Radeon HD 4890 vs Radeon HD 8790M
When choosing between Radeon HD 4890 and Radeon HD 8790M, 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 Radeon HD 4890 and Radeon HD 8790M.
Radeon HD 8790M is a Laptop Graphics Card
Note: Radeon HD 8790M 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 8790M here:
Main Specs
Radeon HD 4890
Radeon HD 8790M
Power consumption (TDP)
190 Watt
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
2x DVI, 1x S-Video
No outputs
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Radeon HD 4890 is connected by PCIe 2.0 x16, and Radeon HD 8790M uses MXM-A (3.0) interface.
Radeon HD 8790M has 1 GB more memory, than Radeon HD 4890.
Radeon HD 4890 is used in Desktops, and Radeon HD 8790M - in Laptops.
Radeon HD 4890 is build with TeraScale architecture, and Radeon HD 8790M - with GCN.
Both graphics cards have the same core clock speed.
Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon HD 8790M - by 28 nm process technology.
Memory clock speed of Radeon HD 8790M is 600 MHz higher, than Radeon HD 4890.
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
7−8
3−4
ultra / 1080p
4−5
1−2
QHD / 1440p
0−1
0−1
low / 720p
16−18
14−16
medium / 1080p
8−9
6−7
The average gaming FPS of Radeon HD 4890 in Assassin's Creed Odyssey is 50% more, than Radeon HD 8790M.
high / 1080p
12−14
8−9
ultra / 1080p
10−11
6−7
QHD / 1440p
0−1
0−1
low / 720p
24−27
21−24
medium / 1080p
12−14
9−10
The average gaming FPS of Radeon HD 4890 in Battlefield 5 is 36% more, than Radeon HD 8790M.
low / 768p
45−50
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 4890 in Call of Duty: Warzone is 4% more, than Radeon HD 8790M.
low / 768p
140−150
120−130
medium / 768p
110−120
100−110
ultra / 1080p
55−60
50−55
QHD / 1440p
30−33
24−27
4K / 2160p
27−30
−
high / 768p
80−85
75−80
The average gaming FPS of Radeon HD 4890 in Counter-Strike: Global Offensive is 11% more, than Radeon HD 8790M.
low / 768p
55−60
70−75
ultra / 1080p
20−22
21−24
medium / 1080p
45−50
40−45
The average gaming FPS of Radeon HD 8790M in Cyberpunk 2077 is 7% more, than Radeon HD 4890.
low / 768p
80−85
75−80
medium / 768p
60−65
55−60
ultra / 1080p
35−40
30−35
The average gaming FPS of Radeon HD 4890 in Dota 2 is 9% more, than Radeon HD 8790M.
high / 1080p
8−9
4−5
ultra / 1080p
8−9
4−5
4K / 2160p
3−4
1−2
low / 720p
18−20
14−16
medium / 1080p
9−10
6−7
The average gaming FPS of Radeon HD 4890 in Far Cry 5 is 50% more, than Radeon HD 8790M.
high / 1080p
14−16
12−14
ultra / 1080p
10−11
7−8
QHD / 1440p
−
4−5
low / 720p
60−65
60−65
medium / 1080p
24−27
18−20
The average gaming FPS of Radeon HD 4890 in Fortnite is 12% more, than Radeon HD 8790M.
high / 1080p
12−14
8−9
ultra / 1080p
10−12
7−8
QHD / 1440p
1−2
0−1
low / 720p
27−30
21−24
medium / 1080p
14−16
10−11
The average gaming FPS of Radeon HD 4890 in Forza Horizon 4 is 33% more, than Radeon HD 8790M.
low / 768p
50−55
50−55
medium / 768p
45−50
−
high / 1080p
12−14
10−11
ultra / 1080p
6−7
4−5
QHD / 1440p
0−1
0−1
medium / 720p
−
40−45
The average gaming FPS of Radeon HD 4890 in Grand Theft Auto V is 9% more, than Radeon HD 8790M.
high / 1080p
5−6
2−3
ultra / 1080p
3−4
0−1
4K / 2160p
0−1
0−1
low / 720p
12−14
9−10
medium / 1080p
6−7
4−5
The average gaming FPS of Radeon HD 4890 in Metro Exodus is 60% more, than Radeon HD 8790M.
low / 768p
95−100
85−90
high / 1080p
90−95
70−75
ultra / 1080p
80−85
−
medium / 1080p
90−95
−
The average gaming FPS of Radeon HD 4890 in Minecraft is 18% more, than Radeon HD 8790M.
high / 1080p
16−18
−
ultra / 1080p
14−16
12−14
low / 720p
30−35
30−35
medium / 1080p
18−20
14−16
The average gaming FPS of Radeon HD 4890 in PLAYERUNKNOWN'S BATTLEGROUNDS is 10% more, than Radeon HD 8790M.
high / 1080p
−
7−8
ultra / 1080p
7−8
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
8−9
medium / 1080p
10−12
8−9
The average gaming FPS of Radeon HD 4890 in Red Dead Redemption 2 is 42% more, than Radeon HD 8790M.
low / 768p
24−27
20−22
medium / 768p
16−18
12−14
high / 1080p
9−10
7−8
ultra / 1080p
6−7
5−6
4K / 2160p
6−7
1−2
The average gaming FPS of Radeon HD 4890 in The Witcher 3: Wild Hunt is 44% more, than Radeon HD 8790M.
low / 768p
85−90
75−80
medium / 768p
45−50
40−45
ultra / 1080p
20−22
18−20
high / 768p
35−40
30−35
The average gaming FPS of Radeon HD 4890 in World of Tanks is 14% more, than Radeon HD 8790M.
Full Specs
Radeon HD 4890
Radeon HD 8790M
Architecture
TeraScale
GCN
Code name
RV790
Mars XTX
Type
Desktop
Laptop
Release date
2 April 2009
16 November 2012
Pipelines
800
384
Core clock speed
850 MHz
850 MHz
Boost Clock
900 MHz
Transistor count
959 million
950 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
34.00
21.60
Floating-point performance
1,360.0 gflops
691.2 gflops
Length
241 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
3900 MHz
4500 MHz
Memory bandwidth
124.8 GB/s
64 GB/s
Shared memory
-
DirectX
10.1 (10_1)
12 (11_1)
Shader Model
4.1
5.1
OpenGL
3.3
4.6
OpenCL
1.1
1.2
Vulkan
N/A
1.2.131
Bitcoin / BTC (SHA256)
80 Mh/s
Laptop size
medium sized
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