GeForce GT 640 and Radeon RX 7900 XT - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon RX 7900 XT
GeForce GT 640
1209
Radeon RX 7900 XT
29721
GeForce GT 640
Radeon RX 7900 XT
Architecture
Kepler (2012−2018)
RDNA 3
GPU code name
GK107
Navi 31 XT
Market segment
Desktop
Desktop
Release date
June 2012
November 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
-
2000 MHz
Core clock speed
902 MHz
-
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
1,270 million
57,700 million
Pipelines / CUDA cores
384
5376
Power consumption (TDP)
65 Watt
315 Watt
Texture fill rate
28.86
804.4
Memory type
DDR3
GDDR6
Maximum RAM amount
2 GB
20 GB
Memory bus width
128 Bit
320 Bit
Memory clock speed
1782 MHz
20000 MHz
Memory bandwidth
28.51 GB/s
800.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
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
6.7
Vulkan
1.1.126
1.3