T400 vs T1000

Place in the ranking	274	466
Place by popularity	not in top-100	not in top-100
Power efficiency	27.41	21.70
Architecture	Turing (2018−2022)	Turing (2018−2022)
GPU code name	TU117	TU117
Market segment	Workstation	Workstation
Release date	6 May 2021 (3 years ago)	6 May 2021 (3 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 cores	896	384
Core clock speed	1065 MHz	420 MHz
Boost clock speed	1395 MHz	1425 MHz
Number of transistors	4,700 million	4,700 million
Manufacturing process technology	12 nm	12 nm
Power consumption (TDP)	50 Watt	30 Watt
Texture fill rate	78.12	34.20
Floating-point processing power	2.5 TFLOPS	1.094 TFLOPS
ROPs	32	16
TMUs	56	24

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).

Interface	PCIe 3.0 x16	PCIe 3.0 x16
Width	1-slot	1-slot
Supplementary power connectors	None	None

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 type	GDDR6	GDDR6
Maximum RAM amount	4 GB	2 GB
Memory bus width	128 Bit	64 Bit
Memory clock speed	1250 MHz	1250 MHz
Memory bandwidth	160.0 GB/s	80 GB/s

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 Connectors

4x mini-DisplayPort

3x mini-DisplayPort

API compatibility

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

DirectX	12 (12_1)	12 (12_1)
Shader Model	6.6	6.6
OpenGL	4.6	4.6
OpenCL	3.0	3.0
Vulkan	1.2	1.2
CUDA	7.5	7.5

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.

T1000 19.79
+111%

T400 9.40

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.

T1000 7637
+111%

T400 3626

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.

T1000 37502
+121%

T400 16965