GPU Comparison
RADEON
AMD Radeon 550X
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
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_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
550X
Pro Vega II
Core Specs
Shading Units
512
4,096
+700.0%
Shaders
512
4,096
+700.0%
TMUs
32
256
+700.0%
ROPs
16
64
+300.0%
Compute Units
8
64
+700.0%
Clocks
Base Clock
1082 MHz
1574 MHz
Boost Clock
1218 MHz
1720 MHz
Memory Clock
1750 MHz
7 Gbps effective
806 MHz
1612 Mbps effective
Memory
Memory Size
2 GB
32 GB
VRAM (MB)
2,048
32,768
+1500.0%
Memory Type
GDDR5
HBM2
Memory Bus
128 bit
4096 bit
Bandwidth
112.0 GB/s
825.3 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
19.49 GPixel/s
110.1 GPixel/s
Texture Rate
38.98 GTexel/s
440.3 GTexel/s
FP32 (TFLOPS)
1,247.2 GFLOPS
14.09 TFLOPS
FP64 (TFLOPS)
77.95 GFLOPS (1:16)
7.045 TFLOPS (1:2)
FP16 (TFLOPS)
1,247.2 GFLOPS (1:1)
28.18 TFLOPS (2:1)
Power
TDP
50 W
475 W
TDP (W)
50
475
+850.0%
Suggested PSU
250 W
850 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 5.1
GPU Name
Lexa
Vega 20
Generation
Polaris
(RX 500X)
Radeon Pro Mac
(Vega Series)
Process Size
14 nm
7 nm
Transistors
2,200 million
13,230 million
Die Size
103 mm²
331 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / 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
Dual-slot
Quad-slot
Length
145 mm
5.7 inches
—
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
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
Predecessor
Polaris
—
Successor
Vega
—