AMD Radeon RX 6600 vs AMD Radeon R9 M280X
GPU Specs Compare
Graphics Card
Release Date
Oct 2021
Feb 2015
Generation
Navi II
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1626 MHz
900 MHz
Boost Clock
2491 MHz
1000 MHz
Memory Clock
1750 MHz
1375 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
128bit
Bandwidth
224.0GB/s
88.00GB/s
Render Config
Compute Units
28
14
Shading Units
1792
896
TMUs
112
56
ROPs
64
16
RT Cores
28
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
256 KB
L3 Cache
32 MB
-
Theoretical Performance
Pixel Rate
159.4 GPixel/s
16.00 GPixel/s
Texture Rate
279.0 GTexel/s
56.00 GTexel/s
FP16 (half)
17.86 TFLOPS
-
FP32 (float)
8.928 TFLOPS
1.792 TFLOPS
FP64 (double)
558.0 GFLOPS
112.0 GFLOPS
Graphics Processor
GPU Name
Navi 23
Saturn
GPU Variant
Navi 23 XL(215-130000016)
Saturn XT(216-0843024)
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
2.08 billion
Die Size
237 mm²
160 mm²
Board Design
TDP
132W
Unknown
Suggested PSU
300 W
-
Outputs
1x HDMI 2.13x DisplayPort 1.4a
Portable Device Dependent
Power Connectors
1x 8-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2.170
Shader Model
6.5
6.5