Quadro K620 vs Radeon RX 640

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 Radeon RX 640 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 Radeon RX 640: 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

✅Costs $9 less on MSRP ($150 MSRP vs $159 MSRP).

Trade-offs

❌Lower average FPS than Radeon RX 640 across 50 tracked games in our benchmark data.
❌Less VRAM, with 2 GB vs 4 GB for high-resolution textures and newer games.
❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌2014 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon RX 640

2019

Why buy it

✅7.6% more average FPS across 50 tracked games in our benchmark data.
✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅100% more VRAM for high-resolution textures and newer games (4 GB vs 2 GB).
✅Quadro K620 is already obsolete for modern gaming, so Radeon RX 640 is the less risky modern option long term.

Trade-offs

❌Older hardware, 4 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌
6% HIGHER MSRP
$159 MSRPvs$150 MSRP

Quick Answers

Which GPU is faster for gaming right now?

Radeon RX 640 is the faster gaming card right now. In our data, it leads by 7.6% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Quadro K620 instead at 2,213 vs 2,172, 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 640 is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs 2 GB of VRAM, the newer feature stack, with FSR 3 (2023) and FSR Frame Generation + AFMF (2023), while Quadro K620 is limited to no meaningful modern upscaling stack and no comparable frame-generation support, a 14nm process instead of 28nm, and a newer 2019 generation instead of 2014. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

Quadro K620 makes the most sense to buy today. It is $9 cheaper on MSRP at $150 vs $159, and it leads G3D-per-dollar by 8% (14.8 vs 13.7), which is enough to swing the recommendation its way. 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, Radeon RX 640 has the stronger long-term case.

Quadro K620 vs Radeon RX 640 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.

Radeon RX 640

The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.

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Graphics Performance

The Quadro K620 scores 2,213 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 1.9% difference, making them near-identical in rasterization performance. The Quadro K620 is built on Maxwell while the Radeon RX 640 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 384 (Quadro K620) vs 640 (Radeon RX 640). Raw compute: 0.8632 TFLOPS (Quadro K620) vs 1.559 TFLOPS (Radeon RX 640). Boost clocks: 1124 MHz vs 1218 MHz.

Feature	Quadro K620	Radeon RX 640
G3D Mark Score	2,213+2%	2,172
Architecture	Maxwell	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	384	640+67%
Compute (TFLOPS)	0.8632 TFLOPS	1.559 TFLOPS+81%
Boost Clock	1124 MHz	1218 MHz+8%
ROPs	16	16
TMUs	24	40+67%
L1 Cache	192 KB+20%	160 KB
L2 Cache	2 MB+300%	0.5 MB

✨

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 640 is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The Quadro K620 does not have comparable native support in the same tier.

Feature	Quadro K620	Radeon RX 640
Upscaling Tech	Upscaling support	FSR 3
Frame Generation	Not Supported	FSR Frame Generation + AFMF
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The Quadro K620 has 2 GB of VRAM, while the Radeon RX 640 carries 4 GB. Radeon RX 640 gives you 100% 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 K620 and 128-bit on the Radeon RX 640. L2 Cache: 2 MB (Quadro K620) vs 0.5 MB (Radeon RX 640) — the Quadro K620 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Quadro K620	Radeon RX 640
VRAM Capacity	2 GB	4 GB+100%
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	128-bit+100%
L2 Cache	2 MB+300%	0.5 MB

🔌

Power & Dimensions

The Quadro K620 draws 45W versus the Radeon RX 640's 50W — a 10.5% difference. The Quadro K620 is more power-efficient. Recommended PSU: 350W (Quadro K620) vs 350W (Radeon RX 640). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Quadro K620	Radeon RX 640
TDP	45W-10%	50W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Slots	—	1
Perf/Watt	49.2+13%	43.4

💰

Value Analysis

At launch, the Quadro K620 came in at $150, while the Radeon RX 640 launched at $159. On MSRP, Quadro K620 was 5.7% cheaper ($9 less). Performance per dollar on MSRP (G3D Mark / MSRP): 14.8 (Quadro K620) vs 13.7 (Radeon RX 640) — the Quadro K620 offers 8% better value. The newer card here is Radeon RX 640 (2019 vs 2014).

Feature	Quadro K620	Radeon RX 640
MSRP	$150-6%	$159
Performance per Dollar	14.8+8%	13.7
Codename	GM107	Polaris 23
Release	July 22 2014	May 13 2019
Ranking	#660	#665

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