PowerColor Radeon RX 6600 XT Hellhound vs AMD Radeon RX 7400 Full Specs
2,048 Shaders 2.59GHz | 1,792 Shaders 1.1GHz |
8GB GDDR6256GB/s | 8GB GDDR6172.8GB/s |
·· 10.62 TFLOPS | ·· 7.88 TFLOPS |
Form Factor PCIe Card | Form Factor PCIe Card |
TDP 160W | TDP 55W |
Power Connectors 1x 8-Pin | Power Connectors 1x 8-Pin |
Radeon RX 6600 XT Hellhound21.24 TFLOPSFP16
Radeon RX 740031.54 TOPSINT4 TensorClock Speed ··· | Clock Speed ··· |
Peak OPS 21.24 TFLOPSFP16 | Peak OPS 31.54 TOPSINT4 Tensor |
- | Tensor FP16-16 7.88 TFLOPSTensor FP16-32 7.88 TFLOPS |
- | BF16 15.77 TFLOPSTensor BF16 7.88 TFLOPS |
FP32 10.62 TFLOPS | FP32 7.88 TFLOPS |
FP64 663.8 GFLOPS | FP64 246.4 GFLOPS |
Tensor INT4 - | Tensor INT4 31.54 TOPS |
- | Tensor INT8 7.88 TOPS |
Pixel Rate 166 GPixel/s | Pixel Rate 70.4 GPixel/s |
Texture Rate 331.9 GTexel/s | Texture Rate 123.2 GTexel/s |
Shaders 2,048 Shaders | Shaders 1,792 Shaders |
TMUs 128 TMUs | TMUs 112 TMUs |
ROPs 64 ROPs | ROPs 64 ROPs |
Tensor Cores - | Tensor Cores 56 T-Cores |
RT Cores 32 RT-Cores | RT Cores 28 RT-Cores |
CUs 32 CUs | CUs 28 CUs |
Base Clock 2.19GHz | Base Clock 1GHz |
Boost Clock 2.59GHz | Boost Clock 1.1GHz |
L2 Cache 2MB shared | L2 Cache 2MB shared |
L3 Cache 32MB shared | L3 Cache 32MB shared |
L3 Bandwidth 832GB/s | L3 Bandwidth 1.16TB/s |
8GB GDDR6 | 8GB GDDR6 |
Memory Bus 128-bit | Memory Bus 128-bit |
Memory Speed 16GT/s | Memory Speed 10.8GT/s |
Memory Bandwidth 256GB/s | Memory Bandwidth 172.8GB/s |
ECC No | ECC No |
TDP 160W | TDP 55W |
Max Temp 110°C Max | Max Temp - |
Multi-Monitor 4 | Multi-Monitor 3 |
HDCP HDCP 2.3 | HDCP HDCP 2.3 |
- | 3x DisplayPort 2.1 |
3x DisplayPort 1.4 | - |
1x HDMI 2.1 | 1x HDMI 2.1 |
Encoder Model VCN 3.0 | Encoder Model VCN 4.0 |
Decoder Model VCN 3.0 | Decoder Model VCN 4.0 |
Form Factor PCIe Card | Form Factor PCIe Card |
PCIe 2.2-Slots | PCIe 2-Slots |
Height 132 mm (5.2")Width 220 mm (8.66")Depth 45 mm (1.77") | Height 115 mm (4.53")Width 204 mm (8.03")Depth 40 mm (1.57") |
Cooling Open-Air 2x Fans | Cooling Open-Air 2x Fans |
Power Connectors 1x 8-Pin | Power Connectors 1x 8-Pin |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Dimgrey Cavefish | Codename Hotpink Bonefish |
Chip Variant Navi 23 XL | Chip Variant Navi 33 XL |
Market Segment Desktop | Market Segment Desktop |
Release Date Aug 11, 2021 | Release Date Aug 8, 2025 |
Foundry TSMC | Foundry TSMC |
Fabrication Node N7 | Fabrication Node N6 |
Die Size 237mm² | Die Size 204mm² |
Transistor Count 11.1 Billion | Transistor Count 13.3 Billion |
Transistor Density 46.67 MTr/mm² | Transistor Density 65.2 MTr/mm² |
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