AMD Radeon RX 8800 XT vs AMD Radeon RX 580X Mobile
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Apr 2018
Generation
Navi IV(RX 8000)
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1295 MHz
1000 MHz
Boost Clock
2430 MHz
1077 MHz
Memory Clock
2438 MHz
2000 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
624.1GB/s
256.0GB/s
Render Config
Compute Units
64
36
Shading Units
4096
2304
TMUs
256
144
ROPs
96
32
RT Cores
64
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
2 MB
L3 Cache
64 MB
—
Theoretical Performance
Pixel Rate
233.3 GPixel/s
34.46 GPixel/s
Texture Rate
622.1 GTexel/s
155.1 GTexel/s
FP16 (half)
39.81 TFLOPS
4.963 TFLOPS
FP32 (float)
19.91 TFLOPS
4.963 TFLOPS
FP64 (double)
622.1 GFLOPS
310.2 GFLOPS
Graphics Processor
GPU Name
Navi 48
Polaris 20
GPU Variant
Navi 48 XT
Polaris 20M XT
Architecture
RDNA 4.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
4 nm
14 nm
Transistors
Unknown
5.7 billion
Die Size
Unknown
232 mm²
Board Design
TDP
220W
100W
Suggested PSU
550 W
—
Outputs
1x HDMI 2.1a3x DisplayPort 2.1
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.1
Vulkan
1.3
1.2
Shader Model
6.8
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.