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 660M
CORE STATE
Rembrandt
VRAM
System Shared
CLOCK SPEED
1900 MHz
TDP
40 W
BUS WIDTH
System Shared
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
540
660M
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
24
0.0%
ROPs
16
16
0.0%
Compute Units
6
6
0.0%
Clocks
Base Clock
—
1500 MHz
Boost Clock
—
1900 MHz
GPU Clock
1183 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
System Shared
Memory
Memory Size
1024 MB
System Shared
VRAM (MB)
1,024
—
Memory Type
GDDR5
System Shared
Memory Bus
32 bit
System Shared
Bandwidth
24.00 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
18.93 GPixel/s
30.40 GPixel/s
Texture Rate
28.39 GTexel/s
45.60 GTexel/s
FP32 (TFLOPS)
908.5 GFLOPS
1,459.2 GFLOPS
FP64 (TFLOPS)
56.78 GFLOPS (1:16)
91.20 GFLOPS (1:16)
FP16 (TFLOPS)
908.5 GFLOPS (1:1)
2.918 TFLOPS (2:1)
AI/RT
RT Cores
—
6
Power
TDP
50 W
40 W
TDP (W)
50
40
-20.0%
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
RDNA 2.0
GPU Name
Lexa
Rembrandt
Generation
Polaris
(RX 500)
Navi II IGP
(Rembrandt Mobile)
Process Size
14 nm
6 nm
Transistors
2,200 million
13,100 million
Die Size
103 mm²
208 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
63.0M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
2.0
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
IGP
Outputs
2x DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Arctic Islands
Vega II IGP
Successor
Vega
Navi III IGP