GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon RX 550
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RX 550
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
1500 MHz
1100 MHz
Boost Clock
1900 MHz
1183 MHz
Memory Clock
System Shared
1750 MHz
7 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
112.0 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
512 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
18.93 GPixel/s
Texture Rate
45.60 GTexel/s
37.86 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
1,211.4 GFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
75.71 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
1,211.4 GFLOPS (1:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
50 W
TDP (W)
40
50
+25.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
GCN 4.0
GPU Name
Rembrandt
Lexa
Generation
Navi II IGP
(Rembrandt Mobile)
Polaris
(RX 500)
Process Size
6 nm
14 nm
Transistors
13,100 million
2,200 million
Die Size
208 mm²
103 mm²
Foundry
TSMC
GlobalFoundries
Density
63.0M / mm²
21.4M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.3
OpenCL
2.0
2.1
Shader Model
6.8
6.7
Physical
Slot Width
IGP
Dual-slot
Length
—
145 mm
5.7 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x8
Other
Launch Price
—
79 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Arctic Islands
Successor
Navi III IGP
Vega