NVIDIA RTX PRO 4000 Blackwell SFF vs NVIDIA GeForce GTX 1660 Ti
GPU Specs Compare
Graphics Card
Release Date
Aug 2025
Feb 2019
Generation
Blackwell PRO W
GeForce 16
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
577 MHz
1500 MHz
Boost Clock
1432 MHz
1770 MHz
Memory Clock
1125 MHz
1500 MHz
Memory
Memory Size
24GB
6GB
Memory Type
GDDR7
GDDR6
Memory Bus
192bit
192bit
Bandwidth
432.0GB/s
288.0GB/s
Render Config
SM Count
70
24
Shading Units
8960
1536
TMUs
280
96
ROPs
96
48
Tensor Cores
280
-
RT Cores
70
-
L1 Cache
128 KB (per SM)
64 KB (per SM)
L2 Cache
48 MB
1536 KB
Theoretical Performance
Pixel Rate
137.5 GPixel/s
84.96 GPixel/s
Texture Rate
401.0 GTexel/s
169.9 GTexel/s
FP16 (half)
25.66 TFLOPS
10.87 TFLOPS
FP32 (float)
25.66 TFLOPS
5.437 TFLOPS
FP64 (double)
401.0 GFLOPS
169.9 GFLOPS
Graphics Processor
GPU Name
GB203
TU116
Architecture
Blackwell 2.0
Turing
Foundry
TSMC
TSMC
Process Size
5 nm
12 nm
Transistors
45.6 billion
6.6 billion
Die Size
378 mm²
284 mm²
GPU Variant
-
TU116-400-A1
Board Design
TDP
70W
120W
Suggested PSU
250 W
300 W
Outputs
4x mini-DisplayPort 2.1b
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.3
CUDA
12.0
7.5
Shader Model
6.8
6.6
📊 Benchmark
3DMark Time Spy
-
6,346
3DMark Time Spy Extreme
-
2,883
OctaneBench
-
126
Battlefield 5 1080p
-
103
Shadow of the Tomb Raider 2160p
-
28
Shadow of the Tomb Raider 1440p
-
52
Shadow of the Tomb Raider 1080p
-
80
Battlefield 5 2160p
-
44
Blender
-
817
Battlefield 5 1440p
-
80
GTA 5 2160p
-
60
GTA 5 1440p
-
62
GTA 5 1080p
-
154