GeForce GT 640 vs Radeon HD 6870
When choosing between GeForce GT 640 and Radeon HD 6870, 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 Radeon HD 6870.
Main Specs
GeForce GT 640
Radeon HD 6870
Power consumption (TDP)
65 Watt
151 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 6870 has 132% more power consumption, than GeForce GT 640.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon HD 6870 uses PCIe 2.0 x16 interface.
GeForce GT 640 has 1 GB more memory, than Radeon HD 6870.
Both cards are used in Desktops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 6870 - with Terascale 2.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon HD 6870 - by 40 nm process technology.
Radeon HD 6870 is 75 mm longer, than GeForce GT 640.
Memory clock speed of GeForce GT 640 is 732 MHz higher, than Radeon HD 6870.
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
10−12
ultra / 1080p
1−2
6−7
QHD / 1440p
0−1
1−2
low / 720p
14−16
24−27
medium / 1080p
5−6
12−14
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 133% more, than GeForce GT 640.
high / 1080p
7−8
18−20
ultra / 1080p
5−6
14−16
QHD / 1440p
0−1
1−2
low / 720p
20−22
35−40
medium / 1080p
7−8
20−22
The average gaming FPS of Radeon HD 6870 in Battlefield 5 is 130% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
−
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640 in Call of Duty: Warzone is 10% more, than Radeon HD 6870.
low / 768p
110−120
180−190
medium / 768p
90−95
140−150
ultra / 1080p
45−50
75−80
QHD / 1440p
24−27
40−45
4K / 2160p
18−20
30−33
high / 768p
65−70
110−120
The average gaming FPS of Radeon HD 6870 in Counter-Strike: Global Offensive is 62% more, than GeForce GT 640.
low / 768p
70−75
55−60
ultra / 1080p
21−24
30−33
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 4% more, than Radeon HD 6870.
low / 768p
70−75
95−100
medium / 768p
50−55
75−80
ultra / 1080p
27−30
50−55
The average gaming FPS of Radeon HD 6870 in Dota 2 is 47% more, than GeForce GT 640.
high / 1080p
3−4
12−14
ultra / 1080p
3−4
12−14
4K / 2160p
2−3
5−6
low / 720p
14−16
27−30
medium / 1080p
4−5
14−16
The average gaming FPS of Radeon HD 6870 in Far Cry 5 is 200% more, than GeForce GT 640.
high / 1080p
10−12
20−22
ultra / 1080p
5−6
14−16
QHD / 1440p
2−3
−
low / 720p
50−55
80−85
medium / 1080p
16−18
35−40
The average gaming FPS of Radeon HD 6870 in Fortnite is 85% more, than GeForce GT 640.
high / 1080p
6−7
18−20
ultra / 1080p
−
14−16
QHD / 1440p
4−5
5−6
4K / 2160p
2−3
−
low / 720p
21−24
40−45
medium / 1080p
9−10
21−24
The average gaming FPS of Radeon HD 6870 in Forza Horizon 4 is 120% more, than GeForce GT 640.
low / 768p
45−50
70−75
medium / 768p
−
60−65
high / 1080p
7−8
21−24
ultra / 1080p
3−4
9−10
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 6870 in Grand Theft Auto V is 78% more, than GeForce GT 640.
high / 1080p
2−3
7−8
ultra / 1080p
0−1
5−6
4K / 2160p
0−1
1−2
low / 720p
8−9
21−24
medium / 1080p
4−5
9−10
The average gaming FPS of Radeon HD 6870 in Metro Exodus is 160% more, than GeForce GT 640.
low / 768p
80−85
100−110
ultra / 1080p
70−75
90−95
medium / 1080p
−
100−105
The average gaming FPS of Radeon HD 6870 in Minecraft is 27% more, than GeForce GT 640.
high / 1080p
−
18−20
ultra / 1080p
12−14
16−18
low / 720p
27−30
45−50
medium / 1080p
14−16
21−24
The average gaming FPS of Radeon HD 6870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 61% more, than GeForce GT 640.
high / 1080p
6−7
12−14
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
7−8
20−22
medium / 1080p
−
12−14
The average gaming FPS of Radeon HD 6870 in Red Dead Redemption 2 is 133% more, than GeForce GT 640.
low / 768p
14−16
40−45
medium / 768p
10−11
24−27
high / 1080p
5−6
14−16
ultra / 1080p
4−5
8−9
4K / 2160p
0−1
7−8
The average gaming FPS of Radeon HD 6870 in The Witcher 3: Wild Hunt is 175% more, than GeForce GT 640.
low / 768p
70−75
95−100
medium / 768p
35−40
55−60
ultra / 1080p
16−18
27−30
high / 768p
30−35
45−50
The average gaming FPS of Radeon HD 6870 in World of Tanks is 46% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon HD 6870
Architecture
Kepler
Terascale 2
Code name
GK107
RV940 Barts
Type
Desktop
Desktop
Release date
5 June 2012
22 October 2010
Pipelines
384
1120
Core clock speed
902 MHz
Boost Clock
900 MHz
Transistor count
1,270 million
1,700 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
50.40
Floating-point performance
692.7 gflops
2,016.0 gflops
Length
145 mm
220 mm
Memory bus width
128 Bit
256 Bit
Memory clock speed
1782 MHz
1050 MHz
Memory bandwidth
28.51 GB/s
134.4 GB/s
Shared memory
-
DirectX
12 (11_0)
Shader Model
5.1
5.0
OpenGL
4.6
4.4
OpenCL
1.2
1.2
Vulkan
1.1.126
CUDA
3.0
Bus support
PCIe 2.0 x16
HDMI
+
Bitcoin / BTC (SHA256)
24 Mh/s
213 Mh/s
Eyefinity
+
Design
reference
CrossFire
+
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