Radeon 820M vs Radeon RX 640

Radeon 820M

2024Boost: 2900 MHz

Radeon RX 640

2019Core: 1082 MHzBoost: 1218 MHz

Performance Spectrum - GPU

Radeon 820M

2,143

0.0%

Radeon RX 6750 GRE 12GB

Radeon RX 640

2,172

+1.4%

Radeon RX 6750 GRE 12GB

About G3D Mark

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money. The Radeon 820M is positioned at rank 62 and the Radeon RX 640 is on rank 323, so the Radeon 820M offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Radeon 820M

#19

Radeon RX 5600

MSRP: $229|Avg: $150

96%

#22

Radeon RX 7700

MSRP: $449|Avg: $399

92%

#52

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

203%

#54

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

184%

#55

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

183%

#59

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

167%

#60

Radeon RX 6300

MSRP: $60|Avg: $40

165%

#62

Radeon 820M

MSRP: N/A|Avg: $25

100%

#65

GeForce GTX 1650 with Max-Q Design

MSRP: N/A|Avg: $100

98%

#66

GeForce GTX 1050 with Max-Q Design

MSRP: N/A|Avg: $50

98%

#68

GeForce GTX 850M

MSRP: N/A|Avg: $40

95%

Based on actual market prices and performance benchmarks.

Performance Per Dollar Radeon RX 640

#313

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

795%

#315

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

720%

#316

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

719%

#320

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

653%

#321

Radeon RX 6300

MSRP: $60|Avg: $40

649%

#323

Radeon RX 640

MSRP: $159|Avg: $55

100%

#326

Iris Pro Graphics P580

MSRP: $150|Avg: $60

99%

#327

Radeon E8870PCIe

MSRP: $250|Avg: $200

99%

#330

Arc Graphics 140T

MSRP: $350|Avg: $300

94%

#331

Radeon 680M

MSRP: N/A|Avg: $80

94%

#333

GeForce 730A

MSRP: $60|Avg: $20

93%

#334

GeForce GT 745A

MSRP: $99|Avg: $20

91%

#335

GeForce 710A

MSRP: $35|Avg: $62

91%

#336

Radeon HD 8670D + HD 6670 Dual

MSRP: $100|Avg: $10

89%

#338

GeForce MX230

MSRP: $150|Avg: $150

89%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon RX 640 is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score and 100% more VRAM (4 GB vs 2 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon 820M.

Insight	Radeon 820M	Radeon RX 640
Performance	❌Lower raw frame rates (-1.4%)	✅Leading raw performance (+1.4%)
Longevity	RDNA 3+ (2024) (4nm)	GCN 4.0 (2016−2020) (14nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100%)
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	—	—

💎 Value Proposition

The Radeon 820M offers a compelling cost-to-performance ratio. Priced at $25 versus $55 for the Radeon RX 640, it costs 55% less. While it maintains basic entry-level capabilities, this results in a 117.1% higher cost efficiency score.

Insight	Radeon 820M	Radeon RX 640
Cost Efficiency	✅Better overall value (+117.1%)	❌Lower cost efficiency
Upfront Cost	✅More affordable ($25)	⚠️Higher upfront cost ($55)

Performance Check

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

Radeon 820M Benchmark Check

Radeon RX 640 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon 820M and Radeon RX 640

Radeon 820M

The Radeon 820M is manufactured by AMD. It was released in June 2 2024. It features the RDNA 3+ architecture. The boost clock speed is 2900 MHz. It has 128 shading units. The thermal design power (TDP) is 30W. Manufactured using 4 nm process technology. G3D Mark benchmark score: 2,143 points.

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.

⚡

Graphics Performance

The Radeon 820M scores 2,143 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The Radeon 820M is built on RDNA 3+ while the Radeon RX 640 uses GCN 4.0, both on 4 nm vs 14 nm. Shader units: 128 (Radeon 820M) vs 640 (Radeon RX 640). Boost clocks: 2900 MHz vs 1218 MHz.

Feature	Radeon 820M	Radeon RX 640
G3D Mark Score	2,143	2,172+1%
Architecture	RDNA 3+	GCN 4.0
Process Node	4 nm	14 nm
Shading Units	128	640+400%
Boost Clock	2900 MHz+138%	1218 MHz

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 640 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The Radeon 820M lacks specific hardware/driver support for this native frame generation tier.

Feature	Radeon 820M	Radeon RX 640
Upscaling Tech	FSR 1.0 (Software)	FSR 3 (Native)
Frame Generation	Not Supported	FSR 3 / AFMF (Driver)
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

The Radeon 820M comes with 2 GB of VRAM, while the Radeon RX 640 has 4 GB. The Radeon RX 640 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.

Feature	Radeon 820M	Radeon RX 640
VRAM Capacity	2 GB	4 GB+100%
Memory Type	Shared	GDDR5
Memory Bandwidth	System	Unknown
Bus Width	System	128-bit

🖥️

Display & API Support

DirectX support: 12 Ultimate (Radeon 820M) vs 12 (FL 12_0) (Radeon RX 640). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 6.

Feature	Radeon 820M	Radeon RX 640
DirectX	12 Ultimate	12 (FL 12_0)
Vulkan	1.3	1.3
OpenGL	4.6	4.6
Max Displays	4	6+50%

🎬

Media & Encoding

Hardware encoder: VCN 4.0 (Radeon 820M) vs VCE 3.4 (Radeon RX 640). Decoder: VCN 4.0 vs UVD 6.3. Supported codecs: H.264,H.265,AV1,VP9 (Radeon 820M) vs H.264,H.265/HEVC (Radeon RX 640).

Feature	Radeon 820M	Radeon RX 640
Encoder	VCN 4.0	VCE 3.4
Decoder	VCN 4.0	UVD 6.3
Codecs	H.264,H.265,AV1,VP9	H.264,H.265/HEVC

🔌

Power & Dimensions

The Radeon 820M draws 30W versus the Radeon RX 640's 50W — a 50% difference. The Radeon 820M is more power-efficient. Recommended PSU: 350W (Radeon 820M) vs 350W (Radeon RX 640). Power connectors: PCIe-powered vs PCIe-powered.

Feature	Radeon 820M	Radeon RX 640
TDP	30W-40%	50W
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	0mm	—
Height	0mm	—
Slots	0-100%	1
Temp (Load)	80	—
Perf/Watt	71.4+65%	43.4

💰

Value Analysis

The Radeon 820M costs 54.5% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 85.7 (Radeon 820M) vs 39.5 (Radeon RX 640) — the Radeon 820M offers 117% better value. The Radeon 820M is the newer GPU (2024 vs 2019).