AMD Radeon R9 390 X2 vs NVIDIA GeForce RTX 3080 Ti 20 GB
GPU Specs Compare
Graphics Card
Release Date
Sep 2015
Jun 2025
Generation
Pirate Islands
Navi IV
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1350 MHz
2518 MHz
Base Clock
-
1700 MHz
Boost Clock
-
3130 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
512bit
128bit
Bandwidth
345.6GB/s
322.3GB/s
Render Config
Compute Units
40
32
Shading Units
2560
2048
TMUs
160
128
ROPs
64
64
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
1024 KB
4 MB
SM Count
-
80
Tensor Cores
-
320
RT Cores
-
32
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
200.3 GPixel/s
Texture Rate
160.0 GTexel/s
400.6 GTexel/s
FP32 (float)
5.120 TFLOPS
25.64 TFLOPS
FP64 (double)
640.0 GFLOPS
801.3 GFLOPS
FP16 (half)
-
51.28 TFLOPS
Graphics Processor
GPU Name
Grenada
Navi 44
GPU Variant
Grenada PRO(215-0880030)
Navi 44 XT(215-176400102)
Architecture
GCN 2.0
RDNA 4.0
Foundry
TSMC
TSMC
Process Size
28 nm
4 nm
Transistors
6.2 billion
29.7 billion
Die Size
438 mm²
199 mm²
Board Design
TDP
580W
150W
Suggested PSU
950 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1b2x DisplayPort 2.1a
Power Connectors
4x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.3
Shader Model
6.3
6.8
CUDA
-
8.6
📊 Benchmark
Blender
-
5,956