AMD Radeon RX 6900 XTX vs AMD Radeon R9 M290X Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Unknown
Nov 2014
Generation
Navi II
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
2075 MHz
850 MHz
Boost Clock
2435 MHz
975 MHz
Memory Clock
2250 MHz
1365 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
576.0GB/s
174.7GB/s
Render Config
Compute Units
80
16
Shading Units
5120
1024
TMUs
320
64
ROPs
128
32
RT Cores
80
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
311.7 GPixel/s
31.20 GPixel/s
Texture Rate
779.2 GTexel/s
62.40 GTexel/s
FP16 (half)
49.87 TFLOPS
-
FP32 (float)
24.93 TFLOPS
1.997 TFLOPS
FP64 (double)
1.558 TFLOPS
124.8 GFLOPS
Graphics Processor
GPU Name
Navi 21
Pitcairn
GPU Variant
Navi 21 XTXH(215-121000247)
Pitcairn PRO(215-0828062)
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
2.8 billion
Die Size
520 mm²
212 mm²
Board Design
TDP
330W
80W
Suggested PSU
700 W
-
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
Shader Model
6.5
5.1