Radeon 820M vs GeForce GTX 660M Mac Edition

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520 530 540X 610 610M 660M 680M 820M 840M 860M 880M 890M

Aggregate performance score

We've compared GeForce GTX 660M Mac Edition and Radeon 820M, covering specs and all relevant benchmarks.

GTX 660M Mac Edition
2013
512 MB GDDR5, 50 Watt
1.47

820M outperforms 660M Mac Edition by a whopping 247% based on our aggregate benchmark results.

Contents

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GTX 660M Mac Edition GTX 660M Mac Edition
Radeon 820M Radeon 820M

Primary details

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

Place in the ranking1033676
Place by popularitynot in top-100not in top-100
Power efficiency2.26no data
ArchitectureKepler (2012−2018)RDNA 3.5 (2024−2025)
GPU code nameGK107Krackan Point
Market segmentLaptopLaptop
Release date1 April 2013 (13 years ago)March 2025 (1 year 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 cores384128
Core clock speed950 MHz400 MHz
Boost clock speedno data2800 MHz
Number of transistors1,270 millionno data
Manufacturing process technology28 nm4 nm
Power consumption (TDP)50 Watt15 Watt
Texture fill rate30.4022.40
Floating-point processing power0.7296 TFLOPS0.7168 TFLOPS
ROPs164
TMUs328
Ray Tracing Coresno data2
L0 Cacheno data32 KB
L1 Cache32 KB32 KB
L2 Cache256 KB1024 KB

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 sizeno datamedium sized
InterfaceMXM-B (3.0)PCIe 4.0 x8
Supplementary power connectorsNoneNone

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 typeGDDR5System Shared
Maximum RAM amount512 MBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed1250 MHzSystem Shared
Memory bandwidth80 GB/sno data
Shared memory-+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display ConnectorsNo outputsPortable Device Dependent

API and SDK support

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

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.8
OpenGL4.64.6
OpenCL1.22.1
Vulkan1.1.1261.4
CUDA3.0-

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:

Full HD2−3
−400%
10
+400%

FPS performance in popular games

Full HD
Low

Counter-Strike 2 24−27
+0%
24−27
+0%
Cyberpunk 2077 10−12
+0%
10−12
+0%
Resident Evil 4 Remake 8−9
+0%
8−9
+0%

Full HD
Medium

Battlefield 5 21−24
+0%
21−24
+0%
Counter-Strike 2 24−27
+0%
24−27
+0%
Cyberpunk 2077 10−12
+0%
10−12
+0%
Far Cry 5 16−18
+0%
16−18
+0%
Fortnite 30−35
+0%
30−35
+0%
Forza Horizon 4 24−27
+0%
24−27
+0%
Forza Horizon 5 14−16
+0%
14−16
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 20−22
+0%
20−22
+0%
Valorant 60−65
+0%
60−65
+0%

Full HD
High

Battlefield 5 21−24
+0%
21−24
+0%
Counter-Strike 2 24−27
+0%
24−27
+0%
Counter-Strike: Global Offensive 85−90
+0%
85−90
+0%
Cyberpunk 2077 10−12
+0%
10−12
+0%
Far Cry 5 16−18
+0%
16−18
+0%
Fortnite 30−35
+0%
30−35
+0%
Forza Horizon 4 24−27
+0%
24−27
+0%
Forza Horizon 5 14−16
+0%
14−16
+0%
Grand Theft Auto V 16
+0%
16
+0%
Metro Exodus 10−11
+0%
10−11
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 20−22
+0%
20−22
+0%
The Witcher 3: Wild Hunt 14−16
+0%
14−16
+0%
Valorant 60−65
+0%
60−65
+0%

Full HD
Ultra

Battlefield 5 21−24
+0%
21−24
+0%
Cyberpunk 2077 10−12
+0%
10−12
+0%
Far Cry 5 16−18
+0%
16−18
+0%
Forza Horizon 4 24−27
+0%
24−27
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 20−22
+0%
20−22
+0%
The Witcher 3: Wild Hunt 14−16
+0%
14−16
+0%

Full HD
Epic

Fortnite 30−35
+0%
30−35
+0%

1440p
High

Counter-Strike 2 10−11
+0%
10−11
+0%
Counter-Strike: Global Offensive 40−45
+0%
40−45
+0%
Grand Theft Auto V 4−5
+0%
4−5
+0%
Metro Exodus 4−5
+0%
4−5
+0%
Valorant 55−60
+0%
55−60
+0%

1440p
Ultra

Battlefield 5 6−7
+0%
6−7
+0%
Cyberpunk 2077 4−5
+0%
4−5
+0%
Far Cry 5 10−11
+0%
10−11
+0%
Forza Horizon 4 12−14
+0%
12−14
+0%
The Witcher 3: Wild Hunt 7−8
+0%
7−8
+0%

1440p
Epic

Fortnite 10−11
+0%
10−11
+0%

4K
High

Grand Theft Auto V 16−18
+0%
16−18
+0%
The Witcher 3: Wild Hunt 2−3
+0%
2−3
+0%
Valorant 24−27
+0%
24−27
+0%

4K
Ultra

Battlefield 5 3−4
+0%
3−4
+0%
Cyberpunk 2077 1−2
+0%
1−2
+0%
Far Cry 5 4−5
+0%
4−5
+0%
Forza Horizon 4 7−8
+0%
7−8
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 5−6
+0%
5−6
+0%

4K
Epic

Fortnite 5−6
+0%
5−6
+0%

This is how GTX 660M Mac Edition and Radeon 820M compete in popular games:

  • Radeon 820M is 400% faster in 1080p

All in all, in popular games:

  • there's a draw in 52 tests (100%)

Pros & cons summary

Performance score 1.47 5.10
Chip lithography 28 nm 4 nm
Power consumption (TDP) 50 Watt 15 Watt

Radeon 820M has a 247% higher aggregate performance score, a 600% more advanced lithography process, and 233% lower power consumption.

The Radeon 820M is our recommended choice as it beats the GeForce GTX 660M Mac Edition in performance tests.

Other comparisons

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

GTX 660M Mac Edition GeForce GTX 660M Mac Edition
vs
R7 A360 Radeon R7 A360
Radeon 820M Radeon 820M
vs
GeForce 945M GeForce 945M
GTX 660M Mac Edition GeForce GTX 660M Mac Edition
vs
R7 (Kaveri) Radeon R7 (Kaveri)
GT 820M GeForce GT 820M
vs
Qualcomm SD X Adreno X1-45 2.1 TFLOPS SD X Adreno X1-45 2.1 TFLOPS
GT 745A GeForce GT 745A
vs
FX 350M Quadro FX 350M
GT 745A GeForce GT 745A
vs
GTX 560 OEM GeForce GTX 560 OEM
GT 745A GeForce GT 745A
vs
R7 M270DX Radeon R7 M270DX
GeForce 720M GeForce 720M
vs
RX 6700 Radeon RX 6700
GT 640M Mac Edition GeForce GT 640M Mac Edition
vs
RTX 2070 GeForce RTX 2070
GeForce 615 GeForce 615
vs
ATI E4690 Radeon E4690
RX 580 XTR Radeon RX 580 XTR
vs
7800 GTX 512 GeForce 7800 GTX 512
RX 580 XTR Radeon RX 580 XTR
vs
GeForce MX570 GeForce MX570
GT 1030 GeForce GT 1030
vs
GT 720M GeForce GT 720M

Community ratings

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

2.9 24 votes

Rate GeForce GTX 660M Mac Edition on a scale of 1 to 5:

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3.5 4 votes

Rate Radeon 820M on a scale of 1 to 5:

  • 1
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  • 3
  • 4
  • 5

Comments

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