NVIDIA RTX A400 vs NVIDIA GeForce GTX 660
GPU Specs Compare
Graphics Card
Release Date
Apr 2024
Sep 2012
Generation
Quadro Ampere(Ax000)
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1417 MHz
980 MHz
Boost Clock
1762 MHz
1032 MHz
Memory Clock
1500 MHz
1502 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
64bit
192bit
Bandwidth
96.00GB/s
144.2GB/s
Render Config
SM Count
6
-
Shading Units
768
960
TMUs
24
80
ROPs
16
24
Tensor Cores
24
-
RT Cores
6
-
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
2 MB
384 KB
Theoretical Performance
Pixel Rate
28.19 GPixel/s
20.64 GPixel/s
Texture Rate
42.29 GTexel/s
82.56 GTexel/s
FP16 (half)
2.706 TFLOPS
-
FP32 (float)
2.706 TFLOPS
1.981 TFLOPS
FP64 (double)
42.29 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
GA107
GK106
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
8.7 billion
2.54 billion
Die Size
200 mm²
221 mm²
GPU Variant
-
GK106-400-A1
Board Design
TDP
50W
140W
Suggested PSU
250 W
300 W
Outputs
4x mini-DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
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
8.6
3.0
Shader Model
6.8
5.1
📊 Benchmark
3DMark Time Spy
-
1,194
3DMark Time Spy Extreme
-
260
OctaneBench
-
27
Blender
-
111