NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GTX 660 Rev. 2
GPU Specs Compare
Graphics Card
Release Date
Sep 2018
Sep 2014
Generation
GeForce 20
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1515 MHz
980 MHz
Boost Clock
1710 MHz
1032 MHz
Memory Clock
1750 MHz
1502 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
192bit
Bandwidth
448.0GB/s
144.2GB/s
Render Config
SM Count
46
-
Shading Units
2944
960
TMUs
184
80
ROPs
64
24
Tensor Cores
368
-
RT Cores
46
-
L1 Cache
64 KB (per SM)
16 KB (per SMX)
L2 Cache
4 MB
384 KB
Theoretical Performance
Pixel Rate
109.4 GPixel/s
20.64 GPixel/s
Texture Rate
314.6 GTexel/s
82.56 GTexel/s
FP16 (half)
20.14 TFLOPS
-
FP32 (float)
10.07 TFLOPS
1.981 TFLOPS
FP64 (double)
314.6 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
TU104
GK104
GPU Variant
TU104-400A-A1
-
Architecture
Turing
Kepler
Foundry
TSMC
TSMC
Process Size
12 nm
28 nm
Transistors
13.6 billion
3.54 billion
Die Size
545 mm²
294 mm²
Board Design
TDP
215W
140W
Suggested PSU
550 W
300 W
Outputs
1x HDMI 2.03x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
7.5
3.0
Shader Model
6.8
5.1
📊 Benchmark
3DMark Time Spy
11,078
-
3DMark Time Spy Extreme
5,146
-
3DMark Speed Way
2,171
-
Battlefield 5 1080p
158
-
Shadow of the Tomb Raider 2160p
46
-
Cyberpunk 2077 2160p
39
-
Shadow of the Tomb Raider 1440p
85
-
Cyberpunk 2077 1440p
47
-
Shadow of the Tomb Raider 1080p
127
-
Battlefield 5 2160p
63
-
Cyberpunk 2077 1080p
67
-
Battlefield 5 1440p
114
-
GTA 5 2160p
106
-
GTA 5 1440p
108
-
GTA 5 1080p
180
-