GeForce GT 640M LE vs Radeon HD 8770M
If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and Radeon HD 8770M, 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 8770M, check out specs charts below.
GeForce GT 640M LE and Radeon HD 8770M are Laptop Graphics Cards
Note: GeForce GT 640M LE and Radeon HD 8770M 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 8770M here:
Main Specs
GeForce GT 640M LE
Radeon HD 8770M
Power consumption (TDP)
20 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Memory type
DDR3\DDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon HD 8770M uses PCIe 3.0 x8 interface.
GeForce GT 640M LE and Radeon HD 8770M have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 8770M - with GCN.
GeForce GT 640M LE and Radeon HD 8770M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 8770M is 2700 MHz higher, than GeForce GT 640M LE.
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
7−8
ultra / 1080p
−
4−5
QHD / 1440p
0−1
0−1
low / 720p
1−2
16−18
medium / 1080p
0−1
8−9
The average gaming FPS of Radeon HD 8770M in Assassin's Creed Odyssey is 1600% more, than GeForce GT 640M LE.
high / 1080p
−
12−14
ultra / 1080p
−
10−11
QHD / 1440p
0−1
0−1
low / 720p
0−1
24−27
medium / 1080p
−
12−14
low / 768p
50−55
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640M LE in Call of Duty: Warzone is 6% more, than Radeon HD 8770M.
low / 768p
60−65
140−150
medium / 768p
27−30
110−120
ultra / 1080p
7−8
55−60
QHD / 1440p
−
30−33
4K / 2160p
−
27−30
high / 768p
16−18
80−85
The average gaming FPS of Radeon HD 8770M in Counter-Strike: Global Offensive is 257% more, than GeForce GT 640M LE.
low / 768p
70−75
55−60
ultra / 1080p
0−1
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640M LE in Cyberpunk 2077 is 15% more, than Radeon HD 8770M.
low / 768p
45−50
80−85
medium / 768p
10−11
60−65
ultra / 1080p
0−1
35−40
The average gaming FPS of Radeon HD 8770M in Dota 2 is 148% more, than GeForce GT 640M LE.
high / 1080p
−
8−9
ultra / 1080p
−
8−9
4K / 2160p
−
3−4
low / 720p
0−1
18−20
medium / 1080p
−
9−10
high / 1080p
−
14−16
ultra / 1080p
−
10−11
low / 720p
21−24
60−65
medium / 1080p
0−1
24−27
The average gaming FPS of Radeon HD 8770M in Fortnite is 181% more, than GeForce GT 640M LE.
high / 1080p
0−1
12−14
ultra / 1080p
−
10−12
QHD / 1440p
0−1
1−2
low / 720p
0−1
27−30
medium / 1080p
0−1
14−16
low / 768p
18−20
50−55
medium / 768p
−
45−50
high / 1080p
0−1
12−14
ultra / 1080p
−
6−7
QHD / 1440p
0−1
0−1
medium / 720p
12−14
−
The average gaming FPS of Radeon HD 8770M in Grand Theft Auto V is 173% more, than GeForce GT 640M LE.
high / 1080p
−
5−6
ultra / 1080p
−
3−4
4K / 2160p
−
0−1
low / 720p
0−1
12−14
medium / 1080p
−
6−7
low / 768p
75−80
95−100
high / 1080p
27−30
90−95
ultra / 1080p
−
80−85
medium / 1080p
−
90−95
The average gaming FPS of Radeon HD 8770M in Minecraft is 79% more, than GeForce GT 640M LE.
high / 1080p
−
16−18
ultra / 1080p
−
14−16
low / 720p
8−9
30−35
medium / 1080p
−
18−20
The average gaming FPS of Radeon HD 8770M in PLAYERUNKNOWN'S BATTLEGROUNDS is 300% more, than GeForce GT 640M LE.
ultra / 1080p
−
7−8
QHD / 1440p
−
0−1
low / 720p
0−1
12−14
medium / 1080p
−
10−12
low / 768p
0−1
24−27
medium / 768p
−
16−18
high / 1080p
−
9−10
ultra / 1080p
−
6−7
4K / 2160p
−
6−7
low / 768p
45−50
85−90
medium / 768p
14−16
45−50
ultra / 1080p
0−1
20−22
high / 768p
12−14
35−40
The average gaming FPS of Radeon HD 8770M in World of Tanks is 128% more, than GeForce GT 640M LE.
Full Specs
GeForce GT 640M LE
Radeon HD 8770M
Architecture
Fermi / Kepler
GCN
Code name
N13P-LP
Mars
Type
Laptop
Laptop
Release date
22 March 2012
16 November 2012
Pipelines
384
384
Core clock speed
775 MHz
Boost Clock
825 MHz
Transistor count
585 million
950 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
19.80
Floating-point performance
384.0 gflops
633.6 gflops
Memory bus width
128bit
128 Bit
Memory clock speed
1800 - 4000 MHz
4500 MHz
Memory bandwidth
72 GB/s
Shared memory
-
-
DirectX
12 API
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
N/A
1.2.131
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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