Radeon HD 4850 vs Radeon RX 640
If you are going to buy a new graphics card and are choosing between Radeon HD 4850 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 4850 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 4850
Radeon RX 640
Power consumption (TDP)
110 Watt
50 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
4 GB
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 4850 has 120% more power consumption, than Radeon RX 640.
Radeon HD 4850 is connected by PCIe 2.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon HD 4850 has 508 GB more memory, than Radeon RX 640.
Radeon HD 4850 is used in Desktops, and Radeon RX 640 - in Laptops.
Radeon HD 4850 is build with Terascale 1 architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 593 MHz higher, than Radeon HD 4850.
Radeon HD 4850 is manufactured by 55 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 5007 MHz higher, than Radeon HD 4850.
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
1−2
5−6
ultra / 1080p
0−1
3−4
QHD / 1440p
0−1
2−3
low / 720p
12−14
16−18
medium / 1080p
3−4
7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 66% more, than Radeon HD 4850.
high / 1080p
6−7
10−12
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
6−7
10−12
The average gaming FPS of Radeon RX 640 in Battlefield 5 is 75% more, than Radeon HD 4850.
low / 768p
45−50
45−50
high / 1080p
40−45
40−45
QHD / 1440p
0−1
0−1
Radeon HD 4850 and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
130−140
medium / 768p
95−100
100−110
ultra / 1080p
40−45
50−55
QHD / 1440p
21−24
27−30
4K / 2160p
10−11
12−14
high / 768p
65−70
80−85
The average gaming FPS of Radeon RX 640 in Counter-Strike: Global Offensive is 15% more, than Radeon HD 4850.
low / 768p
85−90
50−55
ultra / 1080p
18−20
18−20
medium / 1080p
40−45
45−50
The average gaming FPS of Radeon HD 4850 in Cyberpunk 2077 is 25% more, than Radeon RX 640.
low / 768p
80−85
80−85
medium / 768p
55−60
55−60
ultra / 1080p
27−30
30−35
The average gaming FPS of Radeon RX 640 in Dota 2 is 1% more, than Radeon HD 4850.
high / 1080p
2−3
7−8
ultra / 1080p
2−3
5−6
4K / 2160p
1−2
5−6
low / 720p
10−12
18−20
medium / 1080p
3−4
8−9
The average gaming FPS of Radeon RX 640 in Far Cry 5 is 125% more, than Radeon HD 4850.
high / 1080p
10−11
7−8
ultra / 1080p
5−6
0−1
QHD / 1440p
1−2
0−1
low / 720p
50−55
60−65
medium / 1080p
12−14
18−20
The average gaming FPS of Radeon RX 640 in Fortnite is 16% more, than Radeon HD 4850.
high / 1080p
5−6
10−11
QHD / 1440p
3−4
−
4K / 2160p
2−3
8−9
low / 720p
16−18
24−27
medium / 1080p
7−8
12−14
The average gaming FPS of Radeon RX 640 in Forza Horizon 4 is 75% more, than Radeon HD 4850.
low / 768p
45−50
50−55
medium / 768p
35−40
−
high / 1080p
6−7
10−12
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
−
medium / 720p
−
45−50
The average gaming FPS of Radeon RX 640 in Grand Theft Auto V is 21% more, than Radeon HD 4850.
high / 1080p
1−2
3−4
ultra / 1080p
0−1
1−2
low / 720p
5−6
10−11
medium / 1080p
3−4
5−6
The average gaming FPS of Radeon RX 640 in Metro Exodus is 100% more, than Radeon HD 4850.
low / 768p
95−100
90−95
high / 1080p
60−65
−
ultra / 1080p
−
80−85
medium / 1080p
85−90
−
The average gaming FPS of Radeon HD 4850 in Minecraft is 5% more, than Radeon RX 640.
high / 1080p
−
6−7
ultra / 1080p
12−14
2−3
4K / 2160p
−
0−1
low / 720p
27−30
27−30
medium / 1080p
14−16
10−11
The average gaming FPS of Radeon HD 4850 in PLAYERUNKNOWN'S BATTLEGROUNDS is 38% more, than Radeon RX 640.
low / 720p
5−6
10−12
medium / 1080p
−
9−10
The average gaming FPS of Radeon RX 640 in Red Dead Redemption 2 is 120% more, than Radeon HD 4850.
low / 768p
12−14
21−24
medium / 768p
9−10
14−16
high / 1080p
5−6
6−7
ultra / 1080p
4−5
4−5
4K / 2160p
1−2
3−4
The average gaming FPS of Radeon RX 640 in The Witcher 3: Wild Hunt is 66% more, than Radeon HD 4850.
low / 768p
65−70
75−80
medium / 768p
35−40
40−45
ultra / 1080p
14−16
18−20
high / 768p
27−30
35−40
The average gaming FPS of Radeon RX 640 in World of Tanks is 18% more, than Radeon HD 4850.
Full Specs
Radeon HD 4850
Radeon RX 640
Architecture
Terascale 1
Polaris
Code name
RV770
Polaris 12
Type
Desktop
Laptop
Release date
25 June 2008
12 August 2019
Pipelines
800
640
Core clock speed
625 MHz
1218 MHz
Boost Clock
1218 MHz
Transistor count
956 million
2,200 million
Manufacturing process technology
55 nm
14 nm
Texture fill rate
25.00
38.98
Floating-point performance
1,000.0 gflops
Length
246 mm
Memory bus width
256 Bit
64 Bit
Memory clock speed
993 MHz
6000 MHz
Memory bandwidth
63.55 GB/s
112.0 GB/s
Shared memory
-
DirectX
10.1 (10_1)
12 (12_0)
Shader Model
4.1
6.4
OpenGL
3.3
4.6
OpenCL
1.1
2.0
Vulkan
N/A
1.2.131
FreeSync
+
Laptop size
large
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