GPU Comparison
RADEON
AMD Radeon Pro 555X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
RADEON
Radeon Pro Vega II
CORE STATE
Vega 20
VRAM
32 GB
CLOCK SPEED
1720 MHz
TDP
475 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 5.1
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
Pro Vega II
Core Specs
Shading Units
768
4,096
+433.3%
Shaders
768
4,096
+433.3%
TMUs
48
256
+433.3%
ROPs
16
64
+300.0%
Compute Units
12
64
+433.3%
Clocks
Base Clock
—
1574 MHz
Boost Clock
—
1720 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
806 MHz
1612 Mbps effective
Memory
Memory Size
4 GB
32 GB
VRAM (MB)
4,096
32,768
+700.0%
Memory Type
GDDR5
HBM2
Memory Bus
128 bit
4096 bit
Bandwidth
94.08 GB/s
825.3 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
4 MB
Performance
Pixel Rate
14.51 GPixel/s
110.1 GPixel/s
Texture Rate
43.54 GTexel/s
440.3 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
14.09 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
7.045 TFLOPS (1:2)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
28.18 TFLOPS (2:1)
Power
TDP
75 W
475 W
TDP (W)
75
475
+533.3%
Suggested PSU
—
850 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 5.1
GPU Name
Polaris 21
Vega 20
Generation
Radeon Pro Mac
(500X Series)
Radeon Pro Mac
(Vega Series)
Process Size
14 nm
7 nm
Transistors
3,000 million
13,230 million
Die Size
123 mm²
331 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
40.0M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.7
6.7
Physical
Slot Width
IGP
Quad-slot
Outputs
Portable Device Dependent
1x HDMI 2.0b4x Thunderbolt
Bus Interface
PCIe 3.0 x8
Apple MPX
Other
Launch Price
—
2,199 USD
Production
End-of-life
End-of-life