GeForce GTX 660M vs Radeon Pro 555X

Aggregate performance score

We've compared Radeon Pro 555X with GeForce GTX 660M, including specs and performance data.

Pro 555X
2018
4 GB GDDR5, 75 Watt
8.38
+124%

Pro 555X outperforms GTX 660M by a whopping 124% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking497700
Place by popularitynot in top-100not in top-100
Power efficiency7.775.20
ArchitectureGCN 4.0 (2016−2020)Kepler (2012−2018)
GPU code namePolaris 21GK107
Market segmentMobile workstationLaptop
Release date16 July 2018 (6 years ago)22 March 2012 (12 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores768384
Core clock speed907 MHz835 MHz
Boost clock speedno data950 MHz
Number of transistors3,000 million1,270 million
Manufacturing process technology14 nm28 nm
Power consumption (TDP)75 Watt50 Watt
Texture fill rate43.5430.40
Floating-point processing power1.393 TFLOPS0.7296 TFLOPS
ROPs1616
TMUs4832

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizelargelarge
Bus supportno dataPCI Express 2.0, PCI Express 3.0
InterfacePCIe 3.0 x8MXM-B (3.0)
Supplementary power connectorsNoneno data
SLI options-+

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR5
Maximum RAM amount4 GB1 GB
Memory bus width128 Bit128bit
Memory clock speed1275 MHz2000 MHz
Memory bandwidth81.6 GB/s64.0 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputsNo outputs
HDMI-+
HDCP-+
Maximum VGA resolutionno dataUp to 2048x1536

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

FreeSync+-
Optimus-+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_0)12 API
Shader Model6.45.1
OpenGL4.64.5
OpenCL2.01.1
Vulkan1.2.1311.1.126
CUDA-+

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pro 555X 8.38
+124%
GTX 660M 3.74

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Pro 555X 3235
+124%
GTX 660M 1442

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Pro 555X 12701
+215%
GTX 660M 4033

GeekBench 5 Vulkan

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.

Pro 555X 13037
+270%
GTX 660M 3524

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p70−75
+119%
32
−119%
Full HD75−80
+121%
34
−121%
1200p85−90
+124%
38
−124%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 12−14
+85.7%
7−8
−85.7%

Full HD
Medium Preset

Assassin's Creed Odyssey 21−24
+90.9%
10−12
−90.9%
Assassin's Creed Valhalla 12−14
+300%
3−4
−300%
Battlefield 5 24−27
+213%
8−9
−213%
Call of Duty: Modern Warfare 16−18
+113%
8−9
−113%
Cyberpunk 2077 12−14
+85.7%
7−8
−85.7%
Far Cry 5 18−20
+138%
8−9
−138%
Far Cry New Dawn 21−24
+130%
10−11
−130%
Forza Horizon 4 55−60
+155%
21−24
−155%
Hitman 3 16−18
+77.8%
9−10
−77.8%
Horizon Zero Dawn 45−50
+84.6%
24−27
−84.6%
Metro Exodus 24−27
+257%
7−8
−257%
Red Dead Redemption 2 21−24
+156%
9−10
−156%
Shadow of the Tomb Raider 27−30
+100%
14−16
−100%
Watch Dogs: Legion 55−60
+38.1%
40−45
−38.1%

Full HD
High Preset

Assassin's Creed Odyssey 21−24
+90.9%
10−12
−90.9%
Assassin's Creed Valhalla 12−14
+300%
3−4
−300%
Battlefield 5 24−27
+213%
8−9
−213%
Call of Duty: Modern Warfare 16−18
+113%
8−9
−113%
Cyberpunk 2077 12−14
+85.7%
7−8
−85.7%
Far Cry 5 18−20
+138%
8−9
−138%
Far Cry New Dawn 21−24
+130%
10−11
−130%
Forza Horizon 4 55−60
+155%
21−24
−155%
Hitman 3 16−18
+77.8%
9−10
−77.8%
Horizon Zero Dawn 45−50
+84.6%
24−27
−84.6%
Metro Exodus 24−27
+257%
7−8
−257%
Red Dead Redemption 2 21−24
+156%
9−10
−156%
Shadow of the Tomb Raider 27−30
+100%
14−16
−100%
The Witcher 3: Wild Hunt 24−27
+60%
14−16
−60%
Watch Dogs: Legion 55−60
+38.1%
40−45
−38.1%

Full HD
Ultra Preset

Assassin's Creed Odyssey 21−24
+90.9%
10−12
−90.9%
Assassin's Creed Valhalla 12−14
+300%
3−4
−300%
Call of Duty: Modern Warfare 16−18
+113%
8−9
−113%
Cyberpunk 2077 12−14
+85.7%
7−8
−85.7%
Far Cry 5 18−20
+138%
8−9
−138%
Forza Horizon 4 55−60
+155%
21−24
−155%
Hitman 3 16−18
+77.8%
9−10
−77.8%
Horizon Zero Dawn 45−50
+84.6%
24−27
−84.6%
Shadow of the Tomb Raider 27−30
+100%
14−16
−100%
The Witcher 3: Wild Hunt 24−27
+60%
14−16
−60%
Watch Dogs: Legion 55−60
+38.1%
40−45
−38.1%

Full HD
Epic Preset

Red Dead Redemption 2 21−24
+156%
9−10
−156%

1440p
High Preset

Battlefield 5 16−18
+129%
7−8
−129%
Far Cry New Dawn 12−14
+117%
6−7
−117%

1440p
Ultra Preset

Assassin's Creed Odyssey 8−9
+167%
3−4
−167%
Assassin's Creed Valhalla 4−5
+300%
1−2
−300%
Call of Duty: Modern Warfare 8−9
+167%
3−4
−167%
Cyberpunk 2077 4−5
+100%
2−3
−100%
Far Cry 5 10−11
+150%
4−5
−150%
Forza Horizon 4 30−35
+1033%
3−4
−1033%
Hitman 3 12−14
+50%
8−9
−50%
Horizon Zero Dawn 18−20
+100%
9−10
−100%
Metro Exodus 10−12
+175%
4−5
−175%
Shadow of the Tomb Raider 8−9
+167%
3−4
−167%
The Witcher 3: Wild Hunt 8−9
+167%
3−4
−167%
Watch Dogs: Legion 50−55
+130%
21−24
−130%

1440p
Epic Preset

Red Dead Redemption 2 14−16
+100%
7−8
−100%

4K
High Preset

Battlefield 5 7−8
+250%
2−3
−250%
Far Cry New Dawn 6−7
+200%
2−3
−200%
Hitman 3 4−5
+300%
1−2
−300%
Horizon Zero Dawn 30−35
+129%
14−16
−129%
Metro Exodus 6−7 0−1
The Witcher 3: Wild Hunt 5−6
+150%
2−3
−150%

4K
Ultra Preset

Assassin's Creed Odyssey 5−6
+66.7%
3−4
−66.7%
Assassin's Creed Valhalla 4−5
+100%
2−3
−100%
Call of Duty: Modern Warfare 4−5
+300%
1−2
−300%
Cyberpunk 2077 1−2 0−1
Far Cry 5 4−5
+100%
2−3
−100%
Forza Horizon 4 10−11
+400%
2−3
−400%
Shadow of the Tomb Raider 4−5
+300%
1−2
−300%
Watch Dogs: Legion 3−4
+200%
1−2
−200%

4K
Epic Preset

Red Dead Redemption 2 8−9
+60%
5−6
−60%

This is how Pro 555X and GTX 660M compete in popular games:

  • Pro 555X is 119% faster in 900p
  • Pro 555X is 121% faster in 1080p
  • Pro 555X is 124% faster in 1200p

Here's the range of performance differences observed across popular games:

  • in Forza Horizon 4, with 1440p resolution and the Ultra Preset, the Pro 555X is 1033% faster.

All in all, in popular games:

  • Without exception, Pro 555X surpassed GTX 660M in all 63 of our tests.

Pros & cons summary


Performance score 8.38 3.74
Recency 16 July 2018 22 March 2012
Maximum RAM amount 4 GB 1 GB
Chip lithography 14 nm 28 nm
Power consumption (TDP) 75 Watt 50 Watt

Pro 555X has a 124.1% higher aggregate performance score, an age advantage of 6 years, a 300% higher maximum VRAM amount, and a 100% more advanced lithography process.

GTX 660M, on the other hand, has 50% lower power consumption.

The Radeon Pro 555X is our recommended choice as it beats the GeForce GTX 660M in performance tests.

Be aware that Radeon Pro 555X is a mobile workstation card while GeForce GTX 660M is a mobile workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

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AMD Radeon Pro 555X
Radeon Pro 555X
NVIDIA GeForce GTX 660M
GeForce GTX 660M

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.8 165 votes

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Questions & comments

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