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 RX 780 vs Radeon RX 6400 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 RX 780 vs Radeon RX 6400: 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 RX 780

2024

Why buy it

✅92.6% more average FPS across 50 tracked games in our benchmark data.
✅Better long-term bet: RDNA 3.0 (2022−2026) on 5nm gives it a newer hardware base for upcoming games.
✅More future proof: RDNA 3.0 (2022−2026) on 5nm with a newer platform for upcoming games.

Trade-offs

❌
213.8% HIGHER MSRP
$499 MSRPvs$159 MSRP
❌Lower G3D Mark per dollar, at 15.3 vs 48.6 G3D/$ ($499 MSRP vs $159 MSRP).
❌239.6% higher power demand at 180W vs 53W.

Radeon RX 6400

2022

Why buy it

✅Costs $340 less on MSRP ($159 MSRP vs $499 MSRP).
✅Delivers 216.7% more G3D Mark for each dollar spent, at 48.6 vs 15.3 G3D/$ ($159 MSRP vs $499 MSRP).
✅Draws 53W instead of 180W, a 127W reduction.

Trade-offs

❌Lower average FPS than Radeon RX 780 across 50 tracked games in our benchmark data.
❌Radeon RX 780 is the safer long-term pick here because the hardware is newer and the feature stack is stronger.

Quick Answers

Which GPU is faster for gaming right now?

Radeon RX 780 is the faster gaming card right now. In our data, it leads by 92.6% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon RX 6400 instead at 7,728 vs 7,658, 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?

Radeon RX 780 is the safer long-term pick for 2026 and beyond. The case is simple: a 5nm process instead of 6nm, 60 vs 12 ray-tracing units, and a newer 2024 generation instead of 2022. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

Radeon RX 6400 makes the most sense to buy today. It is $340 cheaper on MSRP at $159 vs $499, and it leads G3D-per-dollar by 216.7% (48.6 vs 15.3), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, Radeon RX 6400 is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon RX 780 has the stronger long-term case.

Radeon RX 780 vs Radeon RX 6400 Technical Specifications

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

Radeon RX 780

The Radeon RX 780 is manufactured by AMD. It was released in September 11 2024. It features the RDNA 3.0 architecture. The core clock ranges from 1295 MHz to 2335 MHz. It has 3840 shading units. The thermal design power (TDP) is 180W. Manufactured using 5 nm process technology. It features 60 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 7,658 points.

Radeon RX 6400

The Radeon RX 6400 is manufactured by AMD. It was released in January 19 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1923 MHz to 2321 MHz. It has 768 shading units. The thermal design power (TDP) is 53W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 7,728 points. Launch price was $159.

⚡

Graphics Performance

The Radeon RX 780 scores 7,658 and the Radeon RX 6400 reaches 7,728 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The Radeon RX 780 is built on RDNA 3.0 while the Radeon RX 6400 uses RDNA 2.0, both on 5 nm vs 6 nm. Shader units: 3,840 (Radeon RX 780) vs 768 (Radeon RX 6400). Raw compute: 35.87 TFLOPS (Radeon RX 780) vs 3.565 TFLOPS (Radeon RX 6400). Boost clocks: 2335 MHz vs 2321 MHz. Ray tracing: 60 RT cores (Radeon RX 780) vs 12 (Radeon RX 6400).

Feature	Radeon RX 780	Radeon RX 6400
G3D Mark Score	7,658	7,728
Architecture	RDNA 3.0	RDNA 2.0
Process Node	5 nm	6 nm
Shading Units	3840+400%	768
Compute (TFLOPS)	35.87 TFLOPS+906%	3.565 TFLOPS
Boost Clock	2335 MHz	2321 MHz
ROPs	96+200%	32
TMUs	240+400%	48
L1 Cache	768 KB+200%	256 KB
L2 Cache	4 MB+300%	1 MB
Frame Generation	FSR 3 + AFMF	FSR 3 + AFMF
Ray Tracing Cores	60+400%	12

✨

Advanced Features (DLSS/FSR)

Both cards support Frame Generation in supported games, so this part of the feature set is broadly comparable.

Feature	Radeon RX 780	Radeon RX 6400
Upscaling Tech	FSR 3	FSR 3
Frame Generation	FSR Frame Generation + AFMF	FSR Frame Generation + AFMF
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

💾

Video Memory (VRAM)

Both cards ship with 4 GB of video memory. Memory bus width is System on the Radeon RX 780 and 64-bit on the Radeon RX 6400. L2 Cache: 4 MB (Radeon RX 780) vs 1 MB (Radeon RX 6400) — the Radeon RX 780 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon RX 780	Radeon RX 6400
VRAM Capacity	4 GB	4 GB
Memory Type	Shared	GDDR6
Memory Bandwidth	System	128 GB/s
Bus Width	System	64-bit
L2 Cache	4 MB+300%	1 MB

🖥️

Display & API Support

DirectX support: 12 (12_2) (Radeon RX 780) vs 12.2 (Radeon RX 6400). Vulkan: 1.4 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 2.

Feature	Radeon RX 780	Radeon RX 6400
DirectX	12 (12_2)	12.2+2%
Vulkan	1.4+8%	1.3
OpenGL	4.6	4.6
Max Displays	4+100%	2

🎬

Media & Encoding

Hardware encoder: RDNA 3 Dual Media Engine (Radeon RX 780) vs None (Radeon RX 6400). Decoder: VCN 4.0 vs VCN 3.0 (Limited). Supported codecs: H.264,HEVC,VP9,AV1 (Radeon RX 780) vs MPEG-2,H.264 (Decode),HEVC (Decode) (Radeon RX 6400).

Feature	Radeon RX 780	Radeon RX 6400
Encoder	RDNA 3 Dual Media Engine	None
Decoder	VCN 4.0	VCN 3.0 (Limited)
Codecs	H.264,HEVC,VP9,AV1	MPEG-2,H.264 (Decode),HEVC (Decode)

🔌

Power & Dimensions

The Radeon RX 780 draws 180W versus the Radeon RX 6400's 53W — a 109% difference. The Radeon RX 6400 is more power-efficient. Recommended PSU: 350W (Radeon RX 780) vs 350W (Radeon RX 6400). Power connectors: PCIe-powered vs None. Typical load temperature: 85°C vs 75°C.

Feature	Radeon RX 780	Radeon RX 6400
TDP	180W	53W-71%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	None
Length	—	172mm
Height	—	112mm
Slots	0-100%	1
Temp (Load)	85°C	75°C-12%
Perf/Watt	42.5	145.8+243%

💰

Value Analysis

At launch, the Radeon RX 780 came in at $499, while the Radeon RX 6400 launched at $159. On MSRP, Radeon RX 6400 was 68.1% cheaper ($340 less). Performance per dollar on MSRP (G3D Mark / MSRP): 15.3 (Radeon RX 780) vs 48.6 (Radeon RX 6400) — the Radeon RX 6400 offers 217.6% better value. The newer card here is Radeon RX 780 (2024 vs 2022).

Feature	Radeon RX 780	Radeon RX 6400
MSRP	$499	$159-68%
Performance per Dollar	15.3	48.6+218%
Codename	Navi 32	Navi 24
Release	September 11 2024	January 19 2022
Ranking	#131	#330

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