AMD Radeon RX 7900 GRE vs AMD Radeon RX 6600M

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

For most buyers the AMD Radeon RX 7900 GRE is the better pick — it scores 77/100 to the AMD Radeon RX 6600M's 39, leading on Memory and API Support. Choose the AMD Radeon RX 6600M instead if core specifications matters most to you, where it comes out ahead.

Verdict

Our overall take, at a glance

AMD Radeon RX 7900 GRE leads overall

AMD Radeon RX 7900 GRE

AMD Radeon RX 6600M

Why it stands out

Core Specifications Maximum Power: 260 W (160% more)
Memory Capacity: 16 GB (100% more)
Memory Bandwidth: 576 GB/s (157% more)

Winner by category for AMD Radeon RX 7900 GRE vs AMD Radeon RX 6600M
Category	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M	Winner
Core Specifications	39	61	AMD Radeon RX 6600M
Memory	85	37	AMD Radeon RX 7900 GRE
API Support	52	48	AMD Radeon RX 7900 GRE
Theoretical Performance	85	37	AMD Radeon RX 7900 GRE
Benchmark	79	36	AMD Radeon RX 7900 GRE
Miscellaneous	87	32	AMD Radeon RX 7900 GRE

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 GRE

The AMD Radeon RX 7900 GRE is a desktop graphics card based on the RDNA 3 architecture, utilizing a cut-down version of the GPU die found in the RX 7900 XT. Released around the $550 price mark, it is designed for PC gamers seeking robust high-refresh 1440p gaming and entry-level 4K performance. It positions itself as a cost-effective alternative between mid-range and top-tier enthusiast GPUs.

Best for High-frame-rate 1440p gaming in rasterization-heavy titlesBest for Value-focused builds targeting mid-to-high $500 GPU budgets

Pros

Outperforms similarly priced Nvidia competitors in traditional rasterized gaming performance
Provides strong cost-per-frame value at 1440p and 4K resolutions
Offers competitive ray-tracing capability compared to previous-generation AMD offerings

Cons

Ray-tracing performance generally falls short of higher-tier Nvidia cards
Power consumption and thermal hotspots require adequate system cooling

AMD Radeon RX 6600M

The AMD Radeon RX 6600M is a mobile graphics processor designed to bring mid-range performance to gaming laptops. It serves as a direct competitor to NVIDIA's GeForce RTX 3060 Laptop GPU, aiming to offer a high-value alternative for budget-conscious gamers.

Best for Mid-range laptop gaming where cost-to-performance ratio is a primary concernBest for Gamers seeking a viable non-NVIDIA alternative in the portable gaming segment

Pros

Positions itself as a highly competitive value alternative to mainstream NVIDIA laptop GPUs
Designed to deliver capable gaming performance in mid-range notebooks

Cons

Faces tough market competition from the widely available GeForce RTX 3060 laptop ecosystem

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 GRE

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AMD Radeon RX 6600M

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Performance

Higher benchmark score = faster

AMD Radeon RX 7900 GRE27,450

AMD Radeon RX 6600M13,764

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 GRE	AMD Radeon RX 6600M
Base Frequency	1.27 GHz	2.359 GHz
Base Power	N/A	N/A
Maximum Frequency	2.245 GHz	2.655 GHz
Maximum Power	260 W160% more	100 W
Lithography Process	5 nm29% less	7 nm

Memory

Feature	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M
Capacity	16 GB100% more	8 GB
Technology
Bus Width	256 bit	128 bit
Bandwidth	576 GB/s157% more	224 GB/s
Is Shared	No	No

API Support

Feature	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M
DirectX Version	12	12
OpenGL Version	4.6	4.6
Vulkan Version	1.48% more	1.3
OpenCL Version	2.1	2.1

Theoretical Performance

Feature	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M
Pixel Rate	269.4 GP/s	139.3 GP/s
Texture Rate	718.4 GT/s	274.2 GT/s
Performance (FP16)	46 TFLOPS162% more	17.55 TFLOPS
Performance (FP32)	45.98 TFLOPS489% more	7.8 TFLOPS
Performance (FP64)	718 GFLOPS	487.5 GFLOPS

Benchmark

Feature	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M
G3D Mark	27,45099% more	13,764

Miscellaneous

Feature	AMD Radeon RX 7900 GRE	AMD Radeon RX 6600M
Release Date	July 27, 2023	May 31, 2021
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 GRE vs AMD Radeon RX 6600M comparison

Based on our overall comparison score, AMD Radeon RX 7900 GRE rates higher at 83/100 versus 48/100 for AMD Radeon RX 6600M — a 35-point lead. AMD Radeon RX 7900 GRE 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 GRE and AMD Radeon RX 6600M 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 83/100 for AMD Radeon RX 7900 GRE and 48/100 for AMD Radeon RX 6600M.

If you want the higher-rated gpus option overall, AMD Radeon RX 7900 GRE (83/100) edges out AMD Radeon RX 6600M (48/100). But if AMD Radeon RX 6600M 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.