AMD Radeon RX 6900 XT vs AMD Radeon 780M

Updated Sep 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the AMD Radeon RX 6900 XT is the better pick — it scores 79/100 to the AMD Radeon 780M's 27, leading on Memory and Theoretical Performance. Choose the AMD Radeon 780M instead if core specifications matters most to you, where it comes out ahead.

Verdict

Our overall take, at a glance

AMD Radeon RX 6900 XT leads overall

AMD Radeon RX 6900 XT

AMD Radeon 780M

Why it stands out

Theoretical Performance Performance (FP16): 46.1 TFLOPS (178% more)
Theoretical Performance Performance (FP32): 23 TFLOPS (177% more)
Benchmark G3D Mark: 26,642 (295% more)

Winner by category for AMD Radeon RX 6900 XT vs AMD Radeon 780M
Category	AMD Radeon RX 6900 XT	AMD Radeon 780M	Winner
Core Specifications	66	73	AMD Radeon 780M
Memory	95	54	AMD Radeon RX 6900 XT
API Support	50	50	Tie
Theoretical Performance	75	37	AMD Radeon RX 6900 XT
Benchmark	81	5	AMD Radeon RX 6900 XT
Miscellaneous	89	22	AMD Radeon RX 6900 XT

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Sep 2026.

AMD Radeon RX 6900 XT

The AMD Radeon RX 6900 XT is a flagship desktop graphics processor designed for enthusiast-level PC gaming. It was launched to deliver performance comparable to its primary competitor, the RTX 3090, but at a retail price that is $500 lower. The card targets high-resolution gaming and features support for technologies like Smart Access Memory.

Best for high-frame-rate 4K gaming in titles without demanding ray-tracing effectsBest for enthusiast builds configured to leverage Smart Access Memory with compatible…

Pros

Delivers highly competitive frame rates in traditional rasterized gaming workloads
Priced substantially lower than its direct top-tier competitor
Provides measurable performance gains when utilizing Smart Access Memory
Operates with respectable thermal performance and quiet acoustic levels

Cons

Significantly weaker performance when running games with heavy ray tracing enabled
Offers a relatively low cost-per-frame value improvement compared to the cheaper RX 6800 XT

AMD Radeon 780M

The AMD Radeon 780M is an integrated graphics solution designed to deliver capable multimedia and entry-level gaming performance within mobile processors. Featuring a G3D Mark benchmark score of 8000, it is engineered for thin-and-light laptops and portable gaming handhelds that require a balance of energy efficiency and graphical power.

Best for Light to moderate gaming on thin-and-light laptopsBest for Efficient power management in compact portable gaming handhelds

Pros

Delivers strong integrated graphics performance with a G3D Mark score of 8000
Allows for slimmer, more power-efficient laptop designs by removing the need for a discrete GPU

Cons

Lacks dedicated video memory (VRAM), relying on shared system memory instead
Real-world performance is heavily dependent on the host system's RAM speeds and thermal design

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

AMD Radeon RX 6900 XT

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AMD Radeon 780M

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Performance

Higher benchmark score = faster

AMD Radeon RX 6900 XT26,642

AMD Radeon 780M6,744

See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
Base Frequency	1.825 GHz	N/A
Base Power	N/A	N/A
Maximum Frequency	2.245 GHz	2.7 GHz
Maximum Power	300 W	N/A
Lithography Process	7 nm	4 nm43% less

Memory

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
Capacity	16 GB	N/A
Technology
Bus Width	256 bit	N/A
Bandwidth	512 GB/s	N/A
Is Shared	No	Yes

API Support

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
DirectX Version	12	12
OpenGL Version	4.6	4.6
Vulkan Version	1.3	1.3
OpenCL Version	2.1	N/A

Theoretical Performance

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
Pixel Rate	288 GP/s	86.4 GP/s
Texture Rate	720 GT/s	129.6 GT/s
Performance (FP16)	46.1 TFLOPS178% more	16.59 TFLOPS
Performance (FP32)	23 TFLOPS177% more	8.294 TFLOPS
Performance (FP64)	1,440 GFLOPS	N/A

Benchmark

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
G3D Mark	26,642295% more	6,744

Miscellaneous

Feature	AMD Radeon RX 6900 XT	AMD Radeon 780M
Release Date	December 8, 2020	N/A
Platform

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about AMD Radeon RX 6900 XT vs AMD Radeon 780M comparison

Based on our overall comparison score, AMD Radeon RX 6900 XT rates higher at 78/100 versus 29/100 for AMD Radeon 780M — a 49-point lead. AMD Radeon RX 6900 XT is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

AMD Radeon RX 6900 XT and AMD Radeon 780M are compared side by side above across every spec in the gpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 78/100 for AMD Radeon RX 6900 XT and 29/100 for AMD Radeon 780M.

If you want the higher-rated gpus option overall, AMD Radeon RX 6900 XT (78/100) edges out AMD Radeon 780M (29/100). But if AMD Radeon 780M is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.