GeForce GT 640 vs Mobility Radeon HD 4870
When comparing GeForce GT 640 and Mobility Radeon HD 4870, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640 and Mobility Radeon HD 4870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Mobility Radeon HD 4870 is a Laptop Graphics Card
Note: Mobility Radeon HD 4870 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 4870 here:
Main Specs
GeForce GT 640
Mobility Radeon HD 4870
Power consumption (TDP)
65 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR5
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 4870 uses PCIe 2.0 x16 interface.
GeForce GT 640 has 1 GB more memory, than Mobility Radeon HD 4870.
GeForce GT 640 is used in Desktops, and Mobility Radeon HD 4870 - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Mobility Radeon HD 4870 - with Terascale 1.
Core clock speed of GeForce GT 640 is 352 MHz higher, than Mobility Radeon HD 4870.
GeForce GT 640 is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 - by 55 nm process technology.
Memory clock speed of GeForce GT 640 is 894 MHz higher, than Mobility Radeon HD 4870.
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
7−8
ultra / 1080p
1−2
4−5
QHD / 1440p
0−1
0−1
low / 720p
14−16
16−18
medium / 1080p
5−6
8−9
The average gaming FPS of Mobility Radeon HD 4870 in Assassin's Creed Odyssey is 50% more, than GeForce GT 640.
high / 1080p
7−8
12−14
ultra / 1080p
5−6
10−11
QHD / 1440p
0−1
0−1
low / 720p
20−22
24−27
medium / 1080p
7−8
12−14
The average gaming FPS of Mobility Radeon HD 4870 in Battlefield 5 is 50% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 4870 in Call of Duty: Warzone is 4% more, than GeForce GT 640.
low / 768p
110−120
140−150
medium / 768p
90−95
110−120
ultra / 1080p
45−50
55−60
QHD / 1440p
24−27
30−33
4K / 2160p
18−20
27−30
high / 768p
65−70
80−85
The average gaming FPS of Mobility Radeon HD 4870 in Counter-Strike: Global Offensive is 24% more, than GeForce GT 640.
low / 768p
70−75
55−60
ultra / 1080p
21−24
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 11% more, than Mobility Radeon HD 4870.
low / 768p
70−75
80−85
medium / 768p
50−55
60−65
ultra / 1080p
27−30
35−40
The average gaming FPS of Mobility Radeon HD 4870 in Dota 2 is 17% more, than GeForce GT 640.
high / 1080p
3−4
8−9
ultra / 1080p
3−4
8−9
4K / 2160p
2−3
3−4
low / 720p
14−16
18−20
medium / 1080p
4−5
9−10
The average gaming FPS of Mobility Radeon HD 4870 in Far Cry 5 is 80% more, than GeForce GT 640.
high / 1080p
10−12
14−16
ultra / 1080p
5−6
10−11
QHD / 1440p
2−3
−
low / 720p
50−55
60−65
medium / 1080p
16−18
24−27
The average gaming FPS of Mobility Radeon HD 4870 in Fortnite is 33% more, than GeForce GT 640.
high / 1080p
6−7
12−14
ultra / 1080p
−
10−12
QHD / 1440p
4−5
1−2
4K / 2160p
2−3
−
low / 720p
21−24
27−30
medium / 1080p
9−10
14−16
The average gaming FPS of Mobility Radeon HD 4870 in Forza Horizon 4 is 40% more, than GeForce GT 640.
low / 768p
45−50
50−55
medium / 768p
−
45−50
high / 1080p
7−8
12−14
ultra / 1080p
3−4
6−7
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of Mobility Radeon HD 4870 in Grand Theft Auto V is 26% more, than GeForce GT 640.
high / 1080p
2−3
5−6
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
8−9
12−14
medium / 1080p
4−5
6−7
The average gaming FPS of Mobility Radeon HD 4870 in Metro Exodus is 60% more, than GeForce GT 640.
low / 768p
80−85
95−100
high / 1080p
−
90−95
ultra / 1080p
70−75
80−85
medium / 1080p
−
90−95
The average gaming FPS of Mobility Radeon HD 4870 in Minecraft is 16% more, than GeForce GT 640.
high / 1080p
−
16−18
ultra / 1080p
12−14
14−16
low / 720p
27−30
30−35
medium / 1080p
14−16
18−20
The average gaming FPS of Mobility Radeon HD 4870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce GT 640.
high / 1080p
6−7
−
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
7−8
12−14
medium / 1080p
−
10−12
The average gaming FPS of Mobility Radeon HD 4870 in Red Dead Redemption 2 is 66% more, than GeForce GT 640.
low / 768p
14−16
24−27
medium / 768p
10−11
16−18
high / 1080p
5−6
9−10
ultra / 1080p
4−5
6−7
4K / 2160p
0−1
6−7
The average gaming FPS of Mobility Radeon HD 4870 in The Witcher 3: Wild Hunt is 75% more, than GeForce GT 640.
low / 768p
70−75
85−90
medium / 768p
35−40
45−50
ultra / 1080p
16−18
20−22
high / 768p
30−35
35−40
The average gaming FPS of Mobility Radeon HD 4870 in World of Tanks is 23% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Mobility Radeon HD 4870
Architecture
Kepler
Terascale 1
Code name
GK107
M98-XT
Type
Desktop
Laptop
Release date
5 June 2012
9 January 2009
Pipelines
384
800
Core clock speed
902 MHz
550 MHz
Transistor count
1,270 million
956 million
Manufacturing process technology
28 nm
55 nm
Texture fill rate
28.86
22.00
Floating-point performance
692.7 gflops
880.0 gflops
Length
145 mm
Memory bus width
128 Bit
256 Bit
Memory clock speed
1782 MHz
888 MHz
Memory bandwidth
28.51 GB/s
56.83 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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