RX 6900 XT
RX 6900 XT Review & Specifications
The RX 6900 XT is based on the RDNA 2.0 architecture and manufactured using the 7 nm process node. It was launched approximately 5 years, 8 months ago, originally priced at $999. It features 5120 cores, including 80 compute units (SMs), 320 texture mapping units (TMUs), and 128 render output units (ROPs). For ray tracing and AI-accelerated tasks, it also includes 80 dedicated RT cores and None Tensor cores, enabling advanced rendering and upscaling features where supported. It has a base clock of 1825 MHz and a boost clock reaching up to 2250 MHz. The RX 6900 XT comes equipped with 16 GB of GDDR6 memory across a 256-bit bus. Memory runs at 2000 MHz and delivers a total memory bandwidth of 512 GB/s.
This GPU has a moderate thermal design power (TDP) of 300 W. A PC case with good airflow and a quality power supply are required for stable operation. Due to the moderate TDP, this GPU is suitable for small form factor builds with somewhat limited airflow.
RX 6900 XT Performance
RX 6900 XT is a mid-range graphics card, scoring 55.23% in relative gaming performance. Thanks to 16 GB of VRAM, it offers excellent 1440p performance and can handle 4K gaming with optimized settings or the help of DLSS, FSR, and frame generation. Great for users targeting 100+ FPS at 1440p or playable 4K in lighter titles.
The RX 6900 XT includes a substantial 16 GB of VRAM, making it capable of high to ultra settings in most games at up to 4K resolution. It performs well in demanding creative workloads like 4K video editing, RAW image manipulation, and 3D rendering. For AI and machine learning, AMD GPUs are gradually improving: while they still lack CUDA support, some frameworks now offer experimental or partial support via ROCm — allowing limited use with models like Stable Diffusion. However, software compatibility remains inconsistent, and performance is typically lower than NVIDIA equivalents. Overall, this GPU is a strong choice for gamers and creators, but only suitable for light or hobbyist AI workloads.
In terms of gaming value, RX 6900 XT offers excellent performance per dollar, achieving 65.7% efficiency relative to the best in this category. It is an outstanding choice for users seeking a cost-effective yet powerful solution, with ample VRAM ensuring strong future-proofing.
General Information
| GPU Name | RX 6900 XT |
|---|---|
| GPU Code Name | Navi 21 |
| Release Price | $999 |
| Selected Model | Red Devil AMD Radeon™ RX 6900 XT Gaming Graphics Card with 16GB GDDR6 Memory, Powered by AMD RDNA™ 2, Raytracing, PCI Express 4.0, HDMI 2.1, AMD Infinity Cache |
| Current Price Amazon | $700 |
| Amazon Price Updated | 1 week, 4 days ago |
| Launch Date | 5 years, 8 months ago |
| GPU Available | True |
| Architecture | RDNA 2.0 |
|---|---|
| Foundry | TSMC |
| Process | 7 |
| Transistors | 26800 million |
| Die Size | 520 mm² |
| Bus Interface | PCIe 4.0 x16 |
| TDP | 300 W |
| Cores | 5120 |
|---|---|
| CUs (SMs) | 80 |
| TMUs | 320 |
| ROPs | 128 |
| RT Cores | 80 |
| Tensor Cores | None |
| L0 Cache | 32 KB per WGP |
| L1 Cache | 128 KB per Array |
| L2 Cache | 4 MB |
| L3 Cache | 128 MB |
| Base Clock | 1825 MHz |
|---|---|
| Boost Clock | 2250 MHz |
| Memory Size - Type | 16 GB GDDR6 |
|---|---|
| Memory Bus Width | 256 bit |
| Memory Clock | 2000 MHz |
| Memory Bandwidth | 512 GB/s |
| DirectX | 12 Ultimate (12_2) |
|---|---|
| OpenGL | 4.6 |
| OpenCL | 2.1 |
| Vulkan | 1.4 |
| Shader Model | 6.8 |
Theoretical Performance
| Pixel Rate | 288.00 GPixel/s |
|---|---|
| Texture Rate | 720.00 GTexel/s |
| FP16 | 46.08 TFLOPS |
| FP32 | 23.04 TFLOPS |
| FP64 | 1440.00 GFLOPS |
Gaming Performance Chart
RX 6900 XT Compared to Similar Performance GPUs
GPU Price / Performance Table
| GPU (Desc) | Price (Desc) | Gaming_1080p (Desc) | Gaming_1440p (Desc) | Gaming_2160p (Desc) | Game_1440p/Price (Desc) |
|---|---|---|---|---|---|
|
$799❗
|
↓
-5.9%
|
56.0%
|
48.8%
|
41.3%
|
60.4%
|
|
|
$0
|
0.0%
|
56.0%
|
48.5%
|
40.9%
|
N/A | |
|
$590
|
↓
-4.8%
|
55.1%
|
47.9%
|
43.7%
|
80.4%
|
|
|
$1098
|
0.0%
|
55.7%
|
47.8%
|
41.3%
|
43.1%
|
|
|
$700
|
0.0%
|
55.2%
|
46.5%
|
39.0%
|
65.7%
|
|
|
$600❗
|
0.0%
|
51.5%
|
44.6%
|
38.1%
|
73.6%
|
|
|
$470
|
↑
4.4%
|
50.9%
|
43.7%
|
39.1%
|
92.0%
|
|
|
$630
|
↑
18.9%
|
51.4%
|
43.1%
|
35.8%
|
67.7%
|
|
|
$600
|
0.0%
|
49.2%
|
42.7%
|
35.6%
|
70.4%
|
GPU Specification Table
| GPU (Desc) | Architecture | Shader/TMU/ROP/RT | Base/Boost Clock | Memory | Mem Clock/Bandwidth | TDP |
|---|---|---|---|---|---|---|
| RX 7900 GRE | Navi 31 / 5 nm / RDNA 3.0 | 5120 / 320 / 160 / 80 | 1287 MHz / 2245 MHz | 16 GB GDDR6 / 256 bit | 2250 MHz / 576 GB/s | 260 W |
| RX 9070 GRE | Navi 48 / 5 nm / RDNA 4.0 | 3072 / 192 / 96 / 48 | 1420 MHz / 2790 MHz | 12 GB GDDR6 / 192 bit | 2250 MHz / 432 GB/s | 220 W |
| RTX 3080 Ti | GA102 / 8 nm nm / Ampere | 10240 / 320 / 112 / 80 | 1365 MHz / 1665 MHz | 12 GB GDDR6X / 384 bit | 1188 MHz / 912 GB/s | 350 W |
| RX 6950 XT | Navi 21 / 7 nm / RDNA 2.0 | 5120 / 320 / 128 / 80 | 1860 MHz / 2310 MHz | 16 GB GDDR6 / 256 bit | 2250 MHz / 576 GB/s | 335 W |
| RX 6900 XT | Navi 21 / 7 nm / RDNA 2.0 | 5120 / 320 / 128 / 80 | 1825 MHz / 2250 MHz | 16 GB GDDR6 / 256 bit | 2000 MHz / 512 GB/s | 300 W |
| RX 7800 XT | Navi 32 / 5 nm / RDNA 3.0 | 3840 / 240 / 96 / 60 | 1295 MHz / 2430 MHz | 16 GB GDDR6 / 256 bit | 2438 MHz / 624 GB/s | 263 W |
| RTX 3080 | GA102 / 8 nm nm / Ampere | 8704 / 272 / 96 / 68 | 1440 MHz / 1710 MHz | 10 GB GDDR6X / 320 bit | 1188 MHz / 760 GB/s | 320 W |
| RTX 4070 | AD104 / 5 nm nm / Ada Lovelace | 5888 / 184 / 64 / 46 | 1920 MHz / 2475 MHz | 12 GB GDDR6X / 192 bit | 1313 MHz / 504 GB/s | 200 W |
| RX 6800 XT | Navi 21 / 7 nm / RDNA 2.0 | 4608 / 288 / 128 / 72 | 1825 MHz / 2250 MHz | 16 GB GDDR6 / 256 bit | 2000 MHz / 512 GB/s | 300 W |
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