AMD Radeon RX 580X vs AMD Radeon RX 6800 XT
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
Oct 2020
Generation
Polaris
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1257 MHz
1825 MHz
Boost Clock
1340 MHz
2250 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
8GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
256.0GB/s
512.0GB/s
Render Config
Compute Units
36
72
Shading Units
2304
4608
TMUs
144
288
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
2 MB
4 MB
RT Cores
-
72
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
42.88 GPixel/s
288.0 GPixel/s
Texture Rate
193.0 GTexel/s
648.0 GTexel/s
FP16 (half)
6.175 TFLOPS
41.47 TFLOPS
FP32 (float)
6.175 TFLOPS
20.74 TFLOPS
FP64 (double)
385.9 GFLOPS
1296 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Navi 21
GPU Variant
Polaris 20 XTX(215-0910038)
Navi 21 XT(215-121000177)
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
300W
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
📊 Benchmark
3DMark Time Spy
-
19,329