GPU Comparison
GEFORCE
NVIDIA GeForce GTX 660
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
1032 MHz
TDP
140 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
L40
CORE STATE
AD102
VRAM
48 GB
CLOCK SPEED
2490 MHz
TDP
300 W
BUS WIDTH
384 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
GTX 660
L40
Core Specs
Shading Units
960
18,176
+1793.3%
Shaders
960
18,176
+1793.3%
TMUs
80
568
+610.0%
ROPs
24
192
+700.0%
SM Count
—
142
Clocks
Base Clock
980 MHz
735 MHz
Boost Clock
1032 MHz
2490 MHz
Memory Clock
1502 MHz
6 Gbps effective
2250 MHz
18 Gbps effective
Memory
Memory Size
2 GB
48 GB
VRAM (MB)
2,048
49,152
+2300.0%
Memory Type
GDDR5
GDDR6
Memory Bus
192 bit
384 bit
Bandwidth
144.2 GB/s
864.0 GB/s
Cache
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
384 KB
96 MB
Performance
Pixel Rate
20.64 GPixel/s
478.1 GPixel/s
Texture Rate
82.56 GTexel/s
1,414.3 GTexel/s
FP32 (TFLOPS)
1.981 TFLOPS
90.52 TFLOPS
FP64 (TFLOPS)
82.56 GFLOPS (1:24)
1,414.3 GFLOPS (1:64)
FP16 (TFLOPS)
—
90.52 TFLOPS (1:1)
AI/RT
RT Cores
—
142
Tensor Cores
—
568
Power
TDP
140 W
300 W
TDP (W)
140
300
+114.3%
Suggested PSU
300 W
700 W
Power Connectors
1x 6-pin
1x 16-pin
Architecture
Architecture
Kepler
Ada Lovelace
GPU Name
GK106
AD102
Generation
GeForce 600
Server Ada
(Lxx)
Process Size
28 nm
5 nm
Transistors
2,540 million
76,300 million
Die Size
221 mm²
609 mm²
Foundry
TSMC
TSMC
Density
11.5M / mm²
125.3M / mm²
API Support
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.175
1.4
OpenCL
3.0
3.0
CUDA
3.0
8.9
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
241 mm
9.5 inches
267 mm
10.5 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
4x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
229 USD
—
Production
End-of-life
End-of-life
Predecessor
GeForce 500
Server Ampere
Successor
GeForce 700
Server Hopper