AMD Radeon Pro W6900X vs AMD Radeon R9 390
GPU Specs Compare
Graphics Card
Release Date
Aug 2021
Jun 2015
Generation
Radeon Pro Mac
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
-
Boost Clock
2150 MHz
-
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
32GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
512bit
Bandwidth
512.0GB/s
384.0GB/s
Render Config
Compute Units
80
40
Shading Units
5120
2560
TMUs
320
160
ROPs
128
64
RT Cores
80
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
1024 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
275.2 GPixel/s
64.00 GPixel/s
Texture Rate
688.0 GTexel/s
160.0 GTexel/s
FP16 (half)
44.03 TFLOPS
-
FP32 (float)
22.02 TFLOPS
5.120 TFLOPS
FP64 (double)
1376 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Navi 21
Grenada
GPU Variant
Navi 21 Pro-XTA
Grenada PRO(215-0880030)
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
6.2 billion
Die Size
520 mm²
438 mm²
Board Design
TDP
300W
275W
Suggested PSU
700 W
600 W
Outputs
1x HDMI 2.14x Thunderbolt
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.5
6.3
📊 Benchmark
3DMark Time Spy
-
3,964
3DMark Time Spy Extreme
-
1,931