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 R5 M420
CORE STATE
Jet
VRAM
4 GB
CLOCK SPEED
850 MHz
TDP
—
BUS WIDTH
64 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
550X
R5 M420
Core Specs
Shading Units
512
320
-37.5%
Shaders
512
320
-37.5%
TMUs
32
20
-37.5%
ROPs
16
8
-50.0%
Compute Units
8
5
-37.5%
Clocks
Base Clock
1082 MHz
780 MHz
Boost Clock
1218 MHz
850 MHz
Memory Clock
1750 MHz
7 Gbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
112.0 GB/s
16.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
128 KB
Performance
Pixel Rate
19.49 GPixel/s
6.800 GPixel/s
Texture Rate
38.98 GTexel/s
17.00 GTexel/s
FP32 (TFLOPS)
1,247.2 GFLOPS
544.0 GFLOPS
FP64 (TFLOPS)
77.95 GFLOPS (1:16)
34.00 GFLOPS (1:16)
FP16 (TFLOPS)
1,247.2 GFLOPS (1:1)
—
Power
TDP
50 W
—
TDP (W)
50
—
Suggested PSU
250 W
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 1.0
GPU Name
Lexa
Jet
Generation
Polaris
(RX 500X)
Gem System
(R5 M400)
Process Size
14 nm
28 nm
Transistors
2,200 million
690 million
Die Size
103 mm²
56 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.3M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Dual-slot
IGP
Length
145 mm
5.7 inches
—
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Solar System
Successor
Vega
Polaris Mobile