Athlon 64 X2 3800+ vs Core i7-9700K

Athlon 64 X2 3800+ vs Core i7-9700K Performance Spectrum

Athlon 64 X2 3800+

2 / 2

1,095

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i7-9700K

8 / 8

14,397

+1214.8%

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 i7-9700K 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 i7-9700K: 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

✅Costs $31 less on MSRP ($354 MSRP vs $385 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 50 shared CPU benchmark tests.
❌Lower PassMark (1,095 vs 14,397).
❌Lower PassMark per dollar, at 3.1 vs 37.4 PassMark/$ ($354 MSRP vs $385 MSRP).
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Core i7-9700K

2018

Why buy it

✅Better for gaming: +743.8% higher average FPS across 50 shared CPU benchmark tests.
✅Delivers 1108.9% more PassMark for each dollar spent, at 37.4 vs 3.1 PassMark/$ ($385 MSRP vs $354 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Athlon 64 X2 3800+ needs a discrete GPU.

Trade-offs

❌
8.8% HIGHER MSRP
$385 MSRPvs$354 MSRP

Quick Answers

So, is Core i7-9700K better than Athlon 64 X2 3800+?

Yes. Core i7-9700K is the better all-around CPU here. It gives you a 743.8% average FPS lead across 50 shared CPU game tests in our data, 1214.8% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-9700K is the better pick. According to our tests, it delivers 743.8% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i7-9700K is the stronger fit. You are getting 1214.8% better PassMark, backed by 8 cores and 8 threads.

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

Core i7-9700K is the better buy right now. Core i7-9700K comes in 8.8% more expensive on MSRP at $385 MSRP versus $354 MSRP, and it still gives you a 743.8% average FPS lead across 50 shared CPU game tests in our data. It is also 1108.9% better value on MSRP (37.4 vs 3.1 PassMark/$), 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 i7-9700K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2005) and more multi-core headroom with 8 cores / 8 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon 64 X2 3800+ vs Core i7-9700K 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 i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

⚡

Processing Power

The Athlon 64 X2 3800+ packs 2 cores / 2 threads, while the Core i7-9700K offers 8 cores / 8 threads — the Core i7-9700K has 6 more cores. Boost clocks reach 2 GHz on the Athlon 64 X2 3800+ versus 4.9 GHz on the Core i7-9700K — a 84.1% clock advantage for the Core i7-9700K. The Athlon 64 X2 3800+ uses the Manchester (2005−2006) architecture (90 nm), while the Core i7-9700K uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Athlon 64 X2 3800+ scores 1,095 against the Core i7-9700K's 14,397 — a 171.7% lead for the Core i7-9700K. L3 cache: 0 kB on the Athlon 64 X2 3800+ vs 12 MB (total) on the Core i7-9700K.

Feature	Athlon 64 X2 3800+	Core i7-9700K
Cores / Threads	2 / 2	8 / 8+300%
Boost Clock	2 GHz	4.9 GHz+145%
Base Clock	—	3.6 GHz
L3 Cache	0 kB	12 MB (total)
L2 Cache	512 kB+100%	256K (per core)
Process	90 nm	14 nm-84%
Architecture	Manchester (2005−2006)	Coffee Lake-R (2018−2019)
PassMark	1,095	14,397+1215%

🧠

Memory & Platform

The Athlon 64 X2 3800+ uses the 939 socket (PCIe 1.1), while the Core i7-9700K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Athlon 64 X2 3800+ versus DDR4-2666 on the Core i7-9700K — the Core i7-9700K supports 233.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9700K supports up to 128 GB of RAM compared to 16 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon 64 X2 3800+) vs 16 (Core i7-9700K) — the Core i7-9700K offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD AM2 (Athlon 64 X2 3800+) and Intel 300 series (Core i7-9700K).

Feature	Athlon 64 X2 3800+	Core i7-9700K
Socket	939	LGA1151
PCIe Generation	PCIe 1.1	PCIe 3.0+173%
Max RAM Speed	DDR2-800	DDR4-2666+233%
Max RAM Capacity	16 GB	128 GB+700%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Athlon 64 X2 3800+) / VT-x, VT-d (Core i7-9700K). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Athlon 64 X2 3800+ requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.

Feature	Athlon 64 X2 3800+	Core i7-9700K
Integrated GPU	No	Yes
IGPU Model	—	UHD Graphics 630
Unlocked	—	Yes
AVX-512	—	No
Virtualization	—	VT-x, VT-d
Target Use	—	Desktop

💰

Value Analysis

At launch, the Athlon 64 X2 3800+ was priced at $354, while the Core i7-9700K came in at $385. On launch pricing ($354 vs $385), Athlon 64 X2 3800+ was $31 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon 64 X2 3800+ delivers 3.1 pts/$ vs 37.4 pts/$ for the Core i7-9700K — making the Core i7-9700K the 169.4% better value option.

Feature	Athlon 64 X2 3800+	Core i7-9700K
MSRP	$354-8%	$385
Performance per Dollar	3.1	37.4+1106%
Release Date	2005	2018

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