433.3% larger total L3 cache (32 MB vs 6 MB).

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

Ryzen 7 3700X is the smarter buy today. Ryzen 7 3700X is at an unclear MSRP at $329 MSRP versus unclear MSRP, and it gives you a 407.0% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (68.2 vs 0.0 PassMark/$), 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?

Ryzen 7 3700X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2010), 433.3% larger total L3 cache (32 MB vs 6 MB), and more multi-core headroom with 8 cores / 16 threads instead of 6/6. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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.

Phenom II X6 1045T Benchmark Check

Ryzen 7 3700X Benchmark Check

Path of Exile 2

Preset	Phenom II X6 1045T	Ryzen 7 3700X
1080p
low	81 FPS	200 FPS
medium	81 FPS	163 FPS
high	81 FPS	137 FPS
ultra	81 FPS	110 FPS
1440p
low	81 FPS	156 FPS
medium	81 FPS	121 FPS
high	81 FPS	100 FPS
ultra	70 FPS	80 FPS
4K
low	61 FPS	84 FPS
medium	55 FPS	71 FPS
high	43 FPS	56 FPS
ultra	34 FPS	44 FPS

Open Phenom II X6 1045T Open Ryzen 7 3700X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Phenom II X6 1045T	Ryzen 7 3700X
1080p
low	81 FPS	561 FPS
medium	81 FPS	525 FPS
high	81 FPS	428 FPS
ultra	81 FPS	383 FPS
1440p
low	81 FPS	545 FPS
medium	81 FPS	471 FPS
high	81 FPS	394 FPS
ultra	81 FPS	337 FPS
4K
low	81 FPS	350 FPS
medium	81 FPS	304 FPS
high	81 FPS	274 FPS
ultra	72 FPS	242 FPS

Open Phenom II X6 1045T Open Ryzen 7 3700X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Phenom II X6 1045T	Ryzen 7 3700X
1080p
low	81 FPS	561 FPS
medium	81 FPS	561 FPS
high	81 FPS	561 FPS
ultra	81 FPS	561 FPS
1440p
low	81 FPS	561 FPS
medium	81 FPS	561 FPS
high	81 FPS	538 FPS
ultra	81 FPS	470 FPS
4K
low	81 FPS	499 FPS
medium	81 FPS	394 FPS
high	81 FPS	343 FPS
ultra	81 FPS	275 FPS

Open Phenom II X6 1045T Open Ryzen 7 3700X

League of Legends

League of Legends

Valorant

Preset	Phenom II X6 1045T	Ryzen 7 3700X
1080p
low	81 FPS	561 FPS
medium	81 FPS	561 FPS
high	81 FPS	561 FPS
ultra	81 FPS	561 FPS
1440p
low	81 FPS	561 FPS
medium	81 FPS	561 FPS
high	81 FPS	561 FPS
ultra	81 FPS	555 FPS
4K
low	81 FPS	561 FPS
medium	81 FPS	501 FPS
high	81 FPS	447 FPS
ultra	81 FPS	396 FPS

Open Phenom II X6 1045T Open Ryzen 7 3700X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Phenom II X6 1045T and Ryzen 7 3700X

Phenom II X6 1045T

The Phenom II X6 1045T is manufactured by AMD. It was released in 1 September 2010 (15 years ago). It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 2.7 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,244 points. Launch price was $175.

Ryzen 7 3700X

The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.

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Processing Power

The Phenom II X6 1045T packs 6 cores / 6 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 2 more cores. Boost clocks reach 3.2 GHz on the Phenom II X6 1045T versus 4.4 GHz on the Ryzen 7 3700X — a 31.6% clock advantage for the Ryzen 7 3700X (base: 2.7 GHz vs 3.6 GHz). The Phenom II X6 1045T uses the Thuban (2010) architecture (45 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Phenom II X6 1045T scores 3,244 against the Ryzen 7 3700X's 22,430 — a 149.5% lead for the Ryzen 7 3700X. L3 cache: 6 MB (total) on the Phenom II X6 1045T vs 32 MB on the Ryzen 7 3700X.

Feature	Phenom II X6 1045T	Ryzen 7 3700X
Cores / Threads	6 / 6	8 / 16+33%
Boost Clock	3.2 GHz	4.4 GHz+38%
Base Clock	2.7 GHz	3.6 GHz+33%
L3 Cache	6 MB (total)	32 MB+433%
L2 Cache	512 kB (per core)	512K (per core)
Process	45 nm	7 nm, 12 nm-84%
Architecture	Thuban (2010)	Matisse (Zen 2) (2019−2020)
PassMark	3,244	22,430+591%

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Memory & Platform

The Phenom II X6 1045T uses the AM3 socket (PCIe 2.0), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.