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
GeForce RTX 3080 12 GB
CORE STATE
GA102
VRAM
12 GB
CLOCK SPEED
1710 MHz
TDP
350 W
BUS WIDTH
384 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
GTX 660
RTX 3080 12 GB
Core Specs
Shading Units
960
8,960
+833.3%
Shaders
960
8,960
+833.3%
TMUs
80
280
+250.0%
ROPs
24
96
+300.0%
SM Count
—
70
Clocks
Base Clock
980 MHz
1260 MHz
Boost Clock
1032 MHz
1710 MHz
Memory Clock
1502 MHz
6 Gbps effective
1188 MHz
19 Gbps effective
Memory
Memory Size
2 GB
12 GB
VRAM (MB)
2,048
12,288
+500.0%
Memory Type
GDDR5
GDDR6X
Memory Bus
192 bit
384 bit
Bandwidth
144.2 GB/s
912.4 GB/s
Cache
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
384 KB
6 MB
Performance
Pixel Rate
20.64 GPixel/s
164.2 GPixel/s
Texture Rate
82.56 GTexel/s
478.8 GTexel/s
FP32 (TFLOPS)
1.981 TFLOPS
30.64 TFLOPS
FP64 (TFLOPS)
82.56 GFLOPS (1:24)
478.8 GFLOPS (1:64)
FP16 (TFLOPS)
—
30.64 TFLOPS (1:1)
AI/RT
RT Cores
—
70
Tensor Cores
—
280
Power
TDP
140 W
350 W
TDP (W)
140
350
+150.0%
Suggested PSU
300 W
750 W
Power Connectors
1x 6-pin
1x 12-pin
Architecture
Architecture
Kepler
Ampere
GPU Name
GK106
GA102
Generation
GeForce 600
GeForce 30
Process Size
28 nm
8 nm
Transistors
2,540 million
28,300 million
Die Size
221 mm²
628 mm²
Foundry
TSMC
Samsung
Density
11.5M / mm²
45.1M / 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
8.6
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
241 mm
9.5 inches
285 mm
11.2 inches
Height
—
112 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.13x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
229 USD
799 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 500
GeForce 20
Successor
GeForce 700
GeForce 40