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 480
CORE STATE
Ellesmere
VRAM
8 GB
CLOCK SPEED
1266 MHz
TDP
150 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RX 480
Core Specs
Shading Units
384
2,304
+500.0%
Shaders
384
2,304
+500.0%
TMUs
24
144
+500.0%
ROPs
16
32
+100.0%
Compute Units
6
36
+500.0%
Clocks
Base Clock
1500 MHz
1120 MHz
Boost Clock
1900 MHz
1266 MHz
Memory Clock
System Shared
2000 MHz
8 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
256 bit
Bandwidth
System Dependent
256.0 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
40.51 GPixel/s
Texture Rate
45.60 GTexel/s
182.3 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
5.834 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
364.6 GFLOPS (1:16)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
5.834 TFLOPS (1:1)
AI/RT
RT Cores
6
—
Power
TDP
40 W
150 W
TDP (W)
40
150
+275.0%
Suggested PSU
—
450 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
RDNA 2.0
GCN 4.0
GPU Name
Rembrandt
Ellesmere
Generation
Navi II IGP
(Rembrandt Mobile)
Arctic Islands
(RX 400)
Process Size
6 nm
14 nm
Transistors
13,100 million
5,700 million
Die Size
208 mm²
232 mm²
Foundry
TSMC
GlobalFoundries
Density
63.0M / mm²
24.6M / 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
—
240 mm
9.4 inches
Height
—
95 mm
3.7 inches
Outputs
Portable Device Dependent
1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Launch Price
—
229 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Pirate Islands
Successor
Navi III IGP
Polaris