A6-8500P vs Pentium G645

A6-8500P vs Pentium G645 Performance Spectrum

A6-8500P

2 / 2

1,445

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Pentium G645

2 / 2

1,450

+0.3%

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.

A6-8500P vs Pentium G645 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.

A6-8500P vs Pentium G645: Pros, Cons & Final Verdict

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

A6-8500P

2015

Why buy it

✅Draws 1W instead of 65W, a 64W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon R5 Graphics, while Pentium G645 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,445 vs 1,450).
❌Lower PassMark per dollar, at 14.4 vs 18.1 PassMark/$ ($100 MSRP vs $80 MSRP).

Pentium G645

2012

Why buy it

✅+0.3% higher PassMark.
✅Costs $20 less on MSRP ($80 MSRP vs $100 MSRP).
✅Delivers 25.4% more PassMark for each dollar spent, at 18.1 vs 14.4 PassMark/$ ($80 MSRP vs $100 MSRP).

Trade-offs

❌6400% higher power demand at 65W vs 1W.
❌No integrated graphics, while A6-8500P can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is A6-8500P better than Pentium G645?

It depends on what you want from the system. For gaming, A6-8500P is ahead with a 1.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium G645 pulls ahead with 0.3% better PassMark.

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

For streaming, content creation, and heavier multitasking, Pentium G645 is the stronger fit. You are getting 0.3% better PassMark, backed by 2 cores and 2 threads.

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

A6-8500P is still the much better call for a fresh build. A6-8500P comes in 25.0% more expensive on MSRP at $100 MSRP versus $80 MSRP, and it still gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data. Pentium G645 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 25.4% better value on paper (18.1 vs 14.4 PassMark/$), 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?

A6-8500P makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2012). That makes it the safer long-term bet.

A6-8500P vs Pentium G645 Technical Specifications

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

A6-8500P

The A6-8500P is manufactured by AMD. It was released in 2014-01-01. It is based on the Carrizo (2015−2018) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 3 GHz. L2 cache: 1024 kB. Built on 28 nm process technology. Socket: FP4. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,445 points. Launch price was $70.

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.

⚡

Processing Power

Both the A6-8500P and Pentium G645 share an identical 2-core/2-thread configuration. Boost clocks reach 3 GHz on the A6-8500P versus 2.9 GHz on the Pentium G645 — a 3.4% clock advantage for the A6-8500P (base: 1.6 GHz vs 2.9 GHz). The A6-8500P uses the Carrizo (2015−2018) architecture (28 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A6-8500P scores 1,445 against the Pentium G645's 1,450 — a 0.3% lead for the Pentium G645.

Feature	A6-8500P	Pentium G645
Cores / Threads	2 / 2	2 / 2
Boost Clock	3 GHz+3%	2.9 GHz
Base Clock	1.6 GHz	2.9 GHz+81%
L3 Cache	—	3 MB (total)
L2 Cache	1024 kB+300%	256 kB (per core)
Process	28 nm-13%	32 nm
Architecture	Carrizo (2015−2018)	Sandy Bridge (2011−2013)
PassMark	1,445	1,450

🧠

Memory & Platform

The A6-8500P uses the FP4 socket (PCIe 3.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	A6-8500P	Pentium G645
Socket	FP4	LGA1155
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	1600	—
Max RAM Capacity	16	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: true (A6-8500P) / not specified (Pentium G645). The A6-8500P includes integrated graphics (Radeon R5 Graphics), while the Pentium G645 requires a dedicated GPU. Direct competitor: A6-8500P rivals Pentium 3825U.

Feature	A6-8500P	Pentium G645
Integrated GPU	Yes	—
IGPU Model	Radeon R5 Graphics	—
Unlocked	No	—
AVX-512	No	—
Virtualization	true	—

💰

Value Analysis

At launch, the A6-8500P was priced at $100, while the Pentium G645 came in at $80. On launch pricing ($100 vs $80), Pentium G645 was $20 cheaper. In terms of value on MSRP (PassMark points per dollar), the A6-8500P delivers 14.4 pts/$ vs 18.1 pts/$ for the Pentium G645 — making the Pentium G645 the 22.6% better value option.

Feature	A6-8500P	Pentium G645
MSRP	$100	$80-20%
Performance per Dollar	14.4	18.1+26%
Release Date	2015	2012

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