Radeon HD 6620G vs Radeon R4

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.

Radeon HD 6620G vs Radeon R4 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.

Radeon HD 6620G vs Radeon R4: Pros, Cons & Final Verdict

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

Radeon HD 6620G

2011

Why buy it

✅Costs $50 less on MSRP ($50 MSRP vs $100 MSRP).
✅Delivers 97.1% more G3D Mark for each dollar spent, at 6.8 vs 3.5 G3D/$ ($50 MSRP vs $100 MSRP).

Trade-offs

❌Lower average FPS than Radeon R4 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.

Radeon R4

2017

Why buy it

✅27.9% more average FPS across 50 tracked games in our benchmark data.
✅More future proof: GCN 4.0 (2016−2020) on 14nm with a newer platform for upcoming games.

Trade-offs

❌2017 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
100% HIGHER MSRP
$100 MSRPvs$50 MSRP
❌Lower G3D Mark per dollar, at 3.5 vs 6.8 G3D/$ ($100 MSRP vs $50 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Radeon R4 is the faster gaming card right now. In our data, it leads by 27.9% in average FPS across 50 tracked games in our benchmark data and by 1.5% in PassMark G3D (346 vs 341), so the answer here is pretty clean.

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

Radeon HD 6620G is the safer long-term pick for 2026 and beyond because it comes out ahead on the available hardware-headroom signals for this matchup.

Which GPU is the better buy today?

Radeon HD 6620G makes the most sense to buy today. It is $50 cheaper on MSRP at $50 vs $100, and it leads G3D-per-dollar by 97.1% (6.8 vs 3.5), which is enough to swing the recommendation its way. Radeon R4 still makes more sense if max raw gaming performance matters more than value.

Radeon HD 6620G vs Radeon R4 Technical Specifications

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

Radeon HD 6620G

The Radeon HD 6620G 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: 341 points.

Radeon R4

The Radeon R4 is manufactured by AMD. It was released in April 20 2017. It features the GCN 4.0 architecture. The core clock ranges from 1183 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 346 points. Launch price was $79.

⚡

Graphics Performance

The Radeon HD 6620G scores 341 and the Radeon R4 reaches 346 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon HD 6620G is built on TeraScale 2 while the Radeon R4 uses GCN 4.0, both on 40 nm vs 14 nm. Shader units: 480 (Radeon HD 6620G) vs 384 (Radeon R4). Raw compute: 0.576 TFLOPS (Radeon HD 6620G) vs 0.9085 TFLOPS (Radeon R4).

Feature	Radeon HD 6620G	Radeon R4
G3D Mark Score	341	346+1%
Architecture	TeraScale 2	GCN 4.0
Process Node	40 nm	14 nm
Shading Units	480+25%	384
Compute (TFLOPS)	0.576 TFLOPS	0.9085 TFLOPS+58%
ROPs	8	16+100%
TMUs	24	24
L1 Cache	48 KB	96 KB+100%
L2 Cache	256 KB	512 KB+100%
Frame Generation	FSR upscaling	FSR upscaling

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 6620G	Radeon R4
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 512 MB of GDDR5. Memory bus width is 128-bit on the Radeon HD 6620G and 64-bit on the Radeon R4. L2 Cache: 256 KB (Radeon HD 6620G) vs 512 KB (Radeon R4) — the Radeon R4 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 6620G	Radeon R4
VRAM Capacity	0.5 GB	0.5 GB
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	256 KB	512 KB+100%

🔌

Power & Dimensions

The Radeon HD 6620G draws 45W versus the Radeon R4's 50W — a 10.5% difference. The Radeon HD 6620G is more power-efficient. Recommended PSU: 350W (Radeon HD 6620G) vs 350W (Radeon R4). Power connectors: 1x 6-pin vs None.

Feature	Radeon HD 6620G	Radeon R4
TDP	45W-10%	50W
Recommended PSU	350W	350W
Power Connector	1x 6-pin	None
Temp (Load)	75°C	—
Perf/Watt	7.6+10%	6.9

💰

Value Analysis

At launch, the Radeon HD 6620G came in at $50, while the Radeon R4 launched at $100. On MSRP, Radeon HD 6620G was 50% cheaper ($50 less). Performance per dollar on MSRP (G3D Mark / MSRP): 6.8 (Radeon HD 6620G) vs 3.5 (Radeon R4) — the Radeon HD 6620G offers 94.3% better value. The newer card here is Radeon R4 (2017 vs 2011).

Feature	Radeon HD 6620G	Radeon R4
MSRP	$50-50%	$100
Performance per Dollar	6.8+94%	3.5
Codename	Onega	Lexa
Release	April 19 2011	April 20 2017
Ranking	#926	#773

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