Radeon HD 6870 vs Radeon RX 640

Radeon HD 6870

2010Boost: 900 MHz

Radeon RX 640

2019Core: 1082 MHzBoost: 1218 MHz

Performance Spectrum - GPU

Radeon HD 6870

151

2,206

+1.6%

Radeon HD 8670D + HD 6670 Dual

Radeon RX 9060 XT 16 GB

Radeon RX 640

2,172

0.0%

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.

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 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

⚠️ Generational Difference

The Radeon RX 640 is significantly newer (2019 vs 2010). The Radeon RX 640 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 6870 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The Radeon HD 6870 is the superior choice for raw performance. It leads with a 1.6% higher G3D Mark score. However, the Radeon RX 640 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	Radeon HD 6870	Radeon RX 640
Performance	✅Leading raw performance (+1.6%)	❌Lower raw frame rates (-1.6%)
Longevity	🛑Obsolete Architecture (2010 / TeraScale 2 (2009−2015))	GCN 4.0 (2016−2020) (14nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+100%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	Standard Size (247mm)	—

💎 Value Proposition

The Radeon HD 6870 offers a compelling cost-to-performance ratio. Priced at $50 versus $55 for the Radeon RX 640, it costs 9% less. While it maintains basic entry-level capabilities, this results in a 11.7% higher cost efficiency score.

Insight	Radeon HD 6870	Radeon RX 640
Cost Efficiency	✅Better overall value (+11.7%)	❌Lower cost efficiency
Upfront Cost	✅More affordable ($50)	⚠️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 HD 6870 Benchmark Check

Radeon RX 640 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon HD 6870 and Radeon RX 640

Radeon HD 6870

The Radeon HD 6870 is manufactured by AMD. It was released in October 21 2010. It features the TeraScale 2 architecture. The boost clock speed is 900 MHz. It has 1120 shading units. The thermal design power (TDP) is 151W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 2,206 points. Launch price was $239.

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 HD 6870 scores 2,206 and the Radeon RX 640 reaches 2,172 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The Radeon HD 6870 is built on TeraScale 2 while the Radeon RX 640 uses GCN 4.0, both on 40 nm vs 14 nm. Shader units: 1,120 (Radeon HD 6870) vs 640 (Radeon RX 640). Raw compute: 2.016 TFLOPS (Radeon HD 6870) vs 1.559 TFLOPS (Radeon RX 640). Boost clocks: 900 MHz vs 1218 MHz.

Feature	Radeon HD 6870	Radeon RX 640
G3D Mark Score	2,206+2%	2,172
Architecture	TeraScale 2	GCN 4.0
Process Node	40 nm	14 nm
Shading Units	1120+75%	640
Compute (TFLOPS)	2.016 TFLOPS+29%	1.559 TFLOPS
Boost Clock	900 MHz	1218 MHz+35%
ROPs	32+100%	16
TMUs	56+40%	40
L1 Cache	224 KB+40%	160 KB
L2 Cache	512 KB	512 KB

✨

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 HD 6870 lacks specific hardware/driver support for this native frame generation tier.

Feature	Radeon HD 6870	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 HD 6870 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: 128-bit vs 128-bit.

Feature	Radeon HD 6870	Radeon RX 640
VRAM Capacity	2 GB	4 GB+100%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	512 KB	512 KB

🖥️

Display & API Support

DirectX support: 11.0 (Radeon HD 6870) vs 12 (FL 12_0) (Radeon RX 640). Vulkan: N/A vs 1.3. OpenGL: 4.4 vs 4.6. Maximum simultaneous displays: 6 vs 6.

Feature	Radeon HD 6870	Radeon RX 640
DirectX	11.0	12 (FL 12_0)+9%
Vulkan	N/A	1.3
OpenGL	4.4	4.6+5%
Max Displays	6	6

🎬

Media & Encoding

Hardware encoder: None (Radeon HD 6870) vs VCE 3.4 (Radeon RX 640). Decoder: UVD 3.0 vs UVD 6.3. Supported codecs: MPEG-2,VC-1,H.264,MPEG-4,MVC (Radeon HD 6870) vs H.264,H.265/HEVC (Radeon RX 640).

Feature	Radeon HD 6870	Radeon RX 640
Encoder	None	VCE 3.4
Decoder	UVD 3.0	UVD 6.3
Codecs	MPEG-2,VC-1,H.264,MPEG-4,MVC	H.264,H.265/HEVC

🔌

Power & Dimensions

The Radeon HD 6870 draws 151W versus the Radeon RX 640's 50W — a 100.5% difference. The Radeon RX 640 is more power-efficient. Recommended PSU: 500W (Radeon HD 6870) vs 350W (Radeon RX 640). Power connectors: 2x 6-pin vs PCIe-powered.

Feature	Radeon HD 6870	Radeon RX 640
TDP	151W	50W-67%
Recommended PSU	500W	350W-30%
Power Connector	2x 6-pin	PCIe-powered
Length	247mm	—
Height	111mm	—
Slots	2	1-50%
Temp (Load)	85	—
Perf/Watt	14.6	43.4+197%

💰

Value Analysis

The Radeon HD 6870 launched at $239 MSRP and currently averages $50, while the Radeon RX 640 launched at $159 and now averages $55. The Radeon HD 6870 costs 9.1% less ($5 savings) at current market prices. Performance per dollar (G3D Mark / price): 44.1 (Radeon HD 6870) vs 39.5 (Radeon RX 640) — the Radeon HD 6870 offers 11.6% better value. The Radeon RX 640 is the newer GPU (2019 vs 2010).