Radeon HD 7660D vs Radeon HD 8670M

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.

Radeon HD 7660D vs Radeon HD 8670M FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

Radeon HD 7660D vs Radeon HD 8670M: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon HD 7660D

2012

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 4.2 vs 0 G3D/$ ($122 MSRP vs Unknown MSRP).
✅Draws 45W instead of 100W, a 55W reduction.

Trade-offs

❌Lower average FPS than Radeon HD 8670M across 50 tracked games in our benchmark data.
❌Less VRAM, with 512 MB vs 1 GB for high-resolution textures and newer games.
❌2012 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon HD 8670M

2013

Why buy it

✅76.6% more average FPS across 50 tracked games in our benchmark data.
✅100% more VRAM for high-resolution textures and newer games (1 GB vs 512 MB).
✅More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

❌2013 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌Lower G3D Mark per dollar, at 0 vs 4.2 G3D/$ (Unknown MSRP vs $122 MSRP).
❌122.2% higher power demand at 100W vs 45W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 8670M is the faster gaming card right now. In our data, it leads by 76.6% in average FPS across 50 tracked games in our benchmark data and by 1.6% in PassMark G3D (520 vs 512), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

Radeon HD 7660D is the safer long-term pick for 2026 and beyond because it comes out ahead on the available hardware-headroom signals for this matchup.

Which GPU is the better buy today?

Radeon HD 7660D makes the most sense today based on the pricing and value data we have for this matchup. Radeon HD 8670M still makes more sense if max raw gaming performance matters more than value.

Radeon HD 7660D vs Radeon HD 8670M Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Radeon HD 7660D

The Radeon HD 7660D is manufactured by AMD. It was released in January 5 2012. It features the TeraScale 2 architecture. The core clock speed is 600 MHz. It has 480 shading units. The thermal design power (TDP) is 45W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 512 points.

Radeon HD 8670M

The Radeon HD 8670M is manufactured by AMD. It was released in May 14 2013. It features the GCN 1.0 architecture. The core clock ranges from 850 MHz to 900 MHz. It has 1280 shading units. The thermal design power (TDP) is 100W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 520 points.

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Graphics Performance

The Radeon HD 7660D scores 512 and the Radeon HD 8670M reaches 520 in the G3D Mark benchmark — just a 1.6% difference, making them near-identical in rasterization performance. The Radeon HD 7660D is built on TeraScale 2 while the Radeon HD 8670M uses GCN 1.0, both on 40 nm vs 28 nm. Shader units: 480 (Radeon HD 7660D) vs 1,280 (Radeon HD 8670M). Raw compute: 0.576 TFLOPS (Radeon HD 7660D) vs 2.304 TFLOPS (Radeon HD 8670M).

Feature	Radeon HD 7660D	Radeon HD 8670M
G3D Mark Score	512	520+2%
Architecture	TeraScale 2	GCN 1.0
Process Node	40 nm	28 nm
Shading Units	480	1280+167%
Compute (TFLOPS)	0.576 TFLOPS	2.304 TFLOPS+300%
ROPs	8	32+300%
TMUs	24	80+233%
L1 Cache	48 KB	320 KB+567%
L2 Cache	256 KB	512 KB+100%
Frame Generation	FSR upscaling	FSR upscaling

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Advanced Features (DLSS/FSR)

Feature	Radeon HD 7660D	Radeon HD 8670M
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

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Video Memory (VRAM)

The Radeon HD 7660D has 512 MB of VRAM, while the Radeon HD 8670M carries 1 GB. Radeon HD 8670M gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the Radeon HD 7660D and System on the Radeon HD 8670M. L2 Cache: 256 KB (Radeon HD 7660D) vs 512 KB (Radeon HD 8670M) — the Radeon HD 8670M has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 7660D	Radeon HD 8670M
VRAM Capacity	0.5 GB	1 GB+100%
Memory Type	GDDR5	Shared
Memory Bandwidth	Unknown	System
Bus Width	128-bit	System
L2 Cache	256 KB	512 KB+100%

🔌

Power & Dimensions

The Radeon HD 7660D draws 45W versus the Radeon HD 8670M's 100W — a 75.9% difference. The Radeon HD 7660D is more power-efficient. Recommended PSU: 350W (Radeon HD 7660D) vs 350W (Radeon HD 8670M). Power connectors: 1x 6-pin vs 1x 6-pin.

Feature	Radeon HD 7660D	Radeon HD 8670M
TDP	45W-55%	100W
Recommended PSU	350W	350W
Power Connector	1x 6-pin	1x 6-pin
Slots	0	—
Temp (Load)	70°C	—
Perf/Watt	11.4+119%	5.2

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Value Analysis

The newer card here is Radeon HD 8670M (2013 vs 2012).

Feature	Radeon HD 7660D	Radeon HD 8670M
MSRP	$122	—
Codename	Turks	Neptune
Release	January 5 2012	May 14 2013
Ranking	#870	#507

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