GPU Comparison
RADEON
AMD Radeon 540
CORE STATE
Lexa
VRAM
1024 MB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
32 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
RADEON
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
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
540
550X
Core Specs
Shading Units
384
512
+33.3%
Shaders
384
512
+33.3%
TMUs
24
32
+33.3%
ROPs
16
16
0.0%
Compute Units
6
8
+33.3%
Clocks
Base Clock
—
1082 MHz
Boost Clock
—
1218 MHz
GPU Clock
1183 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
32 bit
128 bit
Bandwidth
24.00 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
18.93 GPixel/s
19.49 GPixel/s
Texture Rate
28.39 GTexel/s
38.98 GTexel/s
FP32 (TFLOPS)
908.5 GFLOPS
1,247.2 GFLOPS
FP64 (TFLOPS)
56.78 GFLOPS (1:16)
77.95 GFLOPS (1:16)
FP16 (TFLOPS)
908.5 GFLOPS (1:1)
1,247.2 GFLOPS (1:1)
Power
TDP
50 W
50 W
TDP (W)
50
50
0.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
GCN 4.0
GPU Name
Lexa
Lexa
Generation
Polaris
(RX 500)
Polaris
(RX 500X)
Process Size
14 nm
14 nm
Transistors
2,200 million
2,200 million
Die Size
103 mm²
103 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
21.4M / mm²
21.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.7
6.7
Physical
Slot Width
Single-slot
Dual-slot
Length
—
145 mm
5.7 inches
Outputs
2x DisplayPort 1.4a
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Arctic Islands
Polaris
Successor
Vega
Vega