Radeon HD 7770M vs Radeon HD 7870M

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 7770M vs Radeon HD 7870M 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 7770M vs Radeon HD 7870M: 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 7770M

2012

Why buy it

✅Draws 32W instead of 45W, a 13W reduction.

Trade-offs

❌Lower average FPS than Radeon HD 7870M across 50 tracked games in our benchmark data.
❌Less VRAM, with 512 MB vs 2 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 7870M

2012

Why buy it

✅19.8% more average FPS across 50 tracked games in our benchmark data.
✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
✅More future proof: GCN 1.0 (2012−2020) on 28nm with a newer platform for upcoming games.

Trade-offs

❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌40.6% higher power demand at 45W vs 32W.

Quick Answers

Which GPU is faster for gaming right now?

Radeon HD 7870M is the faster gaming card right now. In our data, it leads by 19.8% in average FPS across 50 tracked games in our benchmark data and by 0.5% in PassMark G3D (1,507 vs 1,500), so the answer here is pretty clean.

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

Radeon HD 7770M 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 7870M 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 7870M is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon HD 7770M has the stronger long-term case.

Radeon HD 7770M vs Radeon HD 7870M Technical Specifications

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

Radeon HD 7770M

The Radeon HD 7770M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 675 MHz. It has 512 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,500 points.

Radeon HD 7870M

The Radeon HD 7870M is manufactured by AMD. It was released in April 24 2012. It features the GCN 1.0 architecture. The core clock speed is 800 MHz. It has 640 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,507 points.

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Graphics Performance

The Radeon HD 7770M scores 1,500 and the Radeon HD 7870M reaches 1,507 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The Radeon HD 7770M is built on GCN 1.0 while the Radeon HD 7870M uses GCN 1.0, both on a 28 nm process. Shader units: 512 (Radeon HD 7770M) vs 640 (Radeon HD 7870M). Raw compute: 0.6912 TFLOPS (Radeon HD 7770M) vs 1.024 TFLOPS (Radeon HD 7870M).

Feature	Radeon HD 7770M	Radeon HD 7870M
G3D Mark Score	1,500	1,507
Architecture	GCN 1.0	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	512	640+25%
Compute (TFLOPS)	0.6912 TFLOPS	1.024 TFLOPS+48%
ROPs	16	16
TMUs	32	40+25%
L1 Cache	128 KB	160 KB+25%
L2 Cache	256 KB	256 KB
Frame Generation	FSR upscaling	FSR upscaling

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Advanced Features (DLSS/FSR)

Feature	Radeon HD 7770M	Radeon HD 7870M
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 7770M has 512 MB of VRAM, while the Radeon HD 7870M carries 2 GB. Radeon HD 7870M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is System on the Radeon HD 7770M and System on the Radeon HD 7870M.

Feature	Radeon HD 7770M	Radeon HD 7870M
VRAM Capacity	0.5 GB	2 GB+300%
Memory Type	Shared	Shared
Memory Bandwidth	System	System
Bus Width	System	System
L2 Cache	256 KB	256 KB

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Power & Dimensions

The Radeon HD 7770M draws 32W versus the Radeon HD 7870M's 45W — a 33.8% difference. The Radeon HD 7770M is more power-efficient. Recommended PSU: 350W (Radeon HD 7770M) vs 350W (Radeon HD 7870M). Power connectors: 1x 6-pin vs 1x 6-pin.