Iris Plus Graphics 655 vs Radeon R6 M340DX

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.

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

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

⚠️ Generational Difference

The Iris Plus Graphics 655 uses modern memory architecture. The Iris Plus Graphics 655 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon R6 M340DX lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The Radeon R6 M340DX is the superior choice for raw performance. It leads with a 4.1% higher G3D Mark score and 100+% more VRAM (512 MB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Plus Graphics 655.

Insight	Iris Plus Graphics 655	Radeon R6 M340DX
Performance	❌Lower raw frame rates (-4.1%)	✅Leading raw performance (+4.1%)
Longevity	🛑Obsolete Architecture (2018 / Generation 9.5 (2016−2020))	🛑Obsolete Architecture (2015 / GCN 1.0 (2012−2020))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100+%)
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	—	📏 Compact / SFF Friendly

💎 Value Proposition

While current pricing data is unavailable, the Radeon R6 M340DX remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.

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.

Iris Plus Graphics 655 Benchmark Check

Radeon R6 M340DX Benchmark Check

Technical Specifications

Side-by-side comparison of Iris Plus Graphics 655 and Radeon R6 M340DX

Iris Plus Graphics 655

The Iris Plus Graphics 655 is manufactured by Intel. It was released in April 3 2018. It features the Generation 9.5 architecture. The core clock ranges from 300 MHz to 1050 MHz. It has 384 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+++ process technology. G3D Mark benchmark score: 1,729 points.

Radeon R6 M340DX

The Radeon R6 M340DX is manufactured by AMD. It was released in December 12 2015. It features the GCN 1.0 architecture. The core clock ranges from 955 MHz to 1030 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,800 points.

⚡

Graphics Performance

The Iris Plus Graphics 655 scores 1,729 and the Radeon R6 M340DX reaches 1,800 in the G3D Mark benchmark — just a 4.1% difference, making them near-identical in rasterization performance. The Iris Plus Graphics 655 is built on Generation 9.5 while the Radeon R6 M340DX uses GCN 1.0, both on 14 nm+++ vs 28 nm. Shader units: 384 (Iris Plus Graphics 655) vs 384 (Radeon R6 M340DX). Raw compute: 0.8064 TFLOPS (Iris Plus Graphics 655) vs 0.791 TFLOPS (Radeon R6 M340DX). Boost clocks: 1050 MHz vs 1030 MHz.

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
G3D Mark Score	1,729	1,800+4%
Architecture	Generation 9.5	GCN 1.0
Process Node	14 nm+++	28 nm
Shading Units	384	384
Compute (TFLOPS)	0.8064 TFLOPS+2%	0.791 TFLOPS
Boost Clock	1050 MHz+2%	1030 MHz
ROPs	6	8+33%
TMUs	48+100%	24

✨

Advanced Features (DLSS/FSR)

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The Iris Plus Graphics 655 comes with 0 MB of VRAM, while the Radeon R6 M340DX has 512 MB. The Radeon R6 M340DX offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 64-bit.

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
VRAM Capacity	Shared System RAM	0.5 GB
Memory Type	Shared	GDDR5
Bus Width	System	64-bit

🖥️

Display & API Support

DirectX support: 12 (12_1) (Iris Plus Graphics 655) vs 12_0 (Radeon R6 M340DX). Maximum simultaneous displays: 3 vs 0.

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
DirectX	12 (12_1)	12_0
Max Displays	3	0

🎬

Media & Encoding

Hardware encoder: QuickSync (Iris Plus Graphics 655) vs VCE 2.0 (Radeon R6 M340DX). Decoder: QuickSync vs UVD 4.2.

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
Encoder	QuickSync	VCE 2.0
Decoder	QuickSync	UVD 4.2
Codecs	H.264,H.265,VP9	—

🔌

Power & Dimensions

The Iris Plus Graphics 655 draws 15W versus the Radeon R6 M340DX's 30W — a 66.7% difference. The Iris Plus Graphics 655 is more power-efficient. Recommended PSU: 1W (Iris Plus Graphics 655) vs 350W (Radeon R6 M340DX). Power connectors: Integrated vs PCIe-powered. Card length: 0mm vs 1mm, occupying 0 vs 0 slots.

Feature	Iris Plus Graphics 655	Radeon R6 M340DX
TDP	15W-50%	30W
Recommended PSU	1W-100%	350W
Power Connector	Integrated	PCIe-powered
Length	0mm	1mm
Height	0mm	—
Slots	0	0
Temp (Load)	85	—
Perf/Watt	115.3+92%	60.0

💰

Value Analysis

The Iris Plus Graphics 655 launched at $0 MSRP and currently averages $0, while the Radeon R6 M340DX launched at $0 and now averages $10. The Iris Plus Graphics 655 costs 100+% less ($10 savings) at current market prices. Performance per dollar (G3D Mark / price): Infinity (Iris Plus Graphics 655) vs 180.0 (Radeon R6 M340DX) — the Iris Plus Graphics 655 offers Infinity% better value. The Iris Plus Graphics 655 is the newer GPU (2018 vs 2015).