ATI Radeon HD 2900 XT vs NVIDIA RTX A400

VS

ATI Radeon HD 2900 XT

NVIDIA RTX A400

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 96.00GB/s)

NVIDIA RTX A400 's Advantages

Released 16 years and 11 months late

Boost Clock1762MHz

More VRAM (4GB vs 512GB)

448 additional rendering cores

Lower TDP (50W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

RTX A400 +468%

2.706 TFLOPS

Radeon HD 2900 XT

VS

RTX A400

Graphics Card

May 2007

Release Date

Apr 2024

Radeon R600

Generation

Quadro Ampere(Ax000)

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1417 MHz

-

Boost Clock

1762 MHz

828 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

4GB

GDDR3

Memory Type

GDDR6

512bit

Memory Bus

64bit

106.0GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

-

SM Count

6

320

Shading Units

768

16

TMUs

24

16

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

28.19 GPixel/s

11.89 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

475.5 GFLOPS

FP32 (float)

2.706 TFLOPS

-

FP64 (double)

42.29 GFLOPS

Board Design

215W

TDP

50W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

4x mini-DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

GA107

R600 XT (215RGMDKA13FG)

GPU Variant

-

TeraScale

Architecture

Ampere

TSMC

Foundry

Samsung

80 nm

Process Size

8 nm

0.72 billion

Transistors

8.7 billion

420 mm²

Die Size

200 mm²

Graphics Features

10.0 (10_0)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

4.0

Shader Model

6.8

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