Pentium Silver J5040 vs Phenom II X6 1045T

Pentium Silver J5040 vs Phenom II X6 1045T Performance Spectrum

Pentium Silver J5040

4 / 4

3,252

+0.2%

3,244

0.0%

Ryzen Threadripper 3990X

About PassMark

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.

Pentium Silver J5040 vs Phenom II X6 1045T 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.

Pentium Silver J5040 vs Phenom II X6 1045T: Pros, Cons & Final Verdict

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

Pentium Silver J5040

2019

Why buy it

✅+0.2% higher PassMark.
✅Draws 10W instead of 95W, a 85W reduction.
✅100+% more PCIe lanes (6 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 605, while Phenom II X6 1045T needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (4 MB vs 6 MB).

Phenom II X6 1045T

2010

Why buy it

✅+50% larger total L3 cache (6 MB vs 4 MB).

Trade-offs

❌Lower PassMark (3,244 vs 3,252).
❌850% higher power demand at 95W vs 10W.
❌No integrated graphics, while Pentium Silver J5040 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium Silver J5040 better than Phenom II X6 1045T?

Yes. Pentium Silver J5040 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data, 0.2% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

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

For streaming, content creation, and heavier multitasking, Pentium Silver J5040 is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 4 threads.

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

Pentium Silver J5040 still makes the most sense overall. Pentium Silver J5040 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data.

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

Pentium Silver J5040 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2010) and more multi-core headroom with 4 cores / 4 threads instead of 6/6. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium Silver J5040 vs Phenom II X6 1045T Technical Specifications

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

Pentium Silver J5040

The Pentium Silver J5040 is manufactured by Intel. It was released in 4 November 2019 (6 years ago). It is based on the Gemini Lake Refresh (2019) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 3.2 GHz. L3 cache: 4 MB. L2 cache: 4 MB (total). Built on 14 nm process technology. Socket: FCBGA1090. Thermal design power (TDP): 10 Watt. Memory support: DDR4. Passmark benchmark score: 3,252 points. Launch price was $161.

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.

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Processing Power

The Pentium Silver J5040 packs 4 cores / 4 threads, while the Phenom II X6 1045T offers 6 cores / 6 threads — the Phenom II X6 1045T has 2 more cores. Boost clocks reach 3.2 GHz on the Pentium Silver J5040 versus 3.2 GHz on the Phenom II X6 1045T — identical boost frequencies (base: 2 GHz vs 2.7 GHz). The Pentium Silver J5040 uses the Gemini Lake Refresh (2019) architecture (14 nm), while the Phenom II X6 1045T uses Thuban (2010) (45 nm). In PassMark, the Pentium Silver J5040 scores 3,252 against the Phenom II X6 1045T's 3,244 — a 0.2% lead for the Pentium Silver J5040. L3 cache: 4 MB on the Pentium Silver J5040 vs 6 MB (total) on the Phenom II X6 1045T.

Feature	Pentium Silver J5040	Phenom II X6 1045T
Cores / Threads	4 / 4	6 / 6+50%
Boost Clock	3.2 GHz	3.2 GHz
Base Clock	2 GHz	2.7 GHz+35%
L3 Cache	4 MB	6 MB (total)+50%
L2 Cache	4 MB (total)+700%	512 kB (per core)
Process	14 nm-69%	45 nm
Architecture	Gemini Lake Refresh (2019)	Thuban (2010)
PassMark	3,252	3,244
Cinebench R23 Multi	1,640	—
Geekbench 6 Single	435	—
Geekbench 6 Multi	1,180	—

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Memory & Platform

The Pentium Silver J5040 uses the FCBGA1090 socket (PCIe 3.0), while the Phenom II X6 1045T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Pentium Silver J5040	Phenom II X6 1045T
Socket	FCBGA1090	AM3
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2400 / LPDDR4-2400	—
Max RAM Capacity	8 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	6	—

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Advanced Features

Virtualization: VT-x / VT-d / EPT (Pentium Silver J5040) / not specified (Phenom II X6 1045T). The Pentium Silver J5040 includes integrated graphics (Intel UHD Graphics 605), while the Phenom II X6 1045T requires a dedicated GPU. Primary use case: Pentium Silver J5040 targets Mini-PC.