AMD Radeon RX 7900 XT vs AMD Radeon 660M

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

For most buyers the AMD Radeon RX 7900 XT is the better pick — it scores 84/100 to the AMD Radeon 660M's 22, leading on Core Specifications and Memory. Choose the AMD Radeon 660M instead if you want to spend less.

Verdict

Our overall take, at a glance

AMD Radeon RX 7900 XT leads overall

AMD Radeon RX 7900 XT

AMD Radeon 660M

Why it stands out

Theoretical Performance Performance (FP16): 51.6 TFLOPS (1668% more)
Theoretical Performance Performance (FP32): 51.5 TFLOPS (3430% more)
Benchmark G3D Mark: 29,124 (811% more)

Winner by category for AMD Radeon RX 7900 XT vs AMD Radeon 660M
Category	AMD Radeon RX 7900 XT	AMD Radeon 660M	Winner
Core Specifications	80	42	AMD Radeon RX 7900 XT
Memory	95	54	AMD Radeon RX 7900 XT
API Support	52	48	AMD Radeon RX 7900 XT
Theoretical Performance	87	29	AMD Radeon RX 7900 XT
Benchmark	84	4	AMD Radeon RX 7900 XT
Miscellaneous	89	22	AMD Radeon RX 7900 XT

In-depth analysisAI

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

AMD Radeon RX 7900 XT

The AMD Radeon RX 7900 XT is a high-performance graphics card designed for premium 1440p and 4K gaming experiences. Powered by the Navi 31 XT processor and built on the RDNA 3 architecture, it leverages a chiplet-based design to deliver high frame rates. This card targets PC builders looking for elite rendering capabilities at a lower price point than top-tier competitor offerings.

Best for High-refresh-rate gaming at 1440p and 4K resolutionsBest for Enthusiasts seeking next-generation DisplayPort 2.1 video outputBest for Value-conscious buyers wanting high-end graphics performance without paying…

Pros

Strong gaming performance in native 1440p and 4K resolutions
Innovative chiplet architecture utilizing the Navi 31 XT silicon
Forward-looking support for DisplayPort 2.1 connectivity
More accessible entry price than immediate high-end competitor GPUs

Cons

Early driver bugs resulting in high idle power consumption
DisplayPort 2.1 implementation is restricted and lacks UHBR20 support
Ray-tracing and productivity performance lag behind competing architectures

Official

Official product pageProvides official product page verification and branding context.

Source

Video — reviews used (3)

Discusses 4K and 1440p gaming benchmarks, ray-tracing limits, idle power consumption bugs, and DisplayPort 2.1 UHBR20 constraints.

Generated Aug 5, 2026

AMD Radeon 660M

The AMD Radeon 660M is an integrated mobile graphics solution introduced in early 2022 for everyday laptop computing. Built on a 6nm lithography process, it operates on shared system memory and reaches a maximum clock frequency of 1.9 GHz. It is designed for entry-level devices where energy efficiency and basic display capabilities are prioritized over heavy 3D rendering.

Best for Basic multimedia consumption and everyday productivity tasks on thin laptopsBest for Casual or light 3D gaming at low graphics settings

Pros

Built on an efficient 6nm manufacturing process
Reaches maximum boost frequencies up to 1.9 GHz
Includes support for DirectX 12 API

Cons

Relies entirely on shared system memory rather than fast dedicated VRAM
Entry-level integrated graphics performance restricts heavy 3D gaming and intense GPU workloads

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 7900 XT

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AMD Radeon 660M

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Performance

Higher benchmark score = faster

AMD Radeon RX 7900 XT29,124

AMD Radeon 660M3,197

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 7900 XT	AMD Radeon 660M
Base Frequency	1.5 GHz	N/A
Base Power	N/A	N/A
Maximum Frequency	2.4 GHz	1.9 GHz
Maximum Power	315 W	N/A
Lithography Process	5 nm17% less	6 nm

Memory

Feature	AMD Radeon RX 7900 XT	AMD Radeon 660M
Capacity	20 GB	N/A
Technology
Bus Width	320 bit	N/A
Bandwidth	800 GB/s	N/A
Is Shared	No	Yes

API Support

Feature	AMD Radeon RX 7900 XT	AMD Radeon 660M
DirectX Version	12	12
OpenGL Version	4.6	N/A
Vulkan Version	1.48% more	1.3
OpenCL Version	2.1	N/A

Theoretical Performance

Feature	AMD Radeon RX 7900 XT	AMD Radeon 660M
Pixel Rate	460 GP/s	N/A
Texture Rate	810 GT/s	N/A
Performance (FP16)	51.6 TFLOPS1668% more	2.918 TFLOPS
Performance (FP32)	51.5 TFLOPS3430% more	1.459 TFLOPS
Performance (FP64)	806 GFLOPS	N/A

Benchmark

Feature	AMD Radeon RX 7900 XT	AMD Radeon 660M
G3D Mark	29,124811% more	3,197

Miscellaneous

Feature	AMD Radeon RX 7900 XT	AMD Radeon 660M
Release Date	December 13, 2022	January 4, 2022
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 7900 XT vs AMD Radeon 660M comparison

Based on our overall comparison score, AMD Radeon RX 7900 XT rates higher at 85/100 versus 23/100 for AMD Radeon 660M — a 62-point lead. AMD Radeon RX 7900 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 7900 XT and AMD Radeon 660M 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 85/100 for AMD Radeon RX 7900 XT and 23/100 for AMD Radeon 660M.

If you want the higher-rated gpus option overall, AMD Radeon RX 7900 XT (85/100) edges out AMD Radeon 660M (23/100). But if AMD Radeon 660M 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.