GPU Comparison
RADEON
AMD Radeon Pro Vega 20
CORE STATE
Vega 12
VRAM
4 GB
CLOCK SPEED
1283 MHz
TDP
100 W
BUS WIDTH
1024 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
RADEON
Radeon RX 550X
CORE STATE
Lexa
VRAM
4 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro Vega 20
RX 550X
Core Specs
Shading Units
1,280
512
-60.0%
Shaders
1,280
512
-60.0%
TMUs
80
32
-60.0%
ROPs
32
16
-50.0%
Compute Units
20
8
-60.0%
Clocks
Base Clock
815 MHz
1100 MHz
Boost Clock
1283 MHz
1183 MHz
Memory Clock
740 MHz
1480 Mbps effective
1500 MHz
6 Gbps effective
Memory
Memory Size
4 GB
4 GB
VRAM (MB)
4,096
4,096
0.0%
Memory Type
HBM2
GDDR5
Memory Bus
1024 bit
128 bit
Bandwidth
189.4 GB/s
96.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
512 KB
Performance
Pixel Rate
41.06 GPixel/s
18.93 GPixel/s
Texture Rate
102.6 GTexel/s
37.86 GTexel/s
FP32 (TFLOPS)
3.284 TFLOPS
1,211.4 GFLOPS
FP64 (TFLOPS)
205.3 GFLOPS (1:16)
75.71 GFLOPS (1:16)
FP16 (TFLOPS)
6.569 TFLOPS (2:1)
1,211.4 GFLOPS (1:1)
Power
TDP
100 W
50 W
TDP (W)
100
50
-50.0%
Suggested PSU
—
250 W
Power Connectors
—
None
Architecture
Architecture
GCN 5.0
GCN 4.0
GPU Name
Vega 12
Lexa
Generation
Radeon Pro Mac
(Vega Series)
Polaris
(RX 500X)
Process Size
14 nm
14 nm
Transistors
—
2,200 million
Die Size
—
103 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
—
21.4M / mm²
API Support
DirectX
12 (12_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.0
6.7
Physical
Slot Width
IGP
Dual-slot
Length
—
145 mm
5.7 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
—
Polaris
Successor
—
Vega