AMD Radeon RX 6600 XT 8GB GDDR6
The AMD Radeon RX 6600 XT is the RDNA 2 architecture's purpose-built 1080p champion. The Navi 23 die runs at exceptionally high clock speeds — boosting past 2.5 GHz — while 32MB of on-chip Infinity Cache compensates for the 128-bit memory bus to deliver smooth, high-framerate gameplay. At just 160W on a single 8-pin connector, it's one of the most power-efficient cards you can pair with a 500W supply and still hit consistent 100+ fps in demanding titles.
2,048
Stream Processors
Navi 23 · RDNA 2
2589
MHz Boost
2359 MHz game clock
160W
TDP
Single 8-pin · 500W PSU
32MB
Infinity Cache
8GB GDDR6 · 16 Gbps
Display outputs
HDMI 2.1 ×1
DisplayPort 1.4a ×3
8K @ 60 fps
4 displays simultaneous
AMD FreeSync Premium
VRR supported
Key features
RDNA 2 architecture — the same generation powering PlayStation 5 and Xbox Series X
32MB Infinity Cache — die-mounted high-speed cache reduces off-chip memory calls for smoother 1080p
2nd-gen hardware ray accelerators — 32 dedicated RT cores for real-time ray tracing
DirectX 12 Ultimate — full support for DXR ray tracing, variable rate shading, and mesh shaders
AMD FidelityFX Super Resolution (FSR) — AI-style upscaling without proprietary hardware requirements
Smart Access Memory — unlocks extra CPU-to-GPU bandwidth when paired with AMD Ryzen 5000+ and 500-series boards
2.5 GHz+ boost clock — one of the highest peak frequencies in the RX 6000 series line-up
Single 8-pin power only — clean cable routing, compatible with virtually any modern PSU
160W TDP — substantially lower than RTX 3080 (320W) or RX 5700 XT (225W)
PCIe 4.0 x8 interface — equivalent bandwidth to PCIe 3.0 x16, backwards compatible with PCIe 3.0 boards
HDMI 2.1 output — supports 4K@120Hz and 8K@60Hz over HDMI on compatible displays
AMD FreeSync Premium — eliminates screen tear and stutter on compatible monitors
Full specifications
AMD Radeon RX 6600 XT 8GB — Technical Specifications
| Specification |
Value |
| GPU chip |
AMD Navi 23 XT (RDNA 2) |
| Process node |
7nm TSMC |
| Transistors |
11.06 billion |
| Compute units |
32 |
| Stream processors |
2,048 |
| Texture units |
128 |
| ROPs |
64 |
| Ray accelerators |
32 (2nd Gen RDNA 2) |
| Infinity Cache |
32 MB (on-die) |
| FP32 performance |
10.6 TFLOPS |
| Base clock |
1,968 MHz |
| Game clock |
2,359 MHz Typical sustained gaming frequency at reference TBP
|
| Boost clock |
2,589 MHz Peak — varies by thermal conditions and workload
|
| VRAM |
8 GB GDDR6 |
| Memory speed |
16 Gbps (2,000 MHz) |
| Memory interface |
128-bit |
| Memory bandwidth |
256 GB/s |
| TBP (Total Board Power) |
160 W |
| Power connectors |
1 × 8-pin PCIe |
| Recommended PSU |
500 W minimum |
| PCIe interface |
PCI Express 4.0 × 8 Backwards compatible with PCIe 3.0 at ×8 electrical speed
|
| Display outputs |
1 × HDMI 2.1 · 3 × DisplayPort 1.4a |
| Max resolution |
7,680 × 4,320 (8K UHD) |
| Max simultaneous displays |
4 |
| Slot width |
2-slot |
| DirectX |
12 Ultimate (DXR · VRS · Mesh Shaders · Sampler Feedback) |
| OpenGL |
4.6 |
| Vulkan |
1.2 |
| FreeSync |
AMD FreeSync Premium |
| FSR |
AMD FidelityFX Super Resolution (all versions) |
| Smart Access Memory |
Supported — requires AMD Ryzen 5000 series CPU + AMD 500-series motherboard |
Specifications are AMD reference values for the Radeon RX 6600 XT. AIB (add-in board) partner variants may have factory-overclocked clocks, different cooler designs, and slightly different dimensions. PCIe 4.0 x8 on a PCIe 3.0 motherboard will operate at PCIe 3.0 x8 speeds — equivalent to PCIe 3.0 x16 bandwidth for this GPU tier. Smart Access Memory requires a compatible AMD Ryzen 5000-series processor and 500-series chipset motherboard with resizable BAR enabled in BIOS. MinerHub makes no representation regarding in-game frame rates, which depend on full system configuration, resolution, game settings, and driver version. All figures subject to change without notice.
