GeForce GTX 660 vs Radeon Pro 555X
When comparing GeForce GTX 660 and Radeon Pro 555X, 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 GTX 660 and Radeon Pro 555X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon Pro 555X is a Laptop Graphics Card
Note: Radeon Pro 555X 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 Pro 555X here:
Main Specs
GeForce GTX 660
Radeon Pro 555X
Power consumption (TDP)
140 Watt
75 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
One 6-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GTX 660 has 86% more power consumption, than Radeon Pro 555X.
GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon Pro 555X uses PCIe 3.0 x8 interface.
GeForce GTX 660 and Radeon Pro 555X have maximum RAM of 2 GB.
GeForce GTX 660 is used in Desktops, and Radeon Pro 555X - in Mobile workstations.
GeForce GTX 660 is build with Kepler architecture, and Radeon Pro 555X - with Polaris.
Core clock speed of GeForce GTX 660 is 125 MHz higher, than Radeon Pro 555X.
GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
Memory clock speed of Radeon Pro 555X is 5074 MHz higher, than GeForce GTX 660.
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
20−22
16−18
ultra / 1080p
12−14
10−11
QHD / 1440p
6−7
4−5
4K / 2160p
5−6
4−5
low / 720p
40−45
30−35
medium / 1080p
24−27
21−24
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 26% more, than Radeon Pro 555X.
high / 1080p
30−35
24−27
ultra / 1080p
27−30
21−24
QHD / 1440p
10−12
10−11
4K / 2160p
8−9
6−7
low / 720p
65−70
55−60
medium / 1080p
35−40
30−33
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 20% more, than Radeon Pro 555X.
low / 768p
50−55
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660 in Call of Duty: Warzone is 10% more, than Radeon Pro 555X.
low / 768p
230−240
220−230
medium / 768p
200−210
190−200
ultra / 1080p
120−130
100−110
QHD / 1440p
90−95
60−65
4K / 2160p
50−55
30−35
high / 768p
160−170
150−160
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 12% more, than Radeon Pro 555X.
low / 768p
60−65
55−60
ultra / 1080p
50−55
40−45
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 in Cyberpunk 2077 is 16% more, than Radeon Pro 555X.
low / 768p
120−130
110−120
medium / 768p
100−110
95−100
ultra / 1080p
80−85
65−70
The average gaming FPS of GeForce GTX 660 in Dota 2 is 11% more, than Radeon Pro 555X.
high / 1080p
24−27
20−22
ultra / 1080p
21−24
18−20
QHD / 1440p
18−20
16−18
4K / 2160p
8−9
6−7
low / 720p
50−55
40−45
medium / 1080p
27−30
21−24
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 23% more, than Radeon Pro 555X.
high / 1080p
30−35
27−30
ultra / 1080p
24−27
21−24
QHD / 1440p
16−18
16−18
low / 720p
120−130
100−110
medium / 1080p
70−75
55−60
The average gaming FPS of GeForce GTX 660 in Fortnite is 17% more, than Radeon Pro 555X.
high / 1080p
30−35
27−30
ultra / 1080p
24−27
21−24
QHD / 1440p
14−16
10−11
4K / 2160p
12−14
10−11
low / 720p
65−70
55−60
medium / 1080p
35−40
30−35
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 14% more, than Radeon Pro 555X.
low / 768p
100−110
90−95
medium / 768p
90−95
80−85
high / 1080p
40−45
30−35
ultra / 1080p
16−18
12−14
QHD / 1440p
7−8
4−5
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 15% more, than Radeon Pro 555X.
high / 1080p
12−14
10−11
ultra / 1080p
10−11
8−9
QHD / 1440p
10−11
−
4K / 2160p
3−4
3−4
low / 720p
40−45
30−35
medium / 1080p
18−20
14−16
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 21% more, than Radeon Pro 555X.
low / 768p
120−130
110−120
medium / 1080p
110−120
100−110
The average gaming FPS of GeForce GTX 660 in Minecraft is 9% more, than Radeon Pro 555X.
high / 1080p
−
24−27
ultra / 1080p
14−16
18−20
low / 720p
70−75
60−65
medium / 1080p
18−20
24−27
GeForce GTX 660 and Radeon Pro 555X have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
14−16
14−16
ultra / 1080p
10−11
10−11
QHD / 1440p
1−2
0−1
4K / 2160p
1−2
−
low / 720p
35−40
30−35
medium / 1080p
21−24
18−20
The average gaming FPS of GeForce GTX 660 in Red Dead Redemption 2 is 10% more, than Radeon Pro 555X.
low / 768p
70−75
60−65
medium / 768p
45−50
35−40
high / 1080p
24−27
21−24
ultra / 1080p
14−16
12−14
4K / 2160p
8−9
8−9
The average gaming FPS of GeForce GTX 660 in The Witcher 3: Wild Hunt is 17% more, than Radeon Pro 555X.
low / 768p
90−95
100−110
medium / 768p
60−65
60−65
ultra / 1080p
40−45
35−40
high / 768p
55−60
55−60
The average gaming FPS of Radeon Pro 555X in World of Tanks is 3% more, than GeForce GTX 660.
Full Specs
GeForce GTX 660
Radeon Pro 555X
Architecture
Kepler
Polaris
Code name
GK106
Polaris 21
Type
Desktop
Mobile workstation
Release date
6 September 2012
5 June 2017
Pipelines
960
768
Core clock speed
980 MHz
855 MHz
Boost Clock
1033 MHz
Transistor count
2,540 million
3,000 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
78.4 billion/sec
43.54
Floating-point performance
1,981 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
128 Bit
Memory clock speed
6.0 GB/s
5080 MHz
Memory bandwidth
144.2 GB/s
81.6 GB/s
Shared memory
-
DirectX
12 (11_0)
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.3
4.6
OpenCL
1.2
2.0
Vulkan
1.1.126
1.2.131
CUDA
+
FreeSync
+
CUDA cores
960
Bus support
PCI Express 3.0
Height
4.376" (11.1 cm)
SLI options
+
Multi monitor support
4 displays
HDMI
+
HDCP
+
Maximum VGA resolution
2048x1536
Audio input for HDMI
Internal
3D Blu-Ray
+
3D Gaming
+
3D Vision
+
Bitcoin / BTC (SHA256)
66 Mh/s
Laptop size
large
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