AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 3090
GPU Specs Compare
Graphics Card
Release Date
Oct 2020
Sep 2020
Generation
Navi II
GeForce 30
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
1395 MHz
Boost Clock
2250 MHz
1695 MHz
Memory Clock
2000 MHz
1219 MHz
Memory
Memory Size
16GB
24GB
Memory Type
GDDR6
GDDR6X
Memory Bus
256bit
384bit
Bandwidth
512.0GB/s
936.2GB/s
Render Config
Compute Units
80
-
Shading Units
5120
10496
TMUs
320
328
ROPs
128
112
RT Cores
80
82
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
4 MB
6 MB
L3 Cache
128 MB
-
SM Count
-
82
Tensor Cores
-
328
Theoretical Performance
Pixel Rate
288.0 GPixel/s
189.8 GPixel/s
Texture Rate
720.0 GTexel/s
556.0 GTexel/s
FP16 (half)
46.08 TFLOPS
35.58 TFLOPS
FP32 (float)
23.04 TFLOPS
35.58 TFLOPS
FP64 (double)
1440.0 GFLOPS
556.0 GFLOPS
Graphics Processor
GPU Name
Navi 21
GA102
GPU Variant
Navi 21 XTX(215-121000167)
GA102-300-A1
Architecture
RDNA 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
7 nm
8 nm
Transistors
26.8 billion
28.3 billion
Die Size
520 mm²
628 mm²
Board Design
TDP
300W
350W
Suggested PSU
700 W
750 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 12-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.4
1.3
Shader Model
6.8
6.6
CUDA
-
8.6
📊 Benchmark
3DMark Time Spy
20,764
-