Radeon HD 7750 and GeForce GT 640M - video card comparison
Passmark - benchmark score Radeon HD 7750 vs GeForce GT 640M
Radeon HD 7750
1754
GeForce GT 640M
946
Radeon HD 7750
GeForce GT 640M
Architecture
GCN 1.0 (2012−2020)
Kepler (2012−2018)
GPU code name
Cape Verde
N13P-GS
Market segment
Desktop
Laptop
Release date
February 2012
March 2012
Bus support
PCIe 2.1 x16
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
-
Boost clock speed
800 MHz
645 MHz
Core clock speed
-
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
819.2 gflops
480.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
1,270 million
Pipelines / CUDA cores
512
384
Power consumption (TDP)
75 Watt
32 Watt
Texture fill rate
25.60
Up to 20.0 billion/sec
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
128bit
Memory clock speed
1125 MHz
1800 - 4000 MHz
Memory bandwidth
72 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DisplayPort support
+
-
DirectX
DirectX® 11
12 API
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
-
1.1.126
3D Blu-Ray
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
Optimus
-
+
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-