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 Pro 5500 XT
CORE STATE
Navi 14
VRAM
8 GB
CLOCK SPEED
1757 MHz
TDP
125 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 1.0
PROCESS
7 nm
LAUNCH DATE
2020
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Pro 5500 XT
Core Specs
Shading Units
384
1,536
+300.0%
Shaders
384
1,536
+300.0%
TMUs
24
96
+300.0%
ROPs
16
32
+100.0%
Compute Units
6
24
+300.0%
Clocks
Base Clock
1500 MHz
1187 MHz
Boost Clock
1900 MHz
1757 MHz
Memory Clock
System Shared
1750 MHz
14 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
224.0 GB/s
Cache
L1 Cache
128 KB per Array
—
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
56.22 GPixel/s
Texture Rate
45.60 GTexel/s
168.7 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
5.398 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
337.3 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
10.80 TFLOPS (2:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
125 W
TDP (W)
40
125
+212.5%
Suggested PSU
—
300 W
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
RDNA 1.0
GPU Name
Rembrandt
Navi 14
Generation
Navi II IGP
(Rembrandt Mobile)
Radeon Pro Mac
(Navi Series)
Process Size
6 nm
7 nm
Transistors
13,100 million
6,400 million
Die Size
208 mm²
158 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
40.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
2.1
Shader Model
6.8
6.8
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—