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
GEFORCE
GeForce GTX 480
CORE STATE
GF100
VRAM
1536 MB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
GTX 480
Core Specs
Shading Units
384
480
+25.0%
Shaders
384
480
+25.0%
TMUs
24
60
+150.0%
ROPs
16
48
+200.0%
Compute Units
6
—
SM Count
—
15
Clocks
Base Clock
1500 MHz
—
Boost Clock
1900 MHz
—
GPU Clock
—
701 MHz
Shader Clock
—
1401 MHz
Memory Clock
System Shared
924 MHz
3.7 Gbps effective
Memory
Memory Size
System Shared
1536 MB
VRAM (MB)
—
1,536
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
384 bit
Bandwidth
System Dependent
177.4 GB/s
Cache
L1 Cache
128 KB per Array
64 KB (per SM)
L2 Cache
2 MB
768 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
21.03 GPixel/s
Texture Rate
45.60 GTexel/s
42.06 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
1,345.0 GFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
168.1 GFLOPS (1:8)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
—
AI/RT
RT Cores
6
—
Power
TDP
40 W
250 W
TDP (W)
40
250
+525.0%
Suggested PSU
—
600 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
RDNA 2.0
Fermi
GPU Name
Rembrandt
GF100
Generation
Navi II IGP
(Rembrandt Mobile)
GeForce 400
Process Size
6 nm
40 nm
Transistors
13,100 million
3,100 million
Die Size
208 mm²
529 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
5.9M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
—
OpenCL
2.0
1.1
CUDA
—
2.0
Shader Model
6.8
5.1
Physical
Slot Width
IGP
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
2x DVI1x mini-HDMI 1.3a
Bus Interface
PCIe 4.0 x8
PCIe 2.0 x16
Other
Launch Price
—
499 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
GeForce 200
Successor
Navi III IGP
GeForce 500