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AMD Radeon 660M

Graphics Processor
Rembrandt
Cores
384
TMUs
24
ROPs
16
Memory Size
System Shared
Memory Type
System Shared
Bus Width
System Shared
The Radeon 660M is a mobile integrated graphics solution by AMD, launched in 2022. Built on the 7 nm process, and based on the Rembrandt graphics processor, the device supports DirectX 12 Ultimate. This ensures that all modern games will run on Radeon 660M. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. Unlike the fully unlocked Radeon 680M, which uses the same GPU but has all 768 shaders enabled, AMD has disabled some shading units on the Radeon 660M to reach the product's target shader count. It features 384 shading units, 24 texture mapping units, and 16 ROPs. The card also has 6 raytracing acceleration cores. The GPU is operating at a frequency of 1500 MHz, which can be boosted up to 1900 MHz.
Its power draw is rated at 15 W maximum. Radeon 660M is connected to the rest of the system using a PCI-Express 4.0 x8 interface.

Graphics Processor

GPU Name
Rembrandt
Architecture
RDNA 2.0
Foundry
TSMC
Process Size
7 nm
Transistors
unknown
Die Size
unknown

Integrated Graphics

Release Date
2022
Generation
Rembrandt
(600)
Production
Active
Bus Interface
PCIe 4.0 x8

Relative Performance

8%
GeForce 210
10%
GeForce 9400 GT
12%
Radeon HD 4550
16%
Radeon HD 5450
18%
Radeon HD 6450
19%
GeForce GT 520
24%
GeForce GT 220
31%
GeForce GT 430
32%
Radeon HD 5570
35%
Radeon HD 4670
36%
GeForce GT 440
37%
GeForce GT 240
43%
GeForce 9600 GT
45%
Radeon HD 5670
49%
GeForce GT 640
50%
GeForce 9800 GT
52%
Radeon HD 6670
54%
Radeon HD 4830
58%
Radeon HD 4770
61%
Radeon HD 4850
62%
GeForce GTS 250
64%
GeForce GTS 450
66%
Radeon HD 5750
76%
Radeon HD 7750
76%
Radeon HD 5770
78%
GeForce GTX 260
79%
Radeon HD 4870
79%
Radeon Vega 8
80%
GeForce GTX 550 Ti
80%
GeForce GTX 650
85%
Radeon HD 5830
89%
Radeon HD 6790
91%
Radeon HD 4890
94%
GeForce GTX 460
95%
Radeon RX Vega 11
96%
GeForce GT 1030
97%
GeForce GTX 275
97%
Radeon HD 7770 GHz Edition
97%
GeForce GTX 280
99%
GeForce GTX 465
100%
Radeon 660M
104%
Radeon HD 6850
106%
GeForce GTX 285
114%
Radeon HD 5850
116%
Radeon HD 7790
116%
GeForce GTX 650 Ti
121%
Radeon RX 550
121%
GeForce GTX 470
125%
Radeon HD 6870
134%
Radeon HD 5870
138%
GeForce GTX 560 Ti
139%
Radeon HD 4870 X2
141%
GeForce GTX 750 Ti
142%
Radeon HD 6950
147%
GeForce GTX 295
149%
GeForce GTX 650 Ti Boost
150%
Radeon HD 7850
152%
GeForce GTX 480
159%
Radeon HD 6970
162%
Radeon R7 265
165%
Radeon RX 460
165%
Radeon R7 370
166%
GeForce GTX 660
166%
GeForce GTX 570
169%
Radeon RX 560
179%
GeForce GTX 950
181%
Radeon HD 7870 GHz Edition
185%
Radeon R9 270X
188%
GeForce GTX 660 Ti
188%
GeForce GTX 580
190%
GeForce GTX 1050
190%
Radeon HD 7950
194%
Radeon HD 5970
200%
GeForce GTX 760
215%
GeForce GTX 670
220%
GeForce GTX 960
226%
Radeon R9 380
227%
Radeon R9 285
230%
Radeon HD 7970
232%
GeForce GTX 680
237%
GeForce GTX 1050 Ti
244%
GeForce GTX 770
249%
Radeon HD 6990
255%
Radeon R9 280X
259%
GeForce GTX 590
259%
Radeon HD 7970 GHz Edition
287%
GeForce GTX 780
297%
GeForce GTX 1650
316%
Radeon RX 470
320%
Radeon R9 290
337%
Radeon RX 570
342%
Radeon R9 390
343%
Radeon R9 290X
348%
GeForce GTX 970
353%
GeForce GTX TITAN
357%
GeForce GTX 780 Ti
362%
Radeon R9 390X
364%
Radeon HD 7990
366%
Radeon RX 480
369%
GeForce GTX 690
379%
GeForce GTX 1060 6 GB
384%
Radeon RX 5500 OEM
389%
Radeon RX 580
392%
Radeon RX 5500 XT
395%
Radeon RX 6500 XT
397%
GeForce GTX 980
400%
GeForce GTX 1650 SUPER
402%
Radeon R9 FURY
420%
Radeon RX 590
442%
Radeon R9 295X2
444%
GeForce GTX 1660
450%
Radeon R9 FURY X
457%
GeForce GTX 980 Ti
469%
GeForce GTX TITAN X
499%
GeForce GTX 1660 SUPER
510%
GeForce GTX 1660 Ti
510%
GeForce GTX 1070
543%
Radeon RX Vega 56
576%
GeForce GTX 1070 Ti
585%
Radeon RX 5600 XT
593%
Radeon RX Vega 64
601%
GeForce GTX 1080
601%
GeForce RTX 2060
626%
Radeon RX 5700
675%
GeForce RTX 2060 SUPER
700%
GeForce RTX 2070
714%
GeForce RTX 3060
716%
Radeon RX 5700 XT
724%
Radeon VII
743%
TITAN X Pascal
765%
GeForce GTX 1080 Ti
774%
GeForce RTX 2070 SUPER
798%
Radeon RX 6600 XT
823%
GeForce RTX 2080
872%
GeForce RTX 2080 SUPER
894%
GeForce RTX 3060 Ti
909%
Radeon RX 6700 XT
980%
GeForce RTX 2080 Ti
1047%
GeForce RTX 3070
1120%
GeForce RTX 3070 Ti
1154%
Radeon RX 6800
1324%
Radeon RX 6800 XT
1360%
GeForce RTX 3080
1439%
Radeon RX 6900 XT
1524%
GeForce RTX 3080 Ti
1539%
GeForce RTX 3090
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

Base Clock
1500 MHz
Boost Clock
1900 MHz
Memory Clock
System Shared

IGP Variants

Memory

Memory Size
System Shared
Memory Type
System Shared
Memory Bus
System Shared
Bandwidth
System Dependent

Render Config

Shading Units
384
TMUs
24
ROPs
16
Compute Units
6
RT Cores
6
L0 Cache
32 KB per WGP
L1 Cache
128 KB per Array
L2 Cache
1024 KB
L3 Cache
8 MB

Theoretical Performance

Pixel Rate
30.40 GPixel/s
Texture Rate
45.60 GTexel/s
FP16 (half) performance
2.918 TFLOPS (2:1)
FP32 (float) performance
1,459 GFLOPS
FP64 (double) performance
91.20 GFLOPS (1:16)

Board Design

Slot Width
IGP
TDP
15 W
Outputs
No outputs
Power Connectors
None

Graphics Features

DirectX
12 Ultimate (12_2)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2
Shader Model
6.5

Rembrandt GPU Notes

Architecture Codename: Navi
Codename: Yellow Carp
Graphics/Compute: GFX10 (gfx1035)
Display Core Next: 3.1
Video Core Next: 3.0