Radeon R9 290 and GeForce GT 640M LE - video card comparison
Passmark - benchmark score Radeon R9 290 vs GeForce GT 640M LE
Radeon R9 290
8336
GeForce GT 640M LE
720
Radeon R9 290
GeForce GT 640M LE
Architecture
GCN 2.0 (2013−2017)
Fermi / Kepler (2012)
GPU code name
Hawaii
N13P-LP
Market segment
Desktop
Laptop
Release date
November 2013
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Core clock speed
947 MHz
Up to 500 MHz
CUDA cores
-
Up to 384
Floating-point performance
4,849 gflops
384.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
585 million
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
275 Watt
20 Watt
Texture fill rate
151.5
Up to 16.0 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
512 Bit
128bit
Memory clock speed
5000 MHz
1800 - 4000 MHz
Memory bandwidth
320.0 GB/s
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (12_0)
12 API
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.5
Shader Model
6.3
5.1
Vulkan
1.2.131
N/A
3D Blu-Ray
-
+
Optimus
-
+