Quadro NVS 420 vs Radeon X1800 GTO

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 NVS 420 vs Radeon X1800 GTO 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 NVS 420 vs Radeon X1800 GTO: 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 NVS 420

2018

Why buy it

✅700% more VRAM for high-resolution textures and newer games (4 GB vs 512 MB).
✅Draws 100W instead of 300W, a 200W reduction.

Trade-offs

❌2018 hardware with 4 GB of VRAM already sits in legacy territory for modern games.
❌Lower G3D Mark per dollar, at 0 vs 0.6 G3D/$ (Unknown MSRP vs $249 MSRP).

Radeon X1800 GTO

2020

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 0.6 vs 0 G3D/$ ($249 MSRP vs Unknown MSRP).
✅Quadro NVS 420 is already legacy-tier future-proofing, so Radeon X1800 GTO is the less risky modern option long term.
✅More future proof: RDNA 2.0 (2020−2025) on 7nm with a newer platform for upcoming games.

Trade-offs

❌Less VRAM, with 512 MB vs 4 GB for high-resolution textures and newer games.
❌Older hardware, 512 MB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌200% higher power demand at 300W vs 100W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon X1800 GTO is the faster gaming card right now based on the synthetic data we have. It leads by 2.9% in PassMark G3D (141 vs 137), which is the best performance signal available in this matchup.

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

Radeon X1800 GTO 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 7nm process instead of 16nm, 72 vs 0 ray-tracing units, and a newer 2020 generation instead of 2018. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Radeon X1800 GTO makes the most sense today based on the pricing and value data we have for this matchup.

Quadro NVS 420 vs Radeon X1800 GTO Technical Specifications

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

Quadro NVS 420

The Quadro NVS 420 is manufactured by NVIDIA. It was released in February 21 2018. It features the Pascal architecture. The core clock ranges from 1227 MHz to 1647 MHz. It has 2304 shading units. The thermal design power (TDP) is 100W. Manufactured using 16 nm process technology. G3D Mark benchmark score: 137 points.

Radeon X1800 GTO

The Radeon X1800 GTO is manufactured by AMD. It was released in October 28 2020. It features the RDNA 2.0 architecture. The core clock ranges from 1825 MHz to 2250 MHz. It has 4608 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 72 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 141 points. Launch price was $649.

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Graphics Performance

The Quadro NVS 420 scores 137 and the Radeon X1800 GTO reaches 141 in the G3D Mark benchmark — just a 2.9% difference, making them near-identical in rasterization performance. The Quadro NVS 420 is built on Pascal while the Radeon X1800 GTO uses RDNA 2.0, both on 16 nm vs 7 nm. Shader units: 2,304 (Quadro NVS 420) vs 4,608 (Radeon X1800 GTO). Raw compute: 7.589 TFLOPS (Quadro NVS 420) vs 20.74 TFLOPS (Radeon X1800 GTO). Boost clocks: 1647 MHz vs 2250 MHz.

Feature	Quadro NVS 420	Radeon X1800 GTO
G3D Mark Score	137	141+3%
Architecture	Pascal	RDNA 2.0
Process Node	16 nm	7 nm
Shading Units	2304	4608+100%
Compute (TFLOPS)	7.589 TFLOPS	20.74 TFLOPS+173%
Boost Clock	1647 MHz	2250 MHz+37%
ROPs	64	128+100%
TMUs	144	288+100%
L1 Cache	0.84 MB	1 MB+19%
L2 Cache	2 MB	4 MB+100%

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Advanced Features (DLSS/FSR)

Feature	Quadro NVS 420	Radeon X1800 GTO
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

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Video Memory (VRAM)

The Quadro NVS 420 has 4 GB of VRAM, while the Radeon X1800 GTO carries 512 MB. Quadro NVS 420 gives you 700% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Quadro NVS 420 and 64-bit on the Radeon X1800 GTO. L2 Cache: 2 MB (Quadro NVS 420) vs 4 MB (Radeon X1800 GTO) — the Radeon X1800 GTO has significantly larger on-die cache to reduce VRAM reliance.

Feature	Quadro NVS 420	Radeon X1800 GTO
VRAM Capacity	4 GB+700%	0.5 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	2 MB	4 MB+100%

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Power & Dimensions

The Quadro NVS 420 draws 100W versus the Radeon X1800 GTO's 300W — a 100% difference. The Quadro NVS 420 is more power-efficient. Recommended PSU: 350W (Quadro NVS 420) vs 350W (Radeon X1800 GTO). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Quadro NVS 420	Radeon X1800 GTO
TDP	100W-67%	300W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	160mm	—
Slots	1	—
Perf/Watt	1.4+180%	0.5

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Value Analysis

At launch, the Quadro NVS 420 came in at $0, while the Radeon X1800 GTO launched at $249. On MSRP, Quadro NVS 420 was 100+% cheaper ($249 less). Performance per dollar on MSRP (G3D Mark / MSRP): Infinity (Quadro NVS 420) vs 0.6 (Radeon X1800 GTO) — the Quadro NVS 420 offers Infinity% better value. The newer card here is Radeon X1800 GTO (2020 vs 2018).

Feature	Quadro NVS 420	Radeon X1800 GTO
MSRP	$0-100%	$249
Performance per Dollar	Infinity	0.6
Codename	GP104	Navi 21
Release	February 21 2018	October 28 2020
Ranking	#266	#42

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