Radeon HD 4870 vs Radeon HD 8790M
When comparing Radeon HD 4870 and Radeon HD 8790M, 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 Radeon HD 4870 and Radeon HD 8790M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
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 4870
Radeon HD 8790M
Power consumption (TDP)
150 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 4870 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 4870.
Radeon HD 4870 is used in Desktops, and Radeon HD 8790M - in Laptops.
Radeon HD 4870 is build with TeraScale architecture, and Radeon HD 8790M - with GCN.
Core clock speed of Radeon HD 8790M is 100 MHz higher, than Radeon HD 4870.
Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 8790M - by 28 nm process technology.
Memory clock speed of Radeon HD 8790M is 900 MHz higher, than Radeon HD 4870.
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
3−4
3−4
ultra / 1080p
1−2
1−2
QHD / 1440p
0−1
0−1
low / 720p
14−16
14−16
medium / 1080p
6−7
6−7
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
8−9
8−9
ultra / 1080p
6−7
6−7
QHD / 1440p
0−1
0−1
low / 720p
21−24
21−24
medium / 1080p
9−10
9−10
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Battlefield 5.
low / 768p
45−50
45−50
high / 1080p
40−45
40−45
QHD / 1440p
0−1
0−1
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
120−130
medium / 768p
100−110
100−110
ultra / 1080p
45−50
50−55
QHD / 1440p
24−27
24−27
high / 768p
75−80
75−80
The average gaming FPS of Radeon HD 8790M in Counter-Strike: Global Offensive is 1% more, than Radeon HD 4870.
low / 768p
70−75
70−75
ultra / 1080p
21−24
21−24
medium / 1080p
40−45
40−45
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Cyberpunk 2077.
low / 768p
75−80
75−80
medium / 768p
55−60
55−60
ultra / 1080p
30−35
30−35
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Dota 2.
high / 1080p
4−5
4−5
ultra / 1080p
4−5
4−5
4K / 2160p
1−2
1−2
low / 720p
14−16
14−16
medium / 1080p
6−7
6−7
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Far Cry 5.
high / 1080p
12−14
12−14
ultra / 1080p
7−8
7−8
QHD / 1440p
4−5
4−5
low / 720p
60−65
60−65
medium / 1080p
18−20
18−20
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Fortnite.
high / 1080p
7−8
8−9
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
21−24
21−24
medium / 1080p
10−11
10−11
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Forza Horizon 4.
low / 768p
50−55
50−55
high / 1080p
10−11
10−11
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
medium / 720p
40−45
40−45
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Grand Theft Auto V.
high / 1080p
2−3
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
9−10
9−10
medium / 1080p
4−5
4−5
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Metro Exodus.
low / 768p
85−90
85−90
high / 1080p
70−75
70−75
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Minecraft.
ultra / 1080p
12−14
12−14
low / 720p
30−35
30−35
medium / 1080p
14−16
14−16
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
7−8
7−8
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
8−9
8−9
medium / 1080p
8−9
8−9
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in Red Dead Redemption 2.
low / 768p
18−20
20−22
medium / 768p
12−14
12−14
high / 1080p
7−8
7−8
ultra / 1080p
5−6
5−6
4K / 2160p
1−2
1−2
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
75−80
75−80
medium / 768p
40−45
40−45
ultra / 1080p
18−20
18−20
high / 768p
30−35
30−35
Radeon HD 4870 and Radeon HD 8790M have the same average FPS in World of Tanks.
Full Specs
Radeon HD 4870
Radeon HD 8790M
Architecture
TeraScale
GCN
Code name
RV770
Mars XTX
Type
Desktop
Laptop
Release date
25 June 2008
16 November 2012
Pipelines
800
384
Core clock speed
750 MHz
850 MHz
Boost Clock
900 MHz
Transistor count
956 million
950 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
30.00
21.60
Floating-point performance
1,200.0 gflops
691.2 gflops
Length
250 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
3600 MHz
4500 MHz
Memory bandwidth
115.2 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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