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.

Mobility Radeon HD 4870 vs Radeon HD 6670 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.

Mobility Radeon HD 4870 vs Radeon HD 6670: Pros, Cons & Final Verdict

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

Mobility Radeon HD 4870

2009

Why buy it

✅Draws 30W instead of 250W, a 220W reduction.

Trade-offs

❌Less VRAM, with 1 GB vs 2 GB for high-resolution textures and newer games.
❌2009 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
202% HIGHER MSRP
$299 MSRPvs$99 MSRP
❌Lower G3D Mark per dollar, at 2.4 vs 7.3 G3D/$ ($299 MSRP vs $99 MSRP).

Radeon HD 6670

2010

Why buy it

✅Costs $200 less on MSRP ($99 MSRP vs $299 MSRP).
✅Delivers 204.1% more G3D Mark for each dollar spent, at 7.3 vs 2.4 G3D/$ ($99 MSRP vs $299 MSRP).
✅100% more VRAM for high-resolution textures and newer games (2 GB vs 1 GB).

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.
❌733.3% higher power demand at 250W vs 30W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 6670 is the faster gaming card right now based on the synthetic data we have. It leads by 0.7% in PassMark G3D (725 vs 720), which is the best performance signal available in this matchup.

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

Mobility Radeon HD 4870 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 6670 makes the most sense to buy today. It is $200 cheaper on MSRP at $99 vs $299, and it leads G3D-per-dollar by 204.1% (7.3 vs 2.4), so the value case lines up with the gaming result. If you are mainly targeting 1080p and some 1440p, Radeon HD 6670 is the easier value choice. If you care more about 1080p and some 1440p headroom, Mobility Radeon HD 4870 has the stronger long-term case.

Mobility Radeon HD 4870 vs Radeon HD 6670 Technical Specifications

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

Mobility Radeon HD 4870

The Mobility Radeon HD 4870 is manufactured by AMD. It was released in January 9 2009. It features the TeraScale architecture. The core clock speed is 550 MHz. It has 800 shading units. The thermal design power (TDP) is 30W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 720 points.

Radeon HD 6670

The Radeon HD 6670 is manufactured by AMD. It was released in December 14 2010. It features the TeraScale 3 architecture. The boost clock speed is 880 MHz. It has 1536 shading units. The thermal design power (TDP) is 250W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 725 points. Launch price was $369.

⚡

Graphics Performance

The Mobility Radeon HD 4870 scores 720 and the Radeon HD 6670 reaches 725 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The Mobility Radeon HD 4870 is built on TeraScale while the Radeon HD 6670 uses TeraScale 3, both on 55 nm vs 40 nm. Shader units: 800 (Mobility Radeon HD 4870) vs 1,536 (Radeon HD 6670). Raw compute: 0.88 TFLOPS (Mobility Radeon HD 4870) vs 2.703 TFLOPS (Radeon HD 6670).

Feature	Mobility Radeon HD 4870	Radeon HD 6670
G3D Mark Score	720	725
Architecture	TeraScale	TeraScale 3
Process Node	55 nm	40 nm
Shading Units	800	1536+92%
Compute (TFLOPS)	0.88 TFLOPS	2.703 TFLOPS+207%
ROPs	16	32+100%
TMUs	40	96+140%
L1 Cache	160 KB	192 KB+20%
L2 Cache	256 KB	512 KB+100%
Frame Generation	FSR upscaling	FSR upscaling

✨

Advanced Features (DLSS/FSR)

Feature	Mobility Radeon HD 4870	Radeon HD 6670
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)

The Mobility Radeon HD 4870 has 1 GB of VRAM, while the Radeon HD 6670 carries 2 GB. Radeon HD 6670 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the Mobility Radeon HD 4870 and 128-bit on the Radeon HD 6670. L2 Cache: 256 KB (Mobility Radeon HD 4870) vs 512 KB (Radeon HD 6670) — the Radeon HD 6670 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Mobility Radeon HD 4870	Radeon HD 6670
VRAM Capacity	1 GB	2 GB+100%
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	64-bit	128-bit+100%
L2 Cache	256 KB	512 KB+100%

🖥️

Display & API Support

DirectX support: 10.1 (Mobility Radeon HD 4870) vs 11.2 (11_0) (Radeon HD 6670). OpenGL: 3.3 vs 4.4. Maximum simultaneous displays: 2 vs 3.

Feature	Mobility Radeon HD 4870	Radeon HD 6670
DirectX	10.1	11.2 (11_0)+11%
OpenGL	3.3	4.4+33%
Max Displays	2	3+50%

🎬

Media & Encoding

Decoder: UVD 2.0 vs UVD 3.0. Supported codecs: H.264,VC-1,MPEG-2 (Mobility Radeon HD 4870) vs H.264,VC-1,MPEG-2,MPEG-4 (Radeon HD 6670).

Feature	Mobility Radeon HD 4870	Radeon HD 6670
Encoder	—	None
Decoder	UVD 2.0	UVD 3.0
Codecs	H.264,VC-1,MPEG-2	H.264,VC-1,MPEG-2,MPEG-4

🔌

Power & Dimensions

The Mobility Radeon HD 4870 draws 30W versus the Radeon HD 6670's 250W — a 157.1% difference. The Mobility Radeon HD 4870 is more power-efficient. Recommended PSU: 350W (Mobility Radeon HD 4870) vs 250W (Radeon HD 6670). Power connectors: PCIe-powered vs None.

Feature	Mobility Radeon HD 4870	Radeon HD 6670
TDP	30W-88%	250W
Recommended PSU	350W	250W-29%
Power Connector	PCIe-powered	None
Length	—	168mm
Height	—	111mm
Slots	0-100%	1
Temp (Load)	—	75
Perf/Watt	24.0+728%	2.9

💰

Value Analysis

At launch, the Mobility Radeon HD 4870 came in at $299, while the Radeon HD 6670 launched at $99. On MSRP, Radeon HD 6670 was 66.9% cheaper ($200 less). Performance per dollar on MSRP (G3D Mark / MSRP): 2.4 (Mobility Radeon HD 4870) vs 7.3 (Radeon HD 6670) — the Radeon HD 6670 offers 204.2% better value. The newer card here is Radeon HD 6670 (2010 vs 2009).

Feature	Mobility Radeon HD 4870	Radeon HD 6670
MSRP	$299	$99-67%
Performance per Dollar	2.4	7.3+204%
Codename	M98	Cayman
Release	January 9 2009	December 14 2010
Ranking	#927	#596

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