NVIDIA T400 4 GB vs AMD Radeon HD 6870 X2

VS

We compared two Desktop platform GPUs: 4GB VRAM T400 4 GB and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA T400 4 GB 's Advantages

Released 9 years and 10 months late

Boost Clock1425MHz

More VRAM (4GB vs 1GB)

Lower TDP (30W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 80.00GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

T400 4 GB

1.094 TFLOPS

Radeon HD 6870 X2 +84%

2.016 TFLOPS

T400 4 GB

VS

Radeon HD 6870 X2

Graphics Card

May 2021

Release Date

Jul 2011

Quadro

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

420 MHz

Base Clock

-

1425 MHz

Boost Clock

-

1250 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

80.00GB/s

Bandwidth

134.4GB/s

Render Config

6

SM Count

-

Compute Units

14

384

Shading Units

1120

24

TMUs

56

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

22.80 GPixel/s

Pixel Rate

28.80 GPixel/s

34.20 GTexel/s

Texture Rate

50.40 GTexel/s

2.189 TFLOPS

FP16 (half)

-

1094 GFLOPS

FP32 (float)

2.016 TFLOPS

34.20 GFLOPS

FP64 (double)

-

Graphics Processor

TU117

GPU Name

Barts

-

GPU Variant

Barts XT (215-0798000)

Turing

Architecture

TeraScale 2

TSMC

Foundry

TSMC

12 nm

Process Size

40 nm

4.7 billion

Transistors

1.7 billion

200 mm²

Die Size

255 mm²

Board Design

30W

TDP

300W

200 W

Suggested PSU

700 W

3x mini-DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

-

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

7.5

CUDA

-

6.6

Shader Model

5.0

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