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 RX 6600M vs Radeon RX Vega 64 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 RX 6600M vs Radeon RX Vega 64: 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 RX 6600M

2021

Why buy it

✅0.2% more average FPS across 50 tracked games in our benchmark data.
✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅Better long-term bet: RDNA 2.0 (2020−2025) on 7nm gives it a newer hardware base for upcoming games.
✅Draws 100W instead of 295W, a 195W reduction.

Trade-offs

❌Lower G3D Mark per dollar, at 0 vs 28.0 G3D/$ (Unknown MSRP vs $499 MSRP).

Radeon RX Vega 64

2017

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 28.0 vs 0 G3D/$ ($499 MSRP vs Unknown MSRP).

Trade-offs

❌Lower average FPS than Radeon RX 6600M across 50 tracked games in our benchmark data.
❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌2017 hardware with 8 GB of VRAM already sits in legacy territory for modern games.
❌195% higher power demand at 295W vs 100W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon RX 6600M is the faster gaming card right now. In our data, it leads by 0.2% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon RX Vega 64 instead at 13,949 vs 13,922, so for this question the real-game FPS result matters more than the synthetic split.

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

Radeon RX 6600M is the safer long-term pick for 2026 and beyond. The case is simple: native frame generation with FSR Frame Generation + AFMF (2023), while Radeon RX Vega 64 has no comparable frame-generation support, a 7nm process instead of 14nm, 28 vs 0 ray-tracing units, and a newer 2021 generation instead of 2017. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Radeon RX Vega 64 makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and lighter 1440p, Radeon RX Vega 64 is the easier value choice. If you care more about 1080p and lighter 1440p headroom, Radeon RX 6600M has the stronger long-term case.

Radeon RX 6600M vs Radeon RX Vega 64 Technical Specifications

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

Radeon RX 6600M

The Radeon RX 6600M is manufactured by AMD. It was released in May 31 2021. It features the RDNA 2.0 architecture. The core clock ranges from 2068 MHz to 2416 MHz. It has 1792 shading units. The thermal design power (TDP) is 100W. Manufactured using 7 nm process technology. It features 28 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 13,922 points.

Radeon RX Vega 64

The Radeon RX Vega 64 is manufactured by AMD. It was released in August 7 2017. It features the GCN 5.0 architecture. The core clock ranges from 1247 MHz to 1546 MHz. It has 4096 shading units. The thermal design power (TDP) is 295W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 13,949 points. Launch price was $499.

⚡

Graphics Performance

The Radeon RX 6600M scores 13,922 and the Radeon RX Vega 64 reaches 13,949 in the G3D Mark benchmark — just a 0.2% difference, making them near-identical in rasterization performance. The Radeon RX 6600M is built on RDNA 2.0 while the Radeon RX Vega 64 uses GCN 5.0, both on 7 nm vs 14 nm. Shader units: 1,792 (Radeon RX 6600M) vs 4,096 (Radeon RX Vega 64). Raw compute: 8.659 TFLOPS (Radeon RX 6600M) vs 12.66 TFLOPS (Radeon RX Vega 64). Boost clocks: 2416 MHz vs 1546 MHz.

Feature	Radeon RX 6600M	Radeon RX Vega 64
G3D Mark Score	13,922	13,949
Architecture	RDNA 2.0	GCN 5.0
Process Node	7 nm	14 nm
Shading Units	1792	4096+129%
Compute (TFLOPS)	8.659 TFLOPS	12.66 TFLOPS+46%
Boost Clock	2416 MHz+56%	1546 MHz
ROPs	64	64
TMUs	112	256+129%
L1 Cache	0.5 MB	1 MB+100%
L2 Cache	2 MB	4 MB+100%
Frame Generation	FSR 3 + AFMF	FSR upscaling

✨

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 6600M is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The Radeon RX Vega 64 does not have comparable native support in the same tier.

Feature	Radeon RX 6600M	Radeon RX Vega 64
Upscaling Tech	FSR 3	FSR Upscaling / FSR 4
Frame Generation	FSR Frame Generation + AFMF	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 8 GB of video memory. Memory bandwidth: 224 GB/s (Radeon RX 6600M) vs 484 GB/s (Radeon RX Vega 64) — a 116.1% advantage for the Radeon RX Vega 64. Memory bus width is 128-bit on the Radeon RX 6600M and 2048-bit on the Radeon RX Vega 64. L2 Cache: 2 MB (Radeon RX 6600M) vs 4 MB (Radeon RX Vega 64) — the Radeon RX Vega 64 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon RX 6600M	Radeon RX Vega 64
VRAM Capacity	8 GB	8 GB
Memory Type	GDDR6	HBM2
Memory Bandwidth	224 GB/s	484 GB/s+116%
Bus Width	128-bit	2048-bit+1500%
L2 Cache	2 MB	4 MB+100%

🖥️

Display & API Support

DirectX support: 12 (FL 12_2) (Radeon RX 6600M) vs 12.1 (Radeon RX Vega 64). Vulkan: 1.3 vs 1.1. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

Feature	Radeon RX 6600M	Radeon RX Vega 64
DirectX	12 (FL 12_2)	12.1
Vulkan	1.3+18%	1.1
OpenGL	4.6	4.6
Max Displays	4	4

🎬

Media & Encoding

Hardware encoder: VCN 3.0 (Radeon RX 6600M) vs VCE 4.0 (Radeon RX Vega 64). Decoder: VCN 3.0 vs UVD 7.0. Supported codecs: H.264,HEVC,VP9,AV1 (Radeon RX 6600M) vs MPEG-2,H.264,HEVC,VP9 (Radeon RX Vega 64).

Feature	Radeon RX 6600M	Radeon RX Vega 64
Encoder	VCN 3.0	VCE 4.0
Decoder	VCN 3.0	UVD 7.0
Codecs	H.264,HEVC,VP9,AV1	MPEG-2,H.264,HEVC,VP9

🔌

Power & Dimensions

The Radeon RX 6600M draws 100W versus the Radeon RX Vega 64's 295W — a 98.7% difference. The Radeon RX 6600M is more power-efficient. Recommended PSU: 500W (Radeon RX 6600M) vs 750W (Radeon RX Vega 64). Power connectors: Mobile vs 2x 8-pin.

Feature	Radeon RX 6600M	Radeon RX Vega 64
TDP	100W-66%	295W
Recommended PSU	500W-33%	750W
Power Connector	Mobile	2x 8-pin
Length	—	267mm
Height	—	111mm
Slots	0-100%	2
Temp (Load)	—	85°C
Perf/Watt	139.2+194%	47.3

💰

Value Analysis

The newer card here is Radeon RX 6600M (2021 vs 2017).

Feature	Radeon RX 6600M	Radeon RX Vega 64
MSRP	—	$499
Codename	Navi 23	Vega 10
Release	May 31 2021	August 7 2017
Ranking	#173	#171

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