GeForce GT 420M vs GeForce GT 620

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 GT 420M vs GeForce GT 620 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 GT 420M vs GeForce GT 620: 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 GT 420M

2012

Why buy it

✅Draws 32W instead of 65W, a 33W reduction.

Trade-offs

❌Lower average FPS than GeForce GT 620 across 50 tracked games in our benchmark data.
❌2012 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌Lower G3D Mark per dollar, at 0 vs 6.6 G3D/$ (Unknown MSRP vs $59 MSRP).

GeForce GT 620

2012

Why buy it

✅2.9% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 6.6 vs 0 G3D/$ ($59 MSRP vs Unknown MSRP).

Trade-offs

❌2012 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌103.1% higher power demand at 65W vs 32W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce GT 620 is the faster gaming card right now. In our data, it leads by 2.9% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward GeForce GT 420M instead at 392 vs 388, 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?

GeForce GT 420M 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?

GeForce GT 620 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, GeForce GT 620 is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce GT 420M has the stronger long-term case.

GeForce GT 420M vs GeForce GT 620 Technical Specifications

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

GeForce GT 420M

The GeForce GT 420M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 392 points.

GeForce GT 620

The GeForce GT 620 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 388 points. Launch price was $99.

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Graphics Performance

The GeForce GT 420M scores 392 and the GeForce GT 620 reaches 388 in the G3D Mark benchmark — just a 1% difference, making them near-identical in rasterization performance. The GeForce GT 420M is built on Kepler while the GeForce GT 620 uses Kepler, both on a 28 nm process. Shader units: 384 (GeForce GT 420M) vs 384 (GeForce GT 620). Raw compute: 0.48 TFLOPS (GeForce GT 420M) vs 0.6927 TFLOPS (GeForce GT 620).

Feature	GeForce GT 420M	GeForce GT 620
G3D Mark Score	392+1%	388
Architecture	Kepler	Kepler
Process Node	28 nm	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.48 TFLOPS	0.6927 TFLOPS+44%
ROPs	16	16
TMUs	32	32
L1 Cache	32 KB	32 KB
L2 Cache	256 KB	256 KB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GT 420M	GeForce GT 620
Upscaling Tech	Upscaling support	Upscaling support
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	NVIDIA Reflex

💾

Video Memory (VRAM)

Both cards ship with 512 MB of GDDR5. Memory bus width is 128-bit on the GeForce GT 420M and 128-bit on the GeForce GT 620.

Feature	GeForce GT 420M	GeForce GT 620
VRAM Capacity	0.5 GB	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	256 KB	256 KB

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 420M) vs 11.0 (GeForce GT 620). Vulkan: None vs None. OpenGL: 4.0 vs 4.2. Maximum simultaneous displays: 1 vs 3.

Feature	GeForce GT 420M	GeForce GT 620
DirectX	11.0	11.0
Vulkan	None	None
OpenGL	4.0	4.2+5%
Max Displays	1	3+200%

🎬

Media & Encoding

Hardware encoder: No (GeForce GT 420M) vs No (GeForce GT 620). Decoder: PureVideo HD VP4 vs PureVideo HD VP5. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 420M) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 620).

Feature	GeForce GT 420M	GeForce GT 620
Encoder	No	No
Decoder	PureVideo HD VP4	PureVideo HD VP5
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	MPEG-2,H.264,VC-1,MPEG-4 ASP

🔌

Power & Dimensions

The GeForce GT 420M draws 32W versus the GeForce GT 620's 65W — a 68% difference. The GeForce GT 420M is more power-efficient. Recommended PSU: 350W (GeForce GT 420M) vs 250W (GeForce GT 620). Power connectors: PCIe-powered vs None. Card length: 0mm vs 145mm, occupying 0 vs 1 slots. Typical load temperature: 75°C vs 70°C.

Feature	GeForce GT 420M	GeForce GT 620
TDP	32W-51%	65W
Recommended PSU	350W	250W-29%
Power Connector	PCIe-powered	None
Length	0mm	145mm
Height	0mm	111mm
Slots	0-100%	1
Temp (Load)	75°C	70°C-7%
Perf/Watt	12.3+105%	6.0