GeForce 8400 GS vs Radeon HD 3650 AGP

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

GeForce 8400 GS vs Radeon HD 3650 AGP FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

GeForce 8400 GS vs Radeon HD 3650 AGP: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

GeForce 8400 GS

2014

Why buy it

✅39.0% more average FPS across 50 tracked games in our benchmark data.
✅Costs $50 less on MSRP ($30 MSRP vs $80 MSRP).
✅Delivers 189.8% more G3D Mark for each dollar spent, at 5.4 vs 1.9 G3D/$ ($30 MSRP vs $80 MSRP).
✅Draws 33W instead of 45W, a 12W reduction.

Trade-offs

❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon HD 3650 AGP

2011

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

❌Lower average FPS than GeForce 8400 GS across 50 tracked games in our benchmark data.
❌2011 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
166.7% HIGHER MSRP
$80 MSRPvs$30 MSRP
❌Lower G3D Mark per dollar, at 1.9 vs 5.4 G3D/$ ($80 MSRP vs $30 MSRP).
❌36.4% higher power demand at 45W vs 33W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce 8400 GS is the faster gaming card right now. In our data, it leads by 39.0% in average FPS across 50 tracked games in our benchmark data and by 8.7% in PassMark G3D (163 vs 150), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

GeForce 8400 GS is the safer long-term pick for 2026 and beyond. The case is simple: a 28nm process instead of 40nm and a newer 2014 generation instead of 2011. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

GeForce 8400 GS makes the most sense to buy today. It is $50 cheaper on MSRP at $30 vs $80, and it leads G3D-per-dollar by 189.8% (5.4 vs 1.9), so the value case lines up with the gaming result.

GeForce 8400 GS vs Radeon HD 3650 AGP Technical Specifications

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

GeForce 8400 GS

The GeForce 8400 GS is manufactured by NVIDIA. It was released in March 17 2014. It features the Maxwell architecture. The core clock ranges from 1029 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 163 points.

Radeon HD 3650 AGP

The Radeon HD 3650 AGP is manufactured by AMD. It was released in April 19 2011. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 45W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 150 points.

⚡

Graphics Performance

In G3D Mark, the GeForce 8400 GS scores 163 versus the Radeon HD 3650 AGP's 150 — the GeForce 8400 GS leads by 8.7%. The GeForce 8400 GS is built on Maxwell while the Radeon HD 3650 AGP uses TeraScale 2, both on 28 nm vs 40 nm. Shader units: 384 (GeForce 8400 GS) vs 480 (Radeon HD 3650 AGP). Raw compute: 0.8632 TFLOPS (GeForce 8400 GS) vs 0.576 TFLOPS (Radeon HD 3650 AGP).

Feature	GeForce 8400 GS	Radeon HD 3650 AGP
G3D Mark Score	163+9%	150
Architecture	Maxwell	TeraScale 2
Process Node	28 nm	40 nm
Shading Units	384	480+25%
Compute (TFLOPS)	0.8632 TFLOPS+50%	0.576 TFLOPS
ROPs	8	8
TMUs	16	24+50%
L1 Cache	192 KB+300%	48 KB
L2 Cache	1 MB+300%	0.25 MB

✨

Advanced Features (DLSS/FSR)

The GeForce 8400 GS gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon HD 3650 AGP leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

Feature	GeForce 8400 GS	Radeon HD 3650 AGP
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 512 MB of GDDR5. Memory bus width is 128-bit on the GeForce 8400 GS and 128-bit on the Radeon HD 3650 AGP. L2 Cache: 1 MB (GeForce 8400 GS) vs 0.25 MB (Radeon HD 3650 AGP) — the GeForce 8400 GS has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce 8400 GS	Radeon HD 3650 AGP
VRAM Capacity	0.5 GB	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	1 MB+300%	0.25 MB

🔌

Power & Dimensions

The GeForce 8400 GS draws 33W versus the Radeon HD 3650 AGP's 45W — a 30.8% difference. The GeForce 8400 GS is more power-efficient. Recommended PSU: 350W (GeForce 8400 GS) vs 350W (Radeon HD 3650 AGP). Power connectors: Legacy vs 1x 6-pin.

Feature	GeForce 8400 GS	Radeon HD 3650 AGP
TDP	33W-27%	45W
Recommended PSU	350W	350W
Power Connector	Legacy	1x 6-pin
Length	170mm	—
Height	106mm	—
Slots	1	—
Temp (Load)	65°C	—
Perf/Watt	4.9+48%	3.3

💰

Value Analysis

At launch, the GeForce 8400 GS came in at $30, while the Radeon HD 3650 AGP launched at $80. On MSRP, GeForce 8400 GS was 62.5% cheaper ($50 less). Performance per dollar on MSRP (G3D Mark / MSRP): 5.4 (GeForce 8400 GS) vs 1.9 (Radeon HD 3650 AGP) — the GeForce 8400 GS offers 184.2% better value. The newer card here is GeForce 8400 GS (2014 vs 2011).

Feature	GeForce 8400 GS	Radeon HD 3650 AGP
MSRP	$30-63%	$80
Performance per Dollar	5.4+184%	1.9
Codename	GM108	Onega
Release	March 17 2014	April 19 2011
Ranking	#850	#926

Search GeForce 8400 GS on Amazon

Search Radeon HD 3650 AGP on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.