GeForce GT 640 vs Radeon HD 6770
When comparing GeForce GT 640 and Radeon HD 6770, 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 Radeon HD 6770 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Main Specs
GeForce GT 640
Radeon HD 6770
Power consumption (TDP)
65 Watt
108 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 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
Check Price
Check Price
Radeon HD 6770 has 66% more power consumption, than GeForce GT 640.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon HD 6770 uses PCIe 2.0 x16 interface.
GeForce GT 640 has 1 GB more memory, than Radeon HD 6770.
Both cards are used in Desktops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 6770 - with TeraScale 2.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon HD 6770 - by 40 nm process technology.
Radeon HD 6770 is 53 mm longer, than GeForce GT 640.
Memory clock speed of GeForce GT 640 is 732 MHz higher, than Radeon HD 6770.
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
3−4
ultra / 1080p
1−2
1−2
QHD / 1440p
0−1
0−1
low / 720p
14−16
14−16
medium / 1080p
5−6
5−6
GeForce GT 640 and Radeon HD 6770 have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
7−8
7−8
ultra / 1080p
5−6
6−7
QHD / 1440p
0−1
0−1
low / 720p
20−22
20−22
medium / 1080p
7−8
8−9
GeForce GT 640 and Radeon HD 6770 have the same average FPS in Battlefield 5.
low / 768p
50−55
45−50
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
GeForce GT 640 and Radeon HD 6770 have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
120−130
medium / 768p
90−95
95−100
ultra / 1080p
45−50
45−50
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
−
high / 768p
65−70
70−75
The average gaming FPS of Radeon HD 6770 in Counter-Strike: Global Offensive is 5% more, than GeForce GT 640.
low / 768p
70−75
70−75
ultra / 1080p
21−24
20−22
medium / 1080p
45−50
40−45
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 4% more, than Radeon HD 6770.
low / 768p
70−75
75−80
medium / 768p
50−55
55−60
ultra / 1080p
27−30
27−30
The average gaming FPS of Radeon HD 6770 in Dota 2 is 5% more, than GeForce GT 640.
high / 1080p
3−4
4−5
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
1−2
low / 720p
14−16
14−16
medium / 1080p
4−5
5−6
The average gaming FPS of Radeon HD 6770 in Far Cry 5 is 20% more, than GeForce GT 640.
high / 1080p
10−12
12−14
ultra / 1080p
5−6
7−8
QHD / 1440p
2−3
4−5
low / 720p
50−55
55−60
medium / 1080p
16−18
16−18
The average gaming FPS of Radeon HD 6770 in Fortnite is 11% more, than GeForce GT 640.
high / 1080p
6−7
7−8
ultra / 1080p
−
6−7
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
21−24
medium / 1080p
9−10
9−10
The average gaming FPS of Radeon HD 6770 in Forza Horizon 4 is 8% more, than GeForce GT 640.
low / 768p
45−50
45−50
high / 1080p
7−8
9−10
ultra / 1080p
3−4
4−5
QHD / 1440p
0−1
0−1
medium / 720p
40−45
40−45
The average gaming FPS of Radeon HD 6770 in Grand Theft Auto V is 4% more, than GeForce GT 640.
high / 1080p
2−3
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
8−9
medium / 1080p
4−5
4−5
GeForce GT 640 and Radeon HD 6770 have the same average FPS in Metro Exodus.
low / 768p
80−85
85−90
high / 1080p
−
65−70
ultra / 1080p
70−75
−
The average gaming FPS of Radeon HD 6770 in Minecraft is 6% more, than GeForce GT 640.
ultra / 1080p
12−14
12−14
low / 720p
27−30
27−30
medium / 1080p
14−16
14−16
GeForce GT 640 and Radeon HD 6770 have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
6−7
6−7
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
7−8
7−8
GeForce GT 640 and Radeon HD 6770 have the same average FPS in Red Dead Redemption 2.
low / 768p
14−16
18−20
medium / 768p
10−11
12−14
high / 1080p
5−6
6−7
ultra / 1080p
4−5
4−5
4K / 2160p
0−1
1−2
The average gaming FPS of Radeon HD 6770 in The Witcher 3: Wild Hunt is 25% more, than GeForce GT 640.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
16−18
high / 768p
30−35
30−35
GeForce GT 640 and Radeon HD 6770 have the same average FPS in World of Tanks.
Full Specs
GeForce GT 640
Radeon HD 6770
Architecture
Kepler
TeraScale 2
Code name
GK107
Juniper
Type
Desktop
Desktop
Release date
5 June 2012
21 January 2011
Pipelines
384
800
Core clock speed
902 MHz
Boost Clock
900 MHz
Transistor count
1,270 million
1,040 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
34.00
Floating-point performance
692.7 gflops
1,360.0 gflops
Length
145 mm
198 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
1050 MHz
Memory bandwidth
28.51 GB/s
76.8 GB/s
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
118 Mh/s
Eyefinity
+
Design
reference
CrossFire
+
Check Price
Check Price
