Pentium G645 vs Xeon E7320

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 G645 vs Xeon E7320 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 G645 vs Xeon E7320: Pros, Cons & Final Verdict

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

Pentium G645

2012

Why buy it

✅Draws 65W instead of 80W, a 15W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E7320 across 49 shared CPU benchmark tests.
❌Lower PassMark (1,450 vs 1,469).
❌Smaller total L3 cache (3 MB vs 4 MB).
❌Launch MSRP is still $80 MSRP, while Xeon E7320 mostly shows up through inconsistent older-market listings.

Xeon E7320

2007

Why buy it

✅Better for gaming: +5.8% higher average FPS across 49 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (4 MB vs 3 MB).

Trade-offs

❌23.1% higher power demand at 80W vs 65W.

Quick Answers

So, is Xeon E7320 better than Pentium G645?

Not really, because they are built for different jobs. Xeon E7320 makes more sense for workstation-style multi-core throughput, while Pentium G645 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon E7320 is the better pick. According to our tests, it delivers 5.8% more average FPS across 49 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon E7320 is the stronger fit. You are getting 1.3% better PassMark. It also has the larger cache pool with 33.3% larger total L3 cache (4 MB vs 3 MB).

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

Xeon E7320 is still the much better call for a fresh build. Xeon E7320 comes in at an unclear MSRP at unclear MSRP versus $80 MSRP, and it still gives you a 5.8% average FPS lead across 49 shared CPU game tests in our data. Pentium G645 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 100.0% better value on paper (18.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.

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

Pentium G645 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2007). That makes it the safer long-term bet.

Pentium G645 vs Xeon E7320 Technical Specifications

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

Pentium G645

The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (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: 1,450 points. Launch price was $80.

Xeon E7320

The Xeon E7320 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 2.13 GHz. L3 cache: 4 MB L2 Cache. Built on 65 nm process technology. Socket: PGA604. Thermal design power (TDP): 80 Watt. Passmark benchmark score: 1,469 points. Launch price was $800.

⚡

Processing Power

The Pentium G645 is built on the Sandy Bridge (2011−2013) architecture. In PassMark, the Pentium G645 scores 1,450 against the Xeon E7320's 1,469 — a 1.3% lead for the Xeon E7320. L3 cache: 3 MB (total) on the Pentium G645 vs 4 MB L2 Cache on the Xeon E7320.

Feature	Pentium G645	Xeon E7320
Cores / Threads	2 / 2	—
Boost Clock	2.9 GHz	—
Base Clock	2.9 GHz+36%	2.13 GHz
L3 Cache	3 MB (total)	4 MB L2 Cache+33%
L2 Cache	256 kB (per core)	—
Process	32 nm-51%	65 nm
Architecture	Sandy Bridge (2011−2013)	—
PassMark	1,450	1,469+1%

🧠

Memory & Platform

The Pentium G645 uses the LGA1155 socket (PCIe 2.0), while the Xeon E7320 uses PGA604 (PCIe 2.0) — making them incompatible on the same motherboard.