NVIDIA GeForce RTX 2080 Ti vs NVIDIA GeForce GTX 660 Ti
We compared two Desktop platform GPUs: 11GB VRAM GeForce RTX 2080 Ti and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 2080 Ti 's Advantages
Released 6 years and 1 months late
Boost Clock has increased by 58% (1545MHz vs 980MHz)
More VRAM (11GB vs 2GB)
Larger VRAM bandwidth (616.0GB/s vs 144.2GB/s)
3008 additional rendering cores
NVIDIA GeForce GTX 660 Ti 's Advantages
Lower TDP (150W vs 250W)
Score
Benchmark
FP32 (float)
GeForce RTX 2080 Ti
+410%
13.45 TFLOPS
GeForce GTX 660 Ti
2.634 TFLOPS
3DMark Time Spy
GeForce RTX 2080 Ti
+804%
14622
GeForce GTX 660 Ti
1616
Graphics Card
Sep 2018
Release Date
Aug 2012
GeForce 20
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1350 MHz
Base Clock
915 MHz
1545 MHz
Boost Clock
980 MHz
1750 MHz
Memory Clock
1502 MHz
Memory
11GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
352bit
Memory Bus
192bit
616.0GB/s
Bandwidth
144.2GB/s
Render Config
-
-
-
68
SM Count
-
4352
Shading Units
1344
272
TMUs
112
88
ROPs
24
544
Tensor Cores
-
68
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
0 MB
L2 Cache
384 KB
-
-
-
Theoretical Performance
136.0 GPixel/s
Pixel Rate
27.44 GPixel/s
420.2 GTexel/s
Texture Rate
109.8 GTexel/s
26.90 TFLOPS
FP16 (half)
-
13.45 TFLOPS
FP32 (float)
2.634 TFLOPS
420.2 GFLOPS
FP64 (double)
109.8 GFLOPS
Board Design
250W
TDP
150W
600 W
Suggested PSU
450 W
1x HDMI 2.0
3x DisplayPort 1.4a
1x USB Type-C
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
2x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
TU102
GPU Name
GK104
TU102-300A-K1-A1
GPU Variant
GK104-300-KD-A2
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
18.6 billion
Transistors
3.54 billion
754 mm²
Die Size
294 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.0
6.6
Shader Model
5.1
