GeForce GT 640M LE vs Radeon HD 7660G plus HD 7670M Dual Graphics
If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M LE stacks up against Radeon HD 7660G plus HD 7670M Dual Graphics, check out specs charts below.
GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics are Laptop Graphics Cards
Note: GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 640M LE or Radeon HD 7660G plus HD 7670M Dual Graphics here:
Main Specs
GeForce GT 640M LE
Radeon HD 7660G plus HD 7670M Dual Graphics
Power consumption (TDP)
20 Watt
Interface
PCIe 2.0 x16
Memory type
DDR3\DDR5
DDR3,GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
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Both cards are used in Laptops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 7660G plus HD 7670M Dual Graphics - with Terascale 2.
GeForce GT 640M LE is manufactured by 28 nm process technology, and Radeon HD 7660G plus HD 7670M Dual Graphics - by 40 / 32 nm process technology.
Memory clock speed of GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics is 1800 MHz.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
0−1
1−2
ultra / 1080p
−
0−1
QHD / 1440p
0−1
0−1
low / 720p
1−2
12−14
medium / 1080p
0−1
3−4
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Assassin's Creed Odyssey is 1200% more, than GeForce GT 640M LE.
ultra / 1080p
−
3−4
QHD / 1440p
0−1
0−1
low / 720p
0−1
14−16
medium / 1080p
−
5−6
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics have the same average FPS in Call of Duty: Warzone.
low / 768p
60−65
110−120
medium / 768p
27−30
90−95
ultra / 1080p
7−8
35−40
4K / 2160p
−
10−11
high / 768p
16−18
60−65
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Counter-Strike: Global Offensive is 171% more, than GeForce GT 640M LE.
low / 768p
70−75
70−75
ultra / 1080p
0−1
14−16
medium / 1080p
45−50
45−50
GeForce GT 640M LE and Radeon HD 7660G plus HD 7670M Dual Graphics have the same average FPS in Cyberpunk 2077.
low / 768p
45−50
70−75
medium / 768p
10−11
45−50
ultra / 1080p
0−1
20−22
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Dota 2 is 106% more, than GeForce GT 640M LE.
high / 1080p
−
2−3
ultra / 1080p
−
2−3
4K / 2160p
−
0−1
low / 720p
0−1
10−11
medium / 1080p
−
3−4
ultra / 1080p
−
5−6
QHD / 1440p
−
1−2
low / 720p
21−24
50−55
medium / 1080p
0−1
9−10
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Fortnite is 136% more, than GeForce GT 640M LE.
high / 1080p
0−1
3−4
QHD / 1440p
0−1
0−1
low / 720p
0−1
16−18
medium / 1080p
0−1
6−7
low / 768p
18−20
40−45
high / 1080p
0−1
4−5
ultra / 1080p
−
3−4
QHD / 1440p
0−1
0−1
medium / 720p
12−14
35−40
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Grand Theft Auto V is 150% more, than GeForce GT 640M LE.
high / 1080p
−
1−2
ultra / 1080p
−
0−1
4K / 2160p
−
0−1
low / 720p
0−1
3−4
medium / 1080p
−
3−4
low / 768p
75−80
85−90
high / 1080p
27−30
60−65
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Minecraft is 41% more, than GeForce GT 640M LE.
high / 1080p
−
14−16
ultra / 1080p
−
12−14
low / 720p
8−9
24−27
medium / 1080p
−
14−16
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than GeForce GT 640M LE.
ultra / 1080p
−
3−4
QHD / 1440p
−
0−1
low / 720p
0−1
5−6
low / 768p
0−1
9−10
medium / 768p
−
7−8
high / 1080p
−
3−4
ultra / 1080p
−
3−4
4K / 2160p
−
0−1
low / 768p
45−50
70−75
medium / 768p
14−16
35−40
ultra / 1080p
0−1
12−14
high / 768p
12−14
30−35
The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in World of Tanks is 88% more, than GeForce GT 640M LE.
Full Specs
GeForce GT 640M LE
Radeon HD 7660G plus HD 7670M Dual Graphics
Architecture
Fermi / Kepler
Terascale 2
Code name
N13P-LP
Type
Laptop
Laptop
Release date
22 March 2012
15 May 2012
Pipelines
384
862
Core clock speed
685 / 600 MHz
Transistor count
585 million
Manufacturing process technology
28 nm
40 / 32 nm
Floating-point performance
384.0 gflops
Memory bus width
128bit
128 Bit
Memory clock speed
1800 - 4000 MHz
1800 MHz
Shared memory
-
-
DirectX
12 API
DirectX 11, Shader 5.0
Shader Model
5.1
OpenGL
4.5
OpenCL
1.1
Vulkan
N/A
CUDA
+
CUDA cores
Up to 384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
14 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
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