AMD Radeon RX 580G vs AMD Radeon RX 6900 XTX
GPU Specs Compare
Graphics Card
Release Date
Oct 2018
Unknown
Generation
Polaris
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1257 MHz
2075 MHz
Boost Clock
1330 MHz
2435 MHz
Memory Clock
2000 MHz
2250 MHz
Memory
Memory Size
8GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
256.0GB/s
576.0GB/s
Render Config
Compute Units
36
80
Shading Units
2304
5120
TMUs
144
320
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
2 MB
4 MB
RT Cores
-
80
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
42.56 GPixel/s
311.7 GPixel/s
Texture Rate
191.5 GTexel/s
779.2 GTexel/s
FP16 (half)
6.129 TFLOPS
49.87 TFLOPS
FP32 (float)
6.129 TFLOPS
24.93 TFLOPS
FP64 (double)
383.0 GFLOPS
1.558 TFLOPS
Graphics Processor
GPU Name
Polaris 20
Navi 21
GPU Variant
Polaris 20 XTX(215-0910038)
Navi 21 XTXH(215-121000247)
Architecture
GCN 4.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
5.7 billion
26.8 billion
Die Size
232 mm²
520 mm²
Board Design
TDP
185W
330W
Suggested PSU
450 W
700 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.4
6.5