GeForce GT 640 vs Mobility Radeon HD 4830
When choosing between GeForce GT 640 and Mobility Radeon HD 4830, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 640 and Mobility Radeon HD 4830.
Mobility Radeon HD 4830 is a Laptop Graphics Card
Note: Mobility Radeon HD 4830 is only used in laptop graphics. It has 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 Mobility Radeon HD 4830 here:
Main Specs
GeForce GT 640
Mobility Radeon HD 4830
Power consumption (TDP)
65 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR3, DDR3
Maximum RAM amount
2 GB
1 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GT 640 is connected by PCIe 3.0 x16, and Mobility Radeon HD 4830 uses PCIe 2.0 x16 interface.
GeForce GT 640 has 1 GB more memory, than Mobility Radeon HD 4830.
GeForce GT 640 is used in Desktops, and Mobility Radeon HD 4830 - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Mobility Radeon HD 4830 - with Terascale 1.
Core clock speed of GeForce GT 640 is 352 MHz higher, than Mobility Radeon HD 4830.
GeForce GT 640 is manufactured by 28 nm process technology, and Mobility Radeon HD 4830 - by 40 nm process technology.
Memory clock speed of GeForce GT 640 is 1082 MHz higher, than Mobility Radeon HD 4830.
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
2−3
0−1
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
10−11
medium / 1080p
5−6
1−2
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 66% more, than Mobility Radeon HD 4830.
high / 1080p
7−8
−
ultra / 1080p
5−6
2−3
QHD / 1440p
0−1
0−1
low / 720p
20−22
10−11
medium / 1080p
7−8
3−4
The average gaming FPS of GeForce GT 640 in Battlefield 5 is 120% more, than Mobility Radeon HD 4830.
low / 768p
50−55
50−55
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 4830 in Call of Duty: Warzone is 11% more, than GeForce GT 640.
low / 768p
110−120
110−120
medium / 768p
90−95
80−85
ultra / 1080p
45−50
30−35
QHD / 1440p
24−27
−
4K / 2160p
18−20
9−10
high / 768p
65−70
55−60
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 15% more, than Mobility Radeon HD 4830.
low / 768p
70−75
70−75
ultra / 1080p
21−24
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than Mobility Radeon HD 4830.
low / 768p
70−75
70−75
medium / 768p
50−55
40−45
ultra / 1080p
27−30
16−18
The average gaming FPS of GeForce GT 640 in Dota 2 is 15% more, than Mobility Radeon HD 4830.
high / 1080p
3−4
1−2
ultra / 1080p
3−4
−
4K / 2160p
2−3
0−1
low / 720p
14−16
8−9
medium / 1080p
4−5
2−3
The average gaming FPS of GeForce GT 640 in Far Cry 5 is 75% more, than Mobility Radeon HD 4830.
high / 1080p
10−12
−
ultra / 1080p
5−6
4−5
QHD / 1440p
2−3
1−2
low / 720p
50−55
45−50
medium / 1080p
16−18
5−6
The average gaming FPS of GeForce GT 640 in Fortnite is 35% more, than Mobility Radeon HD 4830.
high / 1080p
6−7
2−3
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
12−14
medium / 1080p
9−10
4−5
The average gaming FPS of GeForce GT 640 in Forza Horizon 4 is 100% more, than Mobility Radeon HD 4830.
low / 768p
45−50
40−45
high / 1080p
7−8
2−3
ultra / 1080p
3−4
−
QHD / 1440p
0−1
0−1
medium / 720p
40−45
30−35
The average gaming FPS of GeForce GT 640 in Grand Theft Auto V is 28% more, than Mobility Radeon HD 4830.
high / 1080p
2−3
0−1
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
1−2
medium / 1080p
4−5
−
The average gaming FPS of GeForce GT 640 in Metro Exodus is 700% more, than Mobility Radeon HD 4830.
low / 768p
80−85
85−90
high / 1080p
−
55−60
ultra / 1080p
70−75
−
The average gaming FPS of Mobility Radeon HD 4830 in Minecraft is 6% more, than GeForce GT 640.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
27−30
21−24
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 12% more, than Mobility Radeon HD 4830.
high / 1080p
6−7
−
ultra / 1080p
4−5
−
QHD / 1440p
0−1
0−1
low / 720p
7−8
3−4
The average gaming FPS of GeForce GT 640 in Red Dead Redemption 2 is 133% more, than Mobility Radeon HD 4830.
low / 768p
14−16
5−6
medium / 768p
10−11
5−6
high / 1080p
5−6
2−3
ultra / 1080p
4−5
−
4K / 2160p
0−1
0−1
The average gaming FPS of GeForce GT 640 in The Witcher 3: Wild Hunt is 150% more, than Mobility Radeon HD 4830.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
10−12
high / 768p
30−35
27−30
The average gaming FPS of GeForce GT 640 in World of Tanks is 5% more, than Mobility Radeon HD 4830.
Full Specs
GeForce GT 640
Mobility Radeon HD 4830
Architecture
Kepler
Terascale 1
Code name
GK107
M97
Type
Desktop
Laptop
Release date
5 June 2012
3 March 2009
Pipelines
384
640
Core clock speed
902 MHz
550 MHz
Transistor count
1,270 million
826 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
17.60
Floating-point performance
692.7 gflops
704.0 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
700 MHz
Memory bandwidth
28.51 GB/s
44.8 GB/s
Shared memory
-
DirectX
12 (11_0)
10.1 (10_1)
Shader Model
5.1
4.1
OpenGL
4.6
3.3
OpenCL
1.2
1.1
Vulkan
1.1.126
N/A
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
large
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