Athlon 64 X2 3800+ vs Core i7-620UM

Athlon 64 X2 3800+ vs Core i7-620UM Performance Spectrum

Athlon 64 X2 3800+

2 / 2

1,095

+0.4%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i7-620UM

2 / 4

1,091

0.0%

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.

Athlon 64 X2 3800+ vs Core i7-620UM 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.

Athlon 64 X2 3800+ vs Core i7-620UM: Pros, Cons & Final Verdict

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

Athlon 64 X2 3800+

2005

Why buy it

✅+0.4% higher PassMark.

Trade-offs

❌Lower PassMark per dollar, at 3.1 vs 3.9 PassMark/$ ($354 MSRP vs $278 MSRP).
❌394.4% higher power demand at 89W vs 18W.
❌No integrated graphics, while Core i7-620UM can still boot and troubleshoot without a discrete GPU.

Core i7-620UM

2010

Why buy it

✅Costs $76 less on MSRP ($278 MSRP vs $354 MSRP).
✅Delivers 26.9% more PassMark for each dollar spent, at 3.9 vs 3.1 PassMark/$ ($278 MSRP vs $354 MSRP).
✅Draws 18W instead of 89W, a 71W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Ironlake), while Athlon 64 X2 3800+ needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,091 vs 1,095).

Quick Answers

So, is Core i7-620UM better than Athlon 64 X2 3800+?

It depends on what you want from the system. For gaming, Core i7-620UM is ahead with a 2.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Athlon 64 X2 3800+ pulls ahead with 0.4% better PassMark.

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

For streaming, content creation, and heavier multitasking, Athlon 64 X2 3800+ is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads.

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

Core i7-620UM is the better buy right now. Core i7-620UM comes in $76 cheaper on MSRP at $278 MSRP versus $354 MSRP, and it still gives you a 2.2% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Athlon 64 X2 3800+ is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 26.9% better value on MSRP (3.9 vs 3.1 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i7-620UM makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2005). That makes it the safer long-term bet.

Athlon 64 X2 3800+ vs Core i7-620UM Technical Specifications

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

Athlon 64 X2 3800+

The Athlon 64 X2 3800+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Manchester (2005−2006) architecture. It features 2 cores and 2 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 90 nm process technology. Socket: 939. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,095 points. Launch price was $149.

Core i7-620UM

The Core i7-620UM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.06 GHz, with boost up to 2.13 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3-800. Passmark benchmark score: 1,091 points. Launch price was $278.

⚡

Processing Power

The Athlon 64 X2 3800+ packs 2 cores / 2 threads, matching the Core i7-620UM's 2 cores. Boost clocks reach 2 GHz on the Athlon 64 X2 3800+ versus 2.13 GHz on the Core i7-620UM — a 6.3% clock advantage for the Core i7-620UM. The Athlon 64 X2 3800+ uses the Manchester (2005−2006) architecture (90 nm), while the Core i7-620UM uses Arrandale (2010−2011) (32 nm). In PassMark, the Athlon 64 X2 3800+ scores 1,095 against the Core i7-620UM's 1,091 — a 0.4% lead for the Athlon 64 X2 3800+. L3 cache: 0 kB on the Athlon 64 X2 3800+ vs 4 MB (total) on the Core i7-620UM.

Feature	Athlon 64 X2 3800+	Core i7-620UM
Cores / Threads	2 / 2	2 / 4
Boost Clock	2 GHz	2.13 GHz+6%
Base Clock	—	1.06 GHz
L3 Cache	0 kB	4 MB (total)
L2 Cache	512 kB+100%	256 kB (per core)
Process	90 nm	32 nm-64%
Architecture	Manchester (2005−2006)	Arrandale (2010−2011)
PassMark	1,095	1,091
Geekbench 6 Single	—	350
Geekbench 6 Multi	—	700

🧠

Memory & Platform

The Athlon 64 X2 3800+ uses the 939 socket (PCIe 1.1), while the Core i7-620UM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Athlon 64 X2 3800+ versus DDR3-1066 on the Core i7-620UM — the Core i7-620UM supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon 64 X2 3800+ supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon 64 X2 3800+) vs 16 (Core i7-620UM) — the Core i7-620UM offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD AM2 (Athlon 64 X2 3800+) and HM55,QM57 (Core i7-620UM).

Feature	Athlon 64 X2 3800+	Core i7-620UM
Socket	939	BGA1288
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-800	DDR3-1066+33%
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Athlon 64 X2 3800+) / VT-x (Core i7-620UM). The Core i7-620UM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Athlon 64 X2 3800+ requires a dedicated GPU. Primary use case: Core i7-620UM targets Ultra-Portable Laptop. Direct competitor: Core i7-620UM rivals Core 2 Duo SU9600.

Feature	Athlon 64 X2 3800+	Core i7-620UM
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics (Ironlake)
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x
Target Use	—	Ultra-Portable Laptop

💰

Value Analysis

At launch, the Athlon 64 X2 3800+ was priced at $354, while the Core i7-620UM came in at $278. On launch pricing ($354 vs $278), Core i7-620UM was $76 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon 64 X2 3800+ delivers 3.1 pts/$ vs 3.9 pts/$ for the Core i7-620UM — making the Core i7-620UM the 23.7% better value option.

Feature	Athlon 64 X2 3800+	Core i7-620UM
MSRP	$354	$278-21%
Performance per Dollar	3.1	3.9+26%
Release Date	2005	2010

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