GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon VII
CORE STATE
Vega 20
VRAM
16 GB
CLOCK SPEED
1750 MHz
TDP
295 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 5.1
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
RX 550X
VII
Core Specs
Shading Units
512
3,840
+650.0%
Shaders
512
3,840
+650.0%
TMUs
32
240
+650.0%
ROPs
16
64
+300.0%
Compute Units
8
60
+650.0%
Clocks
Base Clock
1100 MHz
1400 MHz
Boost Clock
1183 MHz
1750 MHz
Memory Clock
1500 MHz
6 Gbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
4 GB
16 GB
VRAM (MB)
4,096
16,384
+300.0%
Memory Type
GDDR5
HBM2
Memory Bus
128 bit
4096 bit
Bandwidth
96.00 GB/s
1.02 TB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
18.93 GPixel/s
112.0 GPixel/s
Texture Rate
37.86 GTexel/s
420.0 GTexel/s
FP32 (TFLOPS)
1,211.4 GFLOPS
13.44 TFLOPS
FP64 (TFLOPS)
75.71 GFLOPS (1:16)
3.360 TFLOPS (1:4)
FP16 (TFLOPS)
1,211.4 GFLOPS (1:1)
26.88 TFLOPS (2:1)
Power
TDP
50 W
295 W
TDP (W)
50
295
+490.0%
Suggested PSU
250 W
600 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
GCN 4.0
GCN 5.1
GPU Name
Lexa
Vega 20
Generation
Polaris
(RX 500X)
Vega II
(Radeon VII)
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
Dual-slot
Length
145 mm
5.7 inches
280 mm
11 inches
Height
—
125 mm
4.9 inches
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
699 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
Vega
Successor
Vega
Navi