Quadro K620 vs RadeonT 660M

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.

Quadro K620 vs RadeonT 660M 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.

Quadro K620 vs RadeonT 660M: Pros, Cons & Final Verdict

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

Quadro K620

2014

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 14.8 vs 0 G3D/$ ($150 MSRP vs Unknown MSRP).

Trade-offs

❌Lower average FPS than RadeonT 660M across 50 tracked games in our benchmark data.
❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

RadeonT 660M

2023

Why buy it

✅10.4% more average FPS across 50 tracked games in our benchmark data.
✅Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.
✅More future proof: RDNA 2.0 (2020−2025) on 6nm with a newer platform for upcoming games.

Trade-offs

❌Lower G3D Mark per dollar, at 0 vs 14.8 G3D/$ (Unknown MSRP vs $150 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

RadeonT 660M is the faster gaming card right now. In our data, it leads by 10.4% in average FPS across 50 tracked games in our benchmark data and by 0.4% in PassMark G3D (2,221 vs 2,213), so the answer here is pretty clean.

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

RadeonT 660M is the safer long-term pick for 2026 and beyond. The case is simple: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack, a 6nm process instead of 28nm, 6 vs 0 ray-tracing units, and a newer 2023 generation instead of 2014. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Quadro K620 makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, Quadro K620 is the easier value choice. If you care more about 1080p and some 1440p headroom, RadeonT 660M has the stronger long-term case.

Quadro K620 vs RadeonT 660M Technical Specifications

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

Quadro K620

The Quadro K620 is manufactured by NVIDIA. It was released in July 22 2014. It features the Maxwell architecture. The core clock ranges from 1058 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,213 points. Launch price was $189.89.

RadeonT 660M

The RadeonT 660M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 1500 MHz to 1900 MHz. It has 384 shading units. The thermal design power (TDP) is 40W. Manufactured using 6 nm process technology. It features 6 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 2,221 points.

⚡

Graphics Performance

The Quadro K620 scores 2,213 and the RadeonT 660M reaches 2,221 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The Quadro K620 is built on Maxwell while the RadeonT 660M uses RDNA 2.0, both on 28 nm vs 6 nm. Shader units: 384 (Quadro K620) vs 384 (RadeonT 660M). Raw compute: 0.8632 TFLOPS (Quadro K620) vs 1.459 TFLOPS (RadeonT 660M). Boost clocks: 1124 MHz vs 1900 MHz.

Feature	Quadro K620	RadeonT 660M
G3D Mark Score	2,213	2,221
Architecture	Maxwell	RDNA 2.0
Process Node	28 nm	6 nm
Shading Units	384	384
Compute (TFLOPS)	0.8632 TFLOPS	1.459 TFLOPS+69%
Boost Clock	1124 MHz	1900 MHz+69%
ROPs	16	16
TMUs	24	24
L1 Cache	192 KB+50%	128 KB
L2 Cache	2 MB	2 MB

✨

Advanced Features (DLSS/FSR)

Feature	Quadro K620	RadeonT 660M
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 64-bit on the Quadro K620 and 64-bit on the RadeonT 660M.

Feature	Quadro K620	RadeonT 660M
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	2 MB	2 MB

🔌

Power & Dimensions

The Quadro K620 draws 45W versus the RadeonT 660M's 40W — a 11.8% difference. The RadeonT 660M is more power-efficient. Recommended PSU: 350W (Quadro K620) vs 350W (RadeonT 660M). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Quadro K620	RadeonT 660M
TDP	45W	40W-11%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Perf/Watt	49.2	55.5+13%

💰

Value Analysis

The newer card here is RadeonT 660M (2023 vs 2014).

Feature	Quadro K620	RadeonT 660M
MSRP	$150	—
Codename	GM107	Rembrandt+
Release	July 22 2014	January 3 2023
Ranking	#660	#565

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