Radeon HD 7800-serie vs GeForce GTX 660

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

🚀 Performance Leadership

The GeForce GTX 660 is the superior choice for raw performance. It leads with a 0.3% higher G3D Mark score and 50% more VRAM (3 GB vs 2 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon HD 7800-serie.

Insight	Radeon HD 7800-serie	GeForce GTX 660
Performance	❌Lower raw frame rates (-0.3%)	✅Leading raw performance (+0.3%)
Longevity	🛑Obsolete Architecture (2012 / GCN 1.0 (2012−2020))	🛑Obsolete Architecture (2012 / Kepler (2012−2018))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+50%)
Efficiency	⚡ Higher Power Consumption	💡 Excellent Perf/Watt
Case Fit	—	📏 Compact / SFF Friendly

💎 Value Proposition

The GeForce GTX 660 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the GeForce GTX 660 holds the technical lead. Priced at $15 (vs $60), it costs 75% less, resulting in a 301.1% higher cost efficiency score.

Insight	Radeon HD 7800-serie	GeForce GTX 660
Cost Efficiency	❌Lower cost efficiency	✅Better overall value (+301.1%)
Upfront Cost	⚠️Higher upfront cost ($60)	✅More affordable ($15)

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 7800-serie Benchmark Check

GeForce GTX 660 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon HD 7800-serie and GeForce GTX 660

Radeon HD 7800-serie

The Radeon HD 7800-serie is manufactured by AMD. It was released in March 5 2012. It features the GCN 1.0 architecture. The core clock speed is 1000 MHz. It has 1280 shading units. The thermal design power (TDP) is 200W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,029 points. Launch price was $349.

GeForce GTX 660

The GeForce GTX 660 is manufactured by NVIDIA. It was released in September 6 2012. It features the Kepler architecture. The core clock ranges from 980 MHz to 1033 MHz. It has 960 shading units. The thermal design power (TDP) is 140W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,040 points. Launch price was $229.

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Graphics Performance

The Radeon HD 7800-serie scores 4,029 and the GeForce GTX 660 reaches 4,040 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The Radeon HD 7800-serie is built on GCN 1.0 while the GeForce GTX 660 uses Kepler, both on a 28 nm process. Shader units: 1,280 (Radeon HD 7800-serie) vs 960 (GeForce GTX 660). Raw compute: 2.56 TFLOPS (Radeon HD 7800-serie) vs 1.981 TFLOPS (GeForce GTX 660).

Feature	Radeon HD 7800-serie	GeForce GTX 660
G3D Mark Score	4,029	4,040
Architecture	GCN 1.0	Kepler
Process Node	28 nm	28 nm
Shading Units	1280+33%	960
Compute (TFLOPS)	2.56 TFLOPS+29%	1.981 TFLOPS
ROPs	32+33%	24
TMUs	80	80
L1 Cache	320 KB+300%	80 KB
L2 Cache	512 KB+33%	384 KB

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Advanced Features (DLSS/FSR)

Feature	Radeon HD 7800-serie	GeForce GTX 660
Upscaling Tech	FSR 1.0 (Software)	FSR 2.1 (Compatible)
Frame Generation	Not Supported	FSR 3 (Compatible)
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	Standard

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Video Memory (VRAM)

The Radeon HD 7800-serie comes with 2 GB of VRAM, while the GeForce GTX 660 has 3 GB. The GeForce GTX 660 offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 153.6 GB/s (Radeon HD 7800-serie) vs 144.2 GB/s (GeForce GTX 660) — a 6.5% advantage for the Radeon HD 7800-serie. Bus width: 256-bit vs 192-bit. L2 Cache: 512 KB (Radeon HD 7800-serie) vs 384 KB (GeForce GTX 660) — the Radeon HD 7800-serie has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 7800-serie	GeForce GTX 660
VRAM Capacity	2 GB	3 GB+50%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	153.6 GB/s+7%	144.2 GB/s
Bus Width	256-bit+33%	192-bit
L2 Cache	512 KB+33%	384 KB

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Power & Dimensions

The Radeon HD 7800-serie draws 200W versus the GeForce GTX 660's 140W — a 35.3% difference. The GeForce GTX 660 is more power-efficient. Recommended PSU: 500W (Radeon HD 7800-serie) vs 450W (GeForce GTX 660). Power connectors: 2x 6-pin vs 1x 6-pin.

Feature	Radeon HD 7800-serie	GeForce GTX 660
TDP	200W	140W-30%
Recommended PSU	500W	450W-10%
Power Connector	2x 6-pin	1x 6-pin
Length	—	241mm
Slots	—	2
Perf/Watt	20.1	28.9+44%

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Value Analysis

The Radeon HD 7800-serie launched at $349 MSRP and currently averages $60, while the GeForce GTX 660 launched at $229 and now averages $15. The GeForce GTX 660 costs 75% less ($45 savings) at current market prices. Performance per dollar (G3D Mark / price): 67.2 (Radeon HD 7800-serie) vs 269.3 (GeForce GTX 660) — the GeForce GTX 660 offers 300.7% better value.