GeForce GT 640 vs Radeon HD 6970M Crossfire
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and Radeon HD 6970M Crossfire. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640 and Radeon HD 6970M Crossfire. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
Radeon HD 6970M Crossfire is a Laptop Graphics Card
Note: Radeon HD 6970M Crossfire 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 Radeon HD 6970M Crossfire here:
Main Specs
GeForce GT 640
Radeon HD 6970M Crossfire
Power consumption (TDP)
65 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
2x2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GT 640 and Radeon HD 6970M Crossfire have maximum RAM of 2 GB.
GeForce GT 640 is used in Desktops, and Radeon HD 6970M Crossfire - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 6970M Crossfire - with Terascale 2.
Core clock speed of GeForce GT 640 is 222 MHz higher, than Radeon HD 6970M Crossfire.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon HD 6970M Crossfire - by 40 nm process technology.
Memory clock speed of GeForce GT 640 is 882 MHz higher, than Radeon HD 6970M Crossfire.
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
21−24
ultra / 1080p
1−2
12−14
QHD / 1440p
0−1
7−8
4K / 2160p
−
5−6
low / 720p
14−16
40−45
medium / 1080p
5−6
24−27
The average gaming FPS of Radeon HD 6970M Crossfire in Assassin's Creed Odyssey is 316% more, than GeForce GT 640.
high / 1080p
7−8
30−35
ultra / 1080p
5−6
27−30
QHD / 1440p
0−1
12−14
4K / 2160p
−
8−9
low / 720p
20−22
70−75
medium / 1080p
7−8
35−40
The average gaming FPS of Radeon HD 6970M Crossfire in Battlefield 5 is 320% more, than GeForce GT 640.
low / 768p
50−55
50−55
high / 1080p
35−40
−
QHD / 1440p
0−1
0−1
GeForce GT 640 and Radeon HD 6970M Crossfire have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
230−240
medium / 768p
90−95
200−210
ultra / 1080p
45−50
120−130
QHD / 1440p
24−27
95−100
4K / 2160p
18−20
50−55
high / 768p
65−70
170−180
The average gaming FPS of Radeon HD 6970M Crossfire in Counter-Strike: Global Offensive is 142% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
50−55
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 6970M Crossfire in Cyberpunk 2077 is 21% more, than GeForce GT 640.
low / 768p
70−75
120−130
medium / 768p
50−55
100−110
ultra / 1080p
27−30
80−85
The average gaming FPS of Radeon HD 6970M Crossfire in Dota 2 is 103% more, than GeForce GT 640.
high / 1080p
3−4
24−27
ultra / 1080p
3−4
21−24
QHD / 1440p
−
20−22
4K / 2160p
2−3
8−9
low / 720p
14−16
50−55
medium / 1080p
4−5
27−30
The average gaming FPS of Radeon HD 6970M Crossfire in Far Cry 5 is 440% more, than GeForce GT 640.
high / 1080p
10−12
30−35
ultra / 1080p
5−6
24−27
QHD / 1440p
2−3
16−18
low / 720p
50−55
120−130
medium / 1080p
16−18
70−75
The average gaming FPS of Radeon HD 6970M Crossfire in Fortnite is 217% more, than GeForce GT 640.
high / 1080p
6−7
35−40
ultra / 1080p
−
27−30
QHD / 1440p
4−5
14−16
4K / 2160p
2−3
12−14
low / 720p
21−24
70−75
medium / 1080p
9−10
40−45
The average gaming FPS of Radeon HD 6970M Crossfire in Forza Horizon 4 is 300% more, than GeForce GT 640.
low / 768p
45−50
100−110
medium / 768p
−
95−100
high / 1080p
7−8
40−45
ultra / 1080p
3−4
16−18
QHD / 1440p
0−1
7−8
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 6970M Crossfire in Grand Theft Auto V is 184% more, than GeForce GT 640.
high / 1080p
2−3
12−14
ultra / 1080p
0−1
10−11
QHD / 1440p
−
10−11
4K / 2160p
0−1
3−4
low / 720p
8−9
40−45
medium / 1080p
4−5
18−20
The average gaming FPS of Radeon HD 6970M Crossfire in Metro Exodus is 380% more, than GeForce GT 640.
low / 768p
80−85
120−130
ultra / 1080p
70−75
−
medium / 1080p
−
110−120
The average gaming FPS of Radeon HD 6970M Crossfire in Minecraft is 52% more, than GeForce GT 640.
ultra / 1080p
12−14
14−16
low / 720p
27−30
70−75
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 6970M Crossfire in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than GeForce GT 640.
high / 1080p
6−7
16−18
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
2−3
4K / 2160p
−
1−2
low / 720p
7−8
40−45
medium / 1080p
−
21−24
The average gaming FPS of Radeon HD 6970M Crossfire in Red Dead Redemption 2 is 283% more, than GeForce GT 640.
low / 768p
14−16
75−80
medium / 768p
10−11
45−50
high / 1080p
5−6
24−27
ultra / 1080p
4−5
14−16
4K / 2160p
0−1
8−9
The average gaming FPS of Radeon HD 6970M Crossfire in The Witcher 3: Wild Hunt is 412% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
40−45
high / 768p
30−35
55−60
The average gaming FPS of Radeon HD 6970M Crossfire in World of Tanks is 61% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon HD 6970M Crossfire
Architecture
Kepler
Terascale 2
Code name
GK107
Blackcomb XT
Type
Desktop
Laptop
Release date
5 June 2012
6 January 2011
Pipelines
384
1920
Core clock speed
902 MHz
680 MHz
Transistor count
1,270 million
2x1700 Million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
256 Bit
Memory clock speed
1782 MHz
900 MHz
Memory bandwidth
28.51 GB/s
Shared memory
-
DirectX
12 (11_0)
DirectX 11, Shader 5.0
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.126
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
large
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