GeForce GT 640 and Radeon RX 6700 XT - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon RX 6700 XT
GeForce GT 640
1209
Radeon RX 6700 XT
20482
GeForce GT 640
Radeon RX 6700 XT
Architecture
Kepler (2012−2018)
Navi / RDNA2 (2020−2022)
GPU code name
GK107
Navi 22
Market segment
Desktop
Desktop
Release date
June 2012
March 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
1x 6-pin + 1x 8-pin
Boost clock speed
-
2581 MHz
Core clock speed
902 MHz
2321 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
1,270 million
17,200 million
Pipelines / CUDA cores
384
2560
Power consumption (TDP)
65 Watt
230 Watt
Texture fill rate
28.86
413.0
Memory type
DDR3
GDDR6
Maximum RAM amount
2 GB
12 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
1782 MHz
16000 MHz
Memory bandwidth
28.51 GB/s
384.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
3.0
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2