Radeon HD 6790 vs Radeon R9 M275X / M375

Radeon HD 6790

2011Core: 840 MHz

Radeon R9 M275X / M375

2014Core: 900 MHzBoost: 925 MHz

Performance Spectrum - GPU

Radeon HD 6790

150

1,567

0.0%

Radeon R7 G

Radeon HD 6750

Radeon HD 8670D + HD 6670 Dual

Radeon R9 M275X / M375

1,575

+0.5%

Radeon R7 G

Radeon HD 8750M

Radeon HD 8670D + HD 6670 Dual

Radeon RX 9060 XT 8GB

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 R9 M275X / M375

#459

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

2068%

#461

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

1875%

#462

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

1870%

#466

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

1700%

#467

Radeon RX 6300

MSRP: $60|Avg: $40

1689%

#469

Radeon R9 M275X / M375

MSRP: $300|Avg: $300

100%

#470

Radeon HD 8650G + 8750M Dual

MSRP: $150|Avg: $30

100%

#471

Radeon R9 M370X

MSRP: $300|Avg: $100

100%

#472

Radeon HD 8280

MSRP: $50|Avg: $50

99%

#473

GeForce GTX 850A

MSRP: $150|Avg: $50

97%

#474

Radeon HD 8650G + HD 8600/8700M Dual

MSRP: $150|Avg: $150

97%

#475

Mobility Radeon HD 5730

MSRP: $100|Avg: $20

97%

#476

Radeon R7 A10-7700K

MSRP: $152|Avg: $118

97%

#477

Radeon HD 7660G + HD 8500M Dual

MSRP: $150|Avg: $30

96%

#479

Radeon HD 6990M Crossfire

MSRP: $699|Avg: $150

95%

#480

Radeon HD 8510G + 8500M Dual

MSRP: $120|Avg: $35

95%

#481

Radeon R5 M330

MSRP: $120|Avg: $20

95%

#482

Radeon HD 8650G + 7600M Dual

MSRP: $150|Avg: $40

94%

#483

GeForce GTX 760A

MSRP: $249|Avg: $40

94%

#484

Radeon R9 M270X

MSRP: $250|Avg: $40

92%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon R9 M275X / M375 is the superior choice for raw performance. It leads with a 0.5% higher G3D Mark score and 300% more VRAM (4 GB vs 1 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 6790.

Insight	Radeon HD 6790	Radeon R9 M275X / M375
Performance	❌Lower raw frame rates (-0.5%)	✅Leading raw performance (+0.5%)
Longevity	🛑Obsolete Architecture (2011 / TeraScale 2 (2009−2015))	🛑Obsolete Architecture (2014 / GCN 1.0 (2012−2020))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+300%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	📏 Compact / SFF Friendly	📏 Compact / SFF Friendly

💎 Value Proposition

The Radeon HD 6790 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon HD 6790 holds the technical lead. Priced at $149 (vs $300), it costs 50% less, resulting in a 100.3% higher cost efficiency score.

Insight	Radeon HD 6790	Radeon R9 M275X / M375
Cost Efficiency	✅Better overall value (+100.3%)	❌Lower cost efficiency
Upfront Cost	✅More affordable ($149)	⚠️Higher upfront cost ($300)

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 6790 Benchmark Check

Radeon R9 M275X / M375 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon HD 6790 and Radeon R9 M275X / M375

Radeon HD 6790

The Radeon HD 6790 is manufactured by AMD. It was released in April 4 2011. It features the TeraScale 2 architecture. The core clock speed is 840 MHz. It has 800 shading units. The thermal design power (TDP) is 150W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,567 points. Launch price was $149.

Radeon R9 M275X / M375

The Radeon R9 M275X / M375 is manufactured by AMD. It was released in January 28 2014. It features the GCN 1.0 architecture. The core clock ranges from 900 MHz to 925 MHz. It has 640 shading units. The thermal design power (TDP) is 75W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,575 points.

⚡

Graphics Performance

The Radeon HD 6790 scores 1,567 and the Radeon R9 M275X / M375 reaches 1,575 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The Radeon HD 6790 is built on TeraScale 2 while the Radeon R9 M275X / M375 uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 800 (Radeon HD 6790) vs 640 (Radeon R9 M275X / M375). Raw compute: 1.344 TFLOPS (Radeon HD 6790) vs 1.184 TFLOPS (Radeon R9 M275X / M375).

Feature	Radeon HD 6790	Radeon R9 M275X / M375
G3D Mark Score	1,567	1,575
Architecture	TeraScale 2	GCN 1.0
Process Node	40 nm	28 nm
Shading Units	800+25%	640
Compute (TFLOPS)	1.344 TFLOPS+14%	1.184 TFLOPS
ROPs	16	16
TMUs	40	40
L1 Cache	160 KB	160 KB
L2 Cache	512 KB+100%	256 KB

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 6790	Radeon R9 M275X / M375
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

The Radeon HD 6790 comes with 1 GB of VRAM, while the Radeon R9 M275X / M375 has 4 GB. The Radeon R9 M275X / M375 offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 512 KB (Radeon HD 6790) vs 256 KB (Radeon R9 M275X / M375) — the Radeon HD 6790 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 6790	Radeon R9 M275X / M375
VRAM Capacity	1 GB	4 GB+300%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	512 KB+100%	256 KB

🖥️

Display & API Support

DirectX support: 11.2 (11_0) (Radeon HD 6790) vs 12_0 (Radeon R9 M275X / M375). Maximum simultaneous displays: 3 vs 0.

Feature	Radeon HD 6790	Radeon R9 M275X / M375
DirectX	11.2 (11_0)	12_0+7%
Max Displays	3	0

🎬

Media & Encoding

Hardware encoder: None (Radeon HD 6790) vs VCE 2.0 (Radeon R9 M275X / M375). Decoder: UVD 3.0 vs UVD 4.2.

Feature	Radeon HD 6790	Radeon R9 M275X / M375
Encoder	None	VCE 2.0
Decoder	UVD 3.0	UVD 4.2
Codecs	H.264,VC-1,MPEG-2,MPEG-4	—

🔌

Power & Dimensions

The Radeon HD 6790 draws 150W versus the Radeon R9 M275X / M375's 75W — a 66.7% difference. The Radeon R9 M275X / M375 is more power-efficient. Recommended PSU: 450W (Radeon HD 6790) vs 350W (Radeon R9 M275X / M375). Power connectors: 2x 6-pin vs Mobile. Card length: 240mm vs 1mm, occupying 2 vs 0 slots.

Feature	Radeon HD 6790	Radeon R9 M275X / M375
TDP	150W	75W-50%
Recommended PSU	450W	350W-22%
Power Connector	2x 6-pin	Mobile
Length	240mm	1mm
Height	111mm	—
Slots	2	0-100%
Temp (Load)	80	—
Perf/Watt	10.4	21.0+102%

💰

Value Analysis

The Radeon HD 6790 launched at $149 MSRP and currently averages $149, while the Radeon R9 M275X / M375 launched at $300 and now averages $300. The Radeon HD 6790 costs 50.3% less ($151 savings) at current market prices. Performance per dollar (G3D Mark / price): 10.5 (Radeon HD 6790) vs 5.3 (Radeon R9 M275X / M375) — the Radeon HD 6790 offers 98.1% better value. The Radeon R9 M275X / M375 is the newer GPU (2014 vs 2011).