AMD Radeon HD 6850 X2 vs NVIDIA RTX A400

VS

AMD Radeon HD 6850 X2

NVIDIA RTX A400

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)

192 additional rendering cores

NVIDIA RTX A400 's Advantages

Released 12 years and 7 months late

Boost Clock1762MHz

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

RTX A400 +76%

2.706 TFLOPS

Radeon HD 6850 X2

VS

RTX A400

Graphics Card

Sep 2011

Release Date

Apr 2024

Northern Islands

Generation

Quadro Ampere(Ax000)

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1417 MHz

-

Boost Clock

1762 MHz

1050 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

96.00GB/s

Render Config

12

Compute Units

-

SM Count

6

960

Shading Units

768

48

TMUs

24

32

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

28.19 GPixel/s

38.40 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

1.536 TFLOPS

FP32 (float)

2.706 TFLOPS

-

FP64 (double)

42.29 GFLOPS

Board Design

254W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

4x mini-DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

GA107

Barts PRO (215-0798006)

GPU Variant

-

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.7 billion

Transistors

8.7 billion

255 mm²

Die Size

200 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

5.0

Shader Model

6.8

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