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 580
CORE STATE
GF110
VRAM
1536 MB
CLOCK SPEED
—
TDP
244 W
BUS WIDTH
384 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
GTX 580
Core Specs
Shading Units
384
512
+33.3%
Shaders
384
512
+33.3%
TMUs
24
64
+166.7%
ROPs
16
48
+200.0%
Compute Units
6
—
SM Count
—
16
Clocks
Base Clock
1500 MHz
—
Boost Clock
1900 MHz
—
GPU Clock
—
772 MHz
Shader Clock
—
1544 MHz
Memory Clock
System Shared
1002 MHz
4 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
192.4 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
24.70 GPixel/s
Texture Rate
45.60 GTexel/s
49.41 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
1.581 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
197.6 GFLOPS (1:8)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
—
AI/RT
RT Cores
6
—
Power
TDP
40 W
244 W
TDP (W)
40
244
+510.0%
Suggested PSU
—
550 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
RDNA 2.0
Fermi 2.0
GPU Name
Rembrandt
GF110
Generation
Navi II IGP
(Rembrandt Mobile)
GeForce 500
Process Size
6 nm
40 nm
Transistors
13,100 million
3,000 million
Die Size
208 mm²
520 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
5.8M / 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
Height
—
111 mm
4.4 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 400
Successor
Navi III IGP
GeForce 600