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 6600 XT and Radeon RX 7900 XTX.
On raw speed the Radeon RX 7900 XTX comes out dramatically faster — about 211% ahead of the Radeon RX 6600 XT. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
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Radeon RX 7900 XTX vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: Radeon RX 7900 XTX vs Radeon RX 6600 XT
The Radeon RX 7900 XTX is dramatically faster, around 211% ahead of the Radeon RX 6600 XT. That gap is enough to move it up a tier: the Radeon RX 7900 XTX is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6600 XT is better matched to 1080p. The Radeon RX 7900 XTX packs 6,144 stream processors versus 2,048 on the Radeon RX 6600 XT.
Price & Value
The Radeon RX 6600 XT currently lists from $142,516 INR, $48,090 INR less than the Radeon RX 7900 XTX at $190,606 INR. Because it's both faster and competitively priced, the Radeon RX 7900 XTX wins on performance-per-dollar by about 133%. The Radeon RX 6600 XT still sits about $142,137 INR above its $379 INR MSRP. The Radeon RX 7900 XTX still sits about $189,607 INR above its $999 INR MSRP.
Power & Efficiency
On power, the Radeon RX 6600 XT is the gentler choice at 160W versus 355W. The Radeon RX 7900 XTX is more efficient per watt because it's faster, but its higher 355W 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 7900 XTX carries 24GB versus 8GB on the Radeon RX 6600 XT. The extra 16GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Radeon RX 7900 XTX's memory is also faster — 960 GB/s versus 256 GB/s (384-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6600 XT or Radeon RX 7900 XTX?
The Radeon RX 7900 XTX is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 6600 XT if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 7900 XTX better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the Radeon RX 6600 XT or the Radeon RX 7900 XTX?
Is the Radeon RX 7900 XTX worth the extra $48,090 INR over the Radeon RX 6600 XT?
Does the Radeon RX 7900 XTX have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6600 XT | Radeon RX 7900 XTX |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 6,144✓ |
| Ray Tracing Cores | 32 | 96✓ |
| Tensor / AI Cores | — | 192 |
Clock Speeds
| Specification | Radeon RX 6600 XT | Radeon RX 7900 XTX |
|---|---|---|
| Base Clock | 1,968 MHz✓ | 1,900 MHz |
| Boost Clock | 2,589 MHz✓ | 2,500 MHz |
Memory
| Specification | Radeon RX 6600 XT | Radeon RX 7900 XTX |
|---|---|---|
| VRAM Capacity | 8 GB | 24 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 384-bit✓ |
| Memory Speed | 16 Gbps | 20 Gbps✓ |
| Bandwidth | 256 GB/s | 960 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6600 XT | Radeon RX 7900 XTX |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 160 W✓ | 355 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Jul 2021 | Nov 2022 |
