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NVIDIA Tegra X1

Graphics Processor
GM20B
Cores
256
TMUs
16
ROPs
16
Memory Size
System Shared
Memory Type
System Shared
Bus Width
System Shared
The Tegra X1 was a mobile integrated graphics solution by NVIDIA, launched in January 2015. Built on the 20 nm process, and based on the GM20B graphics processor, in its TM670D-A1 variant, the device supports DirectX 12.0. It features 256 shading units, 16 texture mapping units and 16 ROPs. The GPU is operating at a frequency of 1000 MHz.
Its power draw is rated at 15 W maximum.

Graphics Processor

GPU Name
GM20B
GPU Variant
TM670D-A1
Architecture
Maxwell 2.0
Foundry
TSMC
Process Size
20 nm
Transistors
unknown
Die Size
118 mm²

Graphics Card

Release Date
2015
Generation
Tegra
Production
End-of-life
Bus Interface
IGP

Relative Performance

15%
GeForce 210
20%
GeForce 9400 GT
24%
Radeon HD 4550
31%
Radeon HD 5450
37%
Radeon HD 6450
39%
GeForce GT 520
48%
GeForce GT 220
62%
GeForce GT 430
63%
Radeon HD 5570
69%
Radeon HD 4670
72%
GeForce GT 440
74%
GeForce GT 240
85%
GeForce 9600 GT
90%
Radeon HD 5670
97%
GeForce GT 640
100%
Tegra X1
100%
GeForce 9800 GT
104%
Radeon HD 6670
107%
Radeon HD 4830
115%
Radeon HD 4770
121%
Radeon HD 4850
124%
GeForce GTS 250
127%
GeForce GTS 450
132%
Radeon HD 5750
150%
Radeon HD 7750
152%
Radeon HD 5770
154%
GeForce GTX 260
156%
Radeon HD 4870
157%
Radeon Vega 8
158%
GeForce GTX 550 Ti
160%
GeForce GTX 650
169%
Radeon HD 5830
178%
Radeon HD 6790
181%
Radeon HD 4890
187%
GeForce GTX 460
189%
Radeon RX Vega 11
191%
GeForce GT 1030
192%
GeForce GTX 275
193%
Radeon HD 7770 GHz Edition
193%
GeForce GTX 280
197%
GeForce GTX 465
207%
Radeon HD 6850
211%
GeForce GTX 285
226%
Radeon HD 5850
230%
GeForce GTX 650 Ti
230%
Radeon HD 7790
240%
Radeon RX 550
240%
GeForce GTX 470
249%
Radeon HD 6870
266%
Radeon HD 5870
274%
GeForce GTX 560 Ti
275%
Radeon HD 4870 X2
280%
GeForce GTX 750 Ti
282%
Radeon HD 6950
292%
GeForce GTX 295
295%
GeForce GTX 650 Ti Boost
297%
Radeon HD 7850
302%
GeForce GTX 480
317%
Radeon HD 6970
323%
Radeon R7 265
328%
Radeon R7 370
328%
Radeon RX 560
329%
GeForce GTX 660
330%
GeForce GTX 570
356%
GeForce GTX 950
360%
Radeon HD 7870 GHz Edition
368%
Radeon R9 270X
373%
GeForce GTX 660 Ti
374%
GeForce GTX 580
377%
GeForce GTX 1050
378%
Radeon HD 7950
385%
Radeon RX 460
386%
Radeon HD 5970
397%
GeForce GTX 760
427%
GeForce GTX 670
438%
GeForce GTX 960
449%
Radeon R9 380
452%
Radeon R9 285
456%
Radeon HD 7970
461%
GeForce GTX 680
472%
GeForce GTX 1050 Ti
484%
GeForce GTX 770
495%
Radeon HD 6990
507%
Radeon R9 280X
514%
GeForce GTX 590
515%
Radeon HD 7970 GHz Edition
570%
GeForce GTX 780
627%
Radeon RX 470
636%
Radeon R9 290
679%
Radeon R9 390
682%
Radeon R9 290X
691%
GeForce GTX 970
701%
GeForce GTX TITAN
707%
Radeon RX 570
710%
GeForce GTX 780 Ti
720%
Radeon R9 390X
723%
Radeon HD 7990
727%
Radeon RX 480
733%
GeForce GTX 690
772%
Radeon RX 580
788%
GeForce GTX 980
798%
GeForce GTX 1060 6 GB
798%
Radeon R9 FURY
802%
Radeon RX 590
878%
Radeon R9 295X2
893%
Radeon R9 FURY X
908%
GeForce GTX 980 Ti
977%
GeForce GTX TITAN X
1030%
GeForce GTX 1070
1075%
Radeon RX Vega 56
1166%
GeForce GTX 1070 Ti
1196%
GeForce RTX 2060
1196%
Radeon RX Vega 64
1226%
GeForce GTX 1080
1408%
GeForce RTX 2070
1408%
Radeon VII
1476%
TITAN X Pascal
1514%
GeForce GTX 1080 Ti
1635%
GeForce RTX 2080
1893%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
1000 MHz
Memory Clock
System Shared

Memory

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

Render Config

Shading Units
256
TMUs
16
ROPs
16
SMM Count
2

Theoretical Performance

Pixel Rate
16.00 GPixel/s
Texture Rate
16.00 GTexel/s
FP16 (half) performance
1,024 GFLOPS (2:1)
FP32 (float) performance
512.0 GFLOPS
FP64 (double) performance
16.00 GFLOPS (1:32)

Board Design

Slot Width
IGP
TDP
15 W
Outputs
No outputs

Graphics Features

DirectX
12.0 (12_1)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.96
CUDA
5.3
Shader Model
6.2

GM20B GPU Notes

Codename: NV12B