NVIDIA RTX A400 vs ATI Radeon HD 2900 GT

VS

We compared two Desktop platform GPUs: 4GB VRAM RTX A400 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A400 's Advantages

Released 16 years and 5 months late

Boost Clock1762MHz

Larger VRAM bandwidth (96.00GB/s vs 51.20GB/s)

528 additional rendering cores

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

RTX A400 +839%

2.706 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

RTX A400

VS

Radeon HD 2900 GT

Graphics Card

Apr 2024

Release Date

Nov 2007

Quadro Ampere

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

727 MHz

Base Clock

-

1762 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

64bit

Memory Bus

256bit

96.00GB/s

Bandwidth

51.20GB/s

Render Config

6

SM Count

-

Compute Units

3

768

Shading Units

240

24

TMUs

12

16

ROPs

12

24

Tensor Cores

-

6

RT Cores

-

128 KB (per SM)

L1 Cache

-

2 MB

L2 Cache

128 KB

Theoretical Performance

28.19 GPixel/s

Pixel Rate

7.212 GPixel/s

42.29 GTexel/s

Texture Rate

7.212 GTexel/s

2.706 TFLOPS

FP16 (half)

-

2.706 TFLOPS

FP32 (float)

288.5 GFLOPS

42.29 GFLOPS

FP64 (double)

-

Graphics Processor

GA107

GPU Name

R600

-

GPU Variant

R600 GT (215RGFDKA13FG)

Ampere

Architecture

TeraScale

Samsung

Foundry

TSMC

8 nm

Process Size

80 nm

8.7 billion

Transistors

0.72 billion

200 mm²

Die Size

420 mm²

Board Design

50W

TDP

150W

250 W

Suggested PSU

450 W

4x mini-DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

8.6

CUDA

-

6.7

Shader Model

4.0

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