Radeon HD 7770 vs RadeonT 660M

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 RadeonT 660M

#53

Radeon RX 6850M XT

MSRP: $800|Avg: $800

97%

#216

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

484%

#218

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

439%

#219

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

438%

#223

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

398%

#224

Radeon RX 6300

MSRP: $60|Avg: $40

395%

#226

RadeonT 660M

MSRP: N/A|Avg: N/A

100%

#228

GeForce GT 750M Mac Edition

MSRP: $149|Avg: $40

99%

#230

Maxwell GPU Surface Book

MSRP: $150|Avg: $75

98%

#235

Radeon RX 540

MSRP: $99|Avg: $40

96%

#236

Radeon HD 6750M

MSRP: N/A|Avg: $60

95%

#237

Radeon HD 7570M

MSRP: N/A|Avg: $15

94%

#239

GeForce MX570 A

MSRP: $300|Avg: $300

92%

#240

Arc Graphics 130T

MSRP: $300|Avg: $250

92%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

⚠️ Generational Difference

The RadeonT 660M is significantly newer (2023 vs 2012). The RadeonT 660M likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The Radeon HD 7770 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The RadeonT 660M is the superior choice for raw performance. It leads with a 2.2% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7770.

Insight	Radeon HD 7770	RadeonT 660M
Performance	❌Lower raw frame rates (-2.2%)	✅Leading raw performance (+2.2%)
Longevity	🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020))	RDNA 2.0 (2020−2025) (6nm)
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+0%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	📏 Compact / SFF Friendly	—

💎 Value Proposition

While current pricing data is unavailable, the RadeonT 660M 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.

Radeon HD 7770 Benchmark Check

RadeonT 660M Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon HD 7770 and RadeonT 660M

Radeon HD 7770

The Radeon HD 7770 is manufactured by AMD. It was released in February 15 2012. It features the GCN 1.0 architecture. The core clock speed is 1000 MHz. It has 640 shading units. The thermal design power (TDP) is 80W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,173 points. Launch price was $159.

RadeonT 660M

The RadeonT 660M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 1500 MHz to 1900 MHz. It has 384 shading units. The thermal design power (TDP) is 40W. Manufactured using 6 nm process technology. It features 6 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 2,221 points.

⚡

Graphics Performance

The Radeon HD 7770 scores 2,173 and the RadeonT 660M reaches 2,221 in the G3D Mark benchmark — just a 2.2% difference, making them near-identical in rasterization performance. The Radeon HD 7770 is built on GCN 1.0 while the RadeonT 660M uses RDNA 2.0, both on 28 nm vs 6 nm. Shader units: 640 (Radeon HD 7770) vs 384 (RadeonT 660M). Raw compute: 1.28 TFLOPS (Radeon HD 7770) vs 1.459 TFLOPS (RadeonT 660M).

Feature	Radeon HD 7770	RadeonT 660M
G3D Mark Score	2,173	2,221+2%
Architecture	GCN 1.0	RDNA 2.0
Process Node	28 nm	6 nm
Shading Units	640+67%	384
Compute (TFLOPS)	1.28 TFLOPS	1.459 TFLOPS+14%
ROPs	16	16
TMUs	40+67%	24
L1 Cache	160 KB+25%	128 KB
L2 Cache	0.25 MB	2 MB+700%

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 7770	RadeonT 660M
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)

Both cards feature 2 GB of GDDR5. Bus width: 128-bit vs 64-bit. L2 Cache: 0.25 MB (Radeon HD 7770) vs 2 MB (RadeonT 660M) — the RadeonT 660M has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 7770	RadeonT 660M
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	0.25 MB	2 MB+700%

🖥️

Display & API Support

DirectX support: 12_0 (Radeon HD 7770) vs 12 (12_2) (RadeonT 660M). Maximum simultaneous displays: 4 vs 3.

Feature	Radeon HD 7770	RadeonT 660M
DirectX	12_0	12 (12_2)
Max Displays	4+33%	3

🎬

Media & Encoding

Hardware encoder: VCE 1.0 (Radeon HD 7770) vs VCN 3.0 (RadeonT 660M). Decoder: UVD 3.1 vs VCN 3.0. Supported codecs: H.264 (Radeon HD 7770) vs H.264,H.265,VP9,AV1,JPEG (RadeonT 660M).

Feature	Radeon HD 7770	RadeonT 660M
Encoder	VCE 1.0	VCN 3.0
Decoder	UVD 3.1	VCN 3.0
Codecs	H.264	H.264,H.265,VP9,AV1,JPEG

🔌

Power & Dimensions

The Radeon HD 7770 draws 80W versus the RadeonT 660M's 40W — a 66.7% difference. The RadeonT 660M is more power-efficient. Recommended PSU: 450W (Radeon HD 7770) vs 350W (RadeonT 660M). Power connectors: 1x 6-pin vs PCIe-powered.