Radeon HD 7770 vs Radeon RX 640
If you are going to buy a new graphics card and are choosing between Radeon HD 7770 and Radeon RX 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 7770 stacks up against Radeon RX 640, check out specs charts below.
Radeon RX 640 is a Laptop Graphics Card
Note: Radeon RX 640 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 RX 640 here:
Main Specs
Radeon HD 7770
Radeon RX 640
Power consumption (TDP)
50 Watt
Interface
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon RX 640 has 2 GB more memory, than Radeon HD 7770.
Radeon HD 7770 is used in Desktops, and Radeon RX 640 - in Laptops.
Radeon HD 7770 is build with GCN architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 218 MHz higher, than Radeon HD 7770.
Radeon HD 7770 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 1500 MHz higher, than Radeon HD 7770.
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
10−11
5−6
ultra / 1080p
6−7
3−4
QHD / 1440p
1−2
2−3
low / 720p
24−27
16−18
medium / 1080p
12−14
7−8
The average gaming FPS of Radeon HD 7770 in Assassin's Creed Odyssey is 57% more, than Radeon RX 640.
high / 1080p
16−18
10−12
ultra / 1080p
14−16
8−9
QHD / 1440p
1−2
0−1
low / 720p
35−40
24−27
medium / 1080p
18−20
10−12
The average gaming FPS of Radeon HD 7770 in Battlefield 5 is 57% more, than Radeon RX 640.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
Radeon HD 7770 and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p
170−180
130−140
medium / 768p
140−150
100−110
ultra / 1080p
75−80
50−55
QHD / 1440p
40−45
27−30
4K / 2160p
30−33
12−14
high / 768p
110−120
80−85
The average gaming FPS of Radeon HD 7770 in Counter-Strike: Global Offensive is 40% more, than Radeon RX 640.
low / 768p
55−60
50−55
ultra / 1080p
27−30
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 7770 in Cyberpunk 2077 is 12% more, than Radeon RX 640.
low / 768p
95−100
80−85
medium / 768p
75−80
55−60
ultra / 1080p
45−50
30−35
The average gaming FPS of Radeon HD 7770 in Dota 2 is 29% more, than Radeon RX 640.
high / 1080p
12−14
7−8
ultra / 1080p
10−12
5−6
4K / 2160p
5−6
5−6
low / 720p
27−30
18−20
medium / 1080p
12−14
8−9
The average gaming FPS of Radeon HD 7770 in Far Cry 5 is 55% more, than Radeon RX 640.
high / 1080p
18−20
7−8
ultra / 1080p
14−16
0−1
QHD / 1440p
−
0−1
low / 720p
80−85
60−65
medium / 1080p
35−40
18−20
The average gaming FPS of Radeon HD 7770 in Fortnite is 58% more, than Radeon RX 640.
high / 1080p
18−20
10−11
ultra / 1080p
14−16
−
QHD / 1440p
5−6
−
4K / 2160p
−
8−9
low / 720p
35−40
24−27
medium / 1080p
21−24
12−14
The average gaming FPS of Radeon HD 7770 in Forza Horizon 4 is 62% more, than Radeon RX 640.
low / 768p
65−70
50−55
medium / 768p
60−65
−
high / 1080p
21−24
10−12
ultra / 1080p
9−10
5−6
QHD / 1440p
0−1
−
medium / 720p
−
45−50
The average gaming FPS of Radeon HD 7770 in Grand Theft Auto V is 43% more, than Radeon RX 640.
high / 1080p
7−8
3−4
ultra / 1080p
5−6
1−2
4K / 2160p
1−2
−
low / 720p
20−22
10−11
medium / 1080p
9−10
5−6
The average gaming FPS of Radeon HD 7770 in Metro Exodus is 100% more, than Radeon RX 640.
low / 768p
100−110
90−95
ultra / 1080p
90−95
80−85
medium / 1080p
100−105
−
The average gaming FPS of Radeon HD 7770 in Minecraft is 12% more, than Radeon RX 640.
high / 1080p
18−20
6−7
ultra / 1080p
16−18
2−3
4K / 2160p
−
0−1
low / 720p
45−50
27−30
medium / 1080p
21−24
10−11
The average gaming FPS of Radeon HD 7770 in PLAYERUNKNOWN'S BATTLEGROUNDS is 116% more, than Radeon RX 640.
high / 1080p
12−14
−
ultra / 1080p
8−9
−
QHD / 1440p
0−1
−
low / 720p
20−22
10−12
medium / 1080p
12−14
9−10
The average gaming FPS of Radeon HD 7770 in Red Dead Redemption 2 is 70% more, than Radeon RX 640.
low / 768p
35−40
21−24
medium / 768p
24−27
14−16
high / 1080p
14−16
6−7
ultra / 1080p
8−9
4−5
4K / 2160p
7−8
3−4
The average gaming FPS of Radeon HD 7770 in The Witcher 3: Wild Hunt is 80% more, than Radeon RX 640.
low / 768p
95−100
75−80
medium / 768p
55−60
40−45
ultra / 1080p
27−30
18−20
high / 768p
45−50
35−40
The average gaming FPS of Radeon HD 7770 in World of Tanks is 29% more, than Radeon RX 640.
Full Specs
Radeon HD 7770
Radeon RX 640
Architecture
GCN
Polaris
Code name
Cape Verde
Polaris 12
Type
Desktop
Laptop
Release date
15 February 2012
12 August 2019
Pipelines
640
640
Core clock speed
1000 MHz
1218 MHz
Boost Clock
1218 MHz
Transistor count
2,200 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
38.98
Memory bus width
128 Bit
64 Bit
Memory clock speed
4500 MHz
6000 MHz
Memory bandwidth
112.0 GB/s
Shared memory
-
-
DirectX
DirectX 11.1, Shader 5.1
12 (12_0)
Shader Model
6.4
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2.131
FreeSync
+
Bitcoin / BTC (SHA256)
156 Mh/s
Laptop size
large
Eyefinity
+
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