GeForce GTX 645 OEM and Riva TNT - video card comparison
GeForce GTX 645 OEM
Riva TNT
Architecture
Kepler (2012−2018)
Fahrenheit (1998−2000)
GPU code name
GK106
NV4
Market segment
Desktop
Desktop
Release date
April 2013
March 1998
Interface
PCIe 3.0 x16
AGP 2x
Supplementary power connectors
None
None
Core clock speed
824 MHz
90 MHz
Floating-point performance
949.2 gflops
-
Manufacturing process technology
28 nm
350 nm
Number of transistors
2,540 million
7 million
Pipelines / CUDA cores
576
-
Power consumption (TDP)
65 Watt
-
Texture fill rate
39.55
0.18
Memory type
GDDR5
SDR
Maximum RAM amount
1 GB
16 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4000 MHz
110 MHz
Memory bandwidth
64 GB/s
1.76 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x VGA
HDMI
+
-
DirectX
12 (11_0)
5.0
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
1.2
Shader Model
5.1
-
Vulkan
1.1.126
N/A