Radeon HD 6870 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.

Radeon HD 6870 vs RadeonT 660M 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 6870 vs RadeonT 660M: 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 6870

2010

Why buy it

✅34.5% more average FPS across 50 tracked games in our benchmark data.
✅Delivers 100+% more G3D Mark for each dollar spent, at 9.2 vs 0 G3D/$ ($239 MSRP vs Unknown MSRP).

Trade-offs

❌2010 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌277.5% higher power demand at 151W vs 40W.

RadeonT 660M

2023

Why buy it

✅Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.
✅Draws 40W instead of 151W, a 111W reduction.
✅More future proof: RDNA 2.0 (2020−2025) on 6nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than Radeon HD 6870 across 50 tracked games in our benchmark data.
❌Lower G3D Mark per dollar, at 0 vs 9.2 G3D/$ (Unknown MSRP vs $239 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 6870 is the faster gaming card right now. In our data, it leads by 34.5% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward RadeonT 660M instead at 2,221 vs 2,206, so for this question the real-game FPS result matters more than the synthetic split.

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

RadeonT 660M is the safer long-term pick for 2026 and beyond. The case is simple: a 6nm process instead of 40nm, 6 vs 0 ray-tracing units, and a newer 2023 generation instead of 2010. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Radeon HD 6870 makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, Radeon HD 6870 is the easier value choice. If you care more about 1080p and some 1440p headroom, RadeonT 660M has the stronger long-term case.

Radeon HD 6870 vs RadeonT 660M Technical Specifications

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

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.

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.

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Graphics Performance

The Radeon HD 6870 scores 2,206 and the RadeonT 660M reaches 2,221 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The Radeon HD 6870 is built on TeraScale 2 while the RadeonT 660M uses RDNA 2.0, both on 40 nm vs 6 nm. Shader units: 1,120 (Radeon HD 6870) vs 384 (RadeonT 660M). Raw compute: 2.016 TFLOPS (Radeon HD 6870) vs 1.459 TFLOPS (RadeonT 660M). Boost clocks: 900 MHz vs 1900 MHz.

Feature	Radeon HD 6870	RadeonT 660M
G3D Mark Score	2,206	2,221
Architecture	TeraScale 2	RDNA 2.0
Process Node	40 nm	6 nm
Shading Units	1120+192%	384
Compute (TFLOPS)	2.016 TFLOPS+38%	1.459 TFLOPS
Boost Clock	900 MHz	1900 MHz+111%
ROPs	32+100%	16
TMUs	56+133%	24
L1 Cache	224 KB+75%	128 KB
L2 Cache	0.5 MB	2 MB+300%
Frame Generation	FSR upscaling	FSR upscaling + RSR

✨

Advanced Features (DLSS/FSR)

Feature	Radeon HD 6870	RadeonT 660M
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

💾

Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 128-bit on the Radeon HD 6870 and 64-bit on the RadeonT 660M. L2 Cache: 0.5 MB (Radeon HD 6870) vs 2 MB (RadeonT 660M) — the RadeonT 660M has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 6870	RadeonT 660M
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	0.5 MB	2 MB+300%

🖥️

Display & API Support

DirectX support: 11.0 (Radeon HD 6870) vs 12 (12_2) (RadeonT 660M). Vulkan: N/A vs 1.3. OpenGL: 4.4 vs 4.6. Maximum simultaneous displays: 6 vs 3.

Feature	Radeon HD 6870	RadeonT 660M
DirectX	11.0	12 (12_2)+9%
Vulkan	N/A	1.3
OpenGL	4.4	4.6+5%
Max Displays	6+100%	3

🎬

Media & Encoding

Hardware encoder: None (Radeon HD 6870) vs VCN 3.0 (RadeonT 660M). Decoder: UVD 3.0 vs VCN 3.0. Supported codecs: MPEG-2,VC-1,H.264,MPEG-4,MVC (Radeon HD 6870) vs H.264,H.265,VP9,AV1,JPEG (RadeonT 660M).

Feature	Radeon HD 6870	RadeonT 660M
Encoder	None	VCN 3.0
Decoder	UVD 3.0	VCN 3.0
Codecs	MPEG-2,VC-1,H.264,MPEG-4,MVC	H.264,H.265,VP9,AV1,JPEG

🔌

Power & Dimensions

The Radeon HD 6870 draws 151W versus the RadeonT 660M's 40W — a 116.2% difference. The RadeonT 660M is more power-efficient. Recommended PSU: 500W (Radeon HD 6870) vs 350W (RadeonT 660M). Power connectors: 2x 6-pin vs PCIe-powered.

Feature	Radeon HD 6870	RadeonT 660M
TDP	151W	40W-74%
Recommended PSU	500W	350W-30%
Power Connector	2x 6-pin	PCIe-powered
Length	247mm	—
Height	111mm	—
Slots	2	—
Temp (Load)	85	—
Perf/Watt	14.6	55.5+280%

💰

Value Analysis

The newer card here is RadeonT 660M (2023 vs 2010).

Feature	Radeon HD 6870	RadeonT 660M
MSRP	$239	—
Codename	Barts	Rembrandt+
Release	October 21 2010	January 3 2023
Ranking	#661	#565

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