AMD Radeon R9 M390X vs AMD Radeon RX 6650 XT
GPU Specs Compare
Graphics Card
Release Date
May 2015
May 2022
Generation
Crystal System
Navi II
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Memory Clock
1250 MHz
2190 MHz
Base Clock
-
2055 MHz
Boost Clock
-
2635 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
160.0GB/s
280.3GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
RT Cores
-
32
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
23.14 GPixel/s
168.6 GPixel/s
Texture Rate
92.54 GTexel/s
337.3 GTexel/s
FP16 (half)
2.961 TFLOPS
21.59 TFLOPS
FP32 (float)
2.961 TFLOPS
10.79 TFLOPS
FP64 (double)
185.1 GFLOPS
674.6 GFLOPS
Graphics Processor
GPU Name
Amethyst
Navi 23
GPU Variant
Amethyst XT
Navi 23 KXT(215-130000136)
Architecture
GCN 3.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
5 billion
11.06 billion
Die Size
366 mm²
237 mm²
Board Design
TDP
75W
176W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Suggested PSU
-
450 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.5