ATI Radeon HD 2900 XTX vs NVIDIA GeForce RTX 3090

VS

ATI Radeon HD 2900 XTX

NVIDIA GeForce RTX 3090

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 24GB VRAM GeForce RTX 3090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 350W)

NVIDIA GeForce RTX 3090 's Advantages

Boost Clock1695MHz

More VRAM (24GB vs 512GB)

Larger VRAM bandwidth (936.2GB/s vs 106.0GB/s)

10176 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce RTX 3090 +7374%

35.58 TFLOPS

Radeon HD 2900 XTX

VS

GeForce RTX 3090

Graphics Card

Unknown

Release Date

Sep 2020

Radeon R600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1395 MHz

-

Boost Clock

1695 MHz

828 MHz

Memory Clock

1219 MHz

Memory

512MB

Memory Size

24GB

GDDR3

Memory Type

GDDR6X

512bit

Memory Bus

384bit

106.0GB/s

Bandwidth

936.2GB/s

Render Config

4

Compute Units

-

SM Count

82

320

Shading Units

10496

16

TMUs

328

16

ROPs

112

-

Tensor Cores

328

-

RT Cores

82

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

189.8 GPixel/s

11.89 GTexel/s

Texture Rate

556.0 GTexel/s

-

FP16 (half)

35.58 TFLOPS

475.5 GFLOPS

FP32 (float)

35.58 TFLOPS

-

FP64 (double)

556.0 GFLOPS

Board Design

240W

TDP

350W

550 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 12-pin

Graphics Processor

R600

GPU Name

GA102

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

GA102-300-A1

TeraScale

Architecture

Ampere

TSMC

Foundry

Samsung

80 nm

Process Size

8 nm

0.72 billion

Transistors

28.3 billion

420 mm²

Die Size

628 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

6.6

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