NVIDIA GeForce ULP K1 (Tegra K1 Kepler GPU)

NVIDIA GeForce ULP K1 (Tegra K1 Kepler GPU)

The NVIDIA Tegra K1 Kepler GPU (successor of the GeForce ULP series) is the integrated graphics card in the Tegra K1 (formerly known as Tegra 5). Compared to its predecessor, the GeForce ULP, it made the move to a unified shader architecture. It integrates a full-featured Kepler-based graphics card that includes a single SMX with 192 CUDA cores clocked at up to 950 MHz, 8 TMUs and 4 ROPs. Therefore, Tegra K1 offers about half the power of a GK208 chip (384 shaders, 32 TMUs, 8 ROPs) such as a GeForce GT 730M or 740M. This is a big step forward compared to the GeForce ULP in the Tegra 4 SoC, which was based on an old architecture with dedicated pixel- and vertex shaders that is similar to the GeForce 6 series of 2004 and supported only OpenGL ES 2.0. The new graphics card supports OpenGL 4.4 and DirectX 11 in hardware, or well above the current OpenGL ES 3.0 standard that is most common amongst the majority of mobile operating systems. Furthermore, the Kepler GPU can be used for general calculations using CUDA and OpenCL 1.1 (1.2 in theory). As an example, Nvidia has shown how to perform real time video effects using the GPU and CUDA (Chimera 2).


In a 7-inch Tegra K1 reference tablet, Nvidia claims the ability to render 60 fps in the GFXBench 2.7.5 T-Rex offscreen test. In our benchmarks, the PowerVR G6430 in the iPad Air was the fastest ARM-based SoC GPU, which achieved only 27 fps. The similarly sized iPad Mini Retina managed 25 fps in the same benchmark. 60 fps would be similar to a Haswell-based Intel HD Graphics 4400 (e.g. in the 4200U). The Adreno 330 achieved 20 - 24 fps in our benchmarks (e.g. in the Galaxy Note 3 or 10.1). Even the announced Adreno 420, which should be up to 40% faster than its predecessor, is not expected to outperform the Tegra 5.

More information on the SoC and performance data on the CPU can be found on the SoC page of the Tegra K1.

Tegra K1 Series
GeForce ULP K1 (Tegra K1 Kepler GPU) 192 @ 950MHz
Pipelines192 - unified
Core Speed *950 MHz
Shared Memoryyes
DirectXDirectX 11, Shader 5.0
technology28 nm
Date of Announcement06.01.2014
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.


Basemark X 1.1 - High Quality
0% 100%
min: 29254      avg: 29254 (100%)     median: 29254 (100%)     max: 29254 fps
Basemark X 1.1 - Medium Quality
0% 100%
min: 36824      avg: 36824 (100%)     median: 36824 (100%)     max: 36824 fps
GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Onscreen C24Z16
0% 100%
min: 53.7      avg: 55.4 (92%)     median: 55.4 (92%)     max: 57 fps
GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Offscreen C24Z16 1920x1080
0% 100%
min: 48      avg: 58 (9%)     median: 60 (9%)     max: 66 fps
3DMark (2013) - Ice Storm Unlimited Graphics Score 1280x720 offscreen
0% 100%
min: 24927      avg: 32420.7 (11%)     median: 35567 (12%)     max: 36768 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

Notebook reviews with NVIDIA GeForce ULP K1 (Tegra K1 Kepler GPU) graphics card

NVIDIA Shield Tablet: NVIDIA Tegra K1, 8", 0.4 kg
  External Review » NVIDIA Shield Tablet

   » NVIDIA Shield Tablet with Tegra K1 and Controller announced

» Comparison of GPUs
Detailled list of all laptop GPUs with a short description. Classified and sorted by performance.

» Benchmark List
Sortable and restrainable list of all GPUs with benchmarks (e.g. 3DMarks).

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Class 1
GeForce GTX 590
GeForce GTX 760
GeForce GTX 580
Radeon HD 6970
GeForce GTX 750 Ti
GeForce GTX 570
GeForce GTX 560 Ti
Radeon HD 6870
Radeon HD 5850
Radeon HD 7770
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
Radeon HD 5770
GeForce GTX 550 Ti
Class 2
GeForce GTS 450
Radeon HD 4850
Class 3
Radeon HD 5670
GeForce GT 240
GeForce GT 430
Radeon HD 5570
GeForce GT 220
Radeon HD 6450 GDDR5
Class 4
Radeon R3 (Mullins/Beema) *
Class 5
Radeon HD 4350
GeForce G 107M *
PowerVR G6400
Chrome9HD *
Class 6
unknown *

* Approximate position of the graphics adapter

> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Comparison of Laptop Graphics Cards > NVIDIA GeForce ULP K1 (Tegra K1)
Author: Klaus Hinum (Update: 2014-01- 6)