NVIDIA GeForce GTX 660 vs NVIDIA RTX PRO 2000 Blackwell
GPU Specs Compare
Graphics Card
Release Date
Sep 2012
Aug 2025
Generation
GeForce 600
Blackwell PRO W
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x8
Clock Speeds
Base Clock
980 MHz
982 MHz
Boost Clock
1032 MHz
1957 MHz
Memory Clock
1502 MHz
1125 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR7
Memory Bus
192bit
128bit
Bandwidth
144.2GB/s
288.0GB/s
Render Config
Shading Units
960
4352
TMUs
80
136
ROPs
24
64
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
384 KB
32 MB
SM Count
-
34
Tensor Cores
-
136
RT Cores
-
34
Theoretical Performance
Pixel Rate
20.64 GPixel/s
125.2 GPixel/s
Texture Rate
82.56 GTexel/s
266.2 GTexel/s
FP32 (float)
1.981 TFLOPS
17.03 TFLOPS
FP64 (double)
82.56 GFLOPS
266.2 GFLOPS
FP16 (half)
-
17.03 TFLOPS
Graphics Processor
GPU Name
GK106
GB206
GPU Variant
GK106-400-A1
-
Architecture
Kepler
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.54 billion
21.9 billion
Die Size
221 mm²
181 mm²
Board Design
TDP
140W
70W
Suggested PSU
300 W
250 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
4x mini-DisplayPort 2.1b
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.4
CUDA
3.0
12.0
Shader Model
5.1
6.8
📊 Benchmark
3DMark Time Spy
1,194
-
3DMark Time Spy Extreme
260
-
OctaneBench
27
-
Blender
111
-