AMD Radeon RX 580 Mobile vs Intel Arc B770
GPU · Specs Compare
Graphics Card
Release Date
Apr 2017
Jan 2026
Generation
Mobility Radeon
Battlemage
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 4.0 x16
Clock Speeds
Base Clock
1000 MHz
2100 MHz
Boost Clock
1077 MHz
2400 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
—
Shading Units
2304
4096
TMUs
144
256
ROPs
32
128
L1 Cache
16 KB (per CU)
—
L2 Cache
2 MB
16 MB
RT Cores
—
32
Theoretical Performance
Pixel Rate
34.46 GPixel/s
307.2 GPixel/s
Texture Rate
155.1 GTexel/s
614.4 GTexel/s
FP16 (half)
4.963 TFLOPS
39.32 TFLOPS
FP32 (float)
4.963 TFLOPS
19.66 TFLOPS
FP64 (double)
310.2 GFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
Polaris 20
BMG-G31
GPU Variant
Polaris 20M XT
—
Architecture
GCN 4.0
Xe2-HPG
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
5.7 billion
Unknown
Die Size
232 mm²
Unknown
Board Design
TDP
100W
225W
Outputs
No outputs
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
550 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.4
Shader Model
6.4
6.6
Benchmark
3DMark Time Spy
3,553
—
3DMark Time Spy Extreme
1,626
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.