NVIDIA GeForce GTX 1660 Ti vs AMD Radeon Instinct MI355X
GPU Specs Compare
Graphics Card
Release Date
Feb 2019
Jun 2025
Generation
GeForce 16
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1500 MHz
1000 MHz
Boost Clock
1770 MHz
2400 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
6GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
192bit
8192bit
Bandwidth
288.0GB/s
8.19TB/s
Render Config
SM Count
24
-
Shading Units
1536
16384
TMUs
96
1024
ROPs
48
0
L1 Cache
64 KB (per SM)
32 KB (per CU)
L2 Cache
1536 KB
32 MB
Compute Units
-
256
Tensor Cores
-
1216
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
84.96 GPixel/s
0 MPixel/s
Texture Rate
169.9 GTexel/s
2457.6 GTexel/s
FP16 (half)
10.87 TFLOPS
78.64 TFLOPS
FP32 (float)
5.437 TFLOPS
78.64 TFLOPS
FP64 (double)
169.9 GFLOPS
39.32 TFLOPS
Graphics Processor
GPU Name
TU116
MI350 256CU
GPU Variant
TU116-400-A1
-
Architecture
Turing
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
12 nm
3 nm
Transistors
6.6 billion
185 billion
Die Size
284 mm²
Unknown
Board Design
TDP
120W
1400W
Suggested PSU
300 W
1800 W
Outputs
1x DVI1x HDMI 2.01x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 (12_1)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
7.5
-
Shader Model
6.6
N/A
📊 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
-