GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Market Value Leader

Market comparison is currently pending while we verify the latest benchmarks for Radeon RX 6800M and Radeon RX 7900M.

Quick Verdict

On raw speed the Radeon RX 7900M comes out significantly faster — about 33% ahead of the Radeon RX 6800M.

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VS
AMD
Radeon RX 6800M
Price
Reference GPU
Performance
27/100
VRAM
12 GB GDDR6
Key Specs Advantage
+10% Boost Clock (2,300 MHz vs 2,090 MHz)
AMD
Radeon RX 7900M
Price
Reference GPU
Performance
36/100✓
VRAM
16 GB GDDR6✓
Key Specs Advantage
+226% FP32 (TFLOPS) (38.5 TFLOPS vs 11.8 TFLOPS)
+80% Stream Processors (4,608 vs 2,560)
+80% Ray Accelerators (72 vs 40)
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Radeon RX 7900M vs Radeon RX 6800M: In-Depth Breakdown

Performance: Radeon RX 7900M vs Radeon RX 6800M

The Radeon RX 7900M is significantly faster, around 33% ahead of the Radeon RX 6800M. Both cards sit in the same broad class, well suited to 1440p. The Radeon RX 7900M packs 4,608 stream processors versus 2,560 on the Radeon RX 6800M.

Power & Efficiency

On power, the Radeon RX 6800M is the gentler choice at 145W versus 180W. The Radeon RX 7900M is more efficient per watt because it's faster, but its higher 180W draw means more heat and a bigger PSU. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.

VRAM & Future-Proofing

The Radeon RX 7900M carries 16GB versus 12GB on the Radeon RX 6800M. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Radeon RX 7900M's memory is also faster — 576 GB/s versus 384 GB/s (256-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.

Generation & Longevity

The Radeon RX 7900M is roughly 2 years newer than the Radeon RX 6800M (RDNA 3 vs RDNA 2), so it generally benefits from a more modern architecture and longer driver-support runway.

Which should you buy: Radeon RX 6800M or Radeon RX 7900M?

The Radeon RX 7900M is the faster card by about 33%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.

Frequently Asked Questions

Is the Radeon RX 7900M better than the Radeon RX 6800M?

The Radeon RX 7900M is significantly faster, roughly 33% ahead. If your budget allows, it's the stronger pick.

Which is better for 4K gaming, the Radeon RX 6800M or the Radeon RX 7900M?

Neither is a dedicated 4K card; both are best at 1440p. For 4K you'd want a faster GPU, or lean on upscaling.

Does the Radeon RX 7900M have enough VRAM advantage to matter?

Its 16GB (vs 12GB) gives real headroom for 4K, heavy texture mods, and creative/AI work. At 1080p the gap matters less.

Technical Specifications Comparison

Architecture & Cores

SpecificationRadeon RX 6800MRadeon RX 7900M
ArchitectureRDNA 2RDNA 3
Process NodeTSMC 7nmTSMC N5
CUDA Cores (Stream Processors / Stream Processors)2,5604,608✓
Ray Tracing Cores4072✓
Tensor / AI Cores80144✓

Clock Speeds

SpecificationRadeon RX 6800MRadeon RX 7900M
Base Clock1,975 MHz✓1,825 MHz
Boost Clock2,300 MHz✓2,090 MHz

Memory

SpecificationRadeon RX 6800MRadeon RX 7900M
VRAM Capacity12 GB16 GB✓
Memory TypeGDDR6GDDR6
Memory Bus192-bit256-bit✓
Memory Speed16 Gbps18 Gbps✓
Bandwidth384 GB/s576 GB/s✓

Connectivity & Power

SpecificationRadeon RX 6800MRadeon RX 7900M
InterfacePCIe 4.0 x16PCIe 4.0 x16
TDP145 W✓180 W
Power ConnectorsNoneNone
ReleasedJun 2021Oct 2023
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