AMD Radeon HD 6790 vs NVIDIA T400

VS

AMD Radeon HD 6790

NVIDIA T400

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 2GB VRAM T400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

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

416 additional rendering cores

NVIDIA T400 's Advantages

Released 10 years and 1 months late

Boost Clock1425MHz

More VRAM (2GB vs 1024GB)

Lower TDP (30W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790 +22%

1.344 TFLOPS

T400

1.094 TFLOPS

Radeon HD 6790

VS

T400

Graphics Card

Apr 2011

Release Date

May 2021

Northern Islands

Generation

Quadro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

420 MHz

-

Boost Clock

1425 MHz

1050 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

80.00GB/s

Render Config

10

Compute Units

-

SM Count

6

800

Shading Units

384

40

TMUs

24

16

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

22.80 GPixel/s

33.60 GTexel/s

Texture Rate

34.20 GTexel/s

-

FP16 (half)

2.189 TFLOPS

1344 GFLOPS

FP32 (float)

1094 GFLOPS

-

FP64 (double)

34.20 GFLOPS

Board Design

150W

TDP

30W

450 W

Suggested PSU

200 W

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

Outputs

3x mini-DisplayPort 1.4a

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

TU117

Barts LE (215-0798002)

GPU Variant

-

TeraScale 2

Architecture

Turing

TSMC

Foundry

TSMC

40 nm

Process Size

12 nm

1.7 billion

Transistors

4.7 billion

255 mm²

Die Size

200 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

7.5

5.0

Shader Model

6.6

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