ATI Radeon HD 2900 XT vs NVIDIA GeForce RTX 3080 Ti

VS

ATI Radeon HD 2900 XT

NVIDIA GeForce RTX 3080 Ti

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 12GB VRAM GeForce RTX 3080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Lower TDP (215W vs 350W)

NVIDIA GeForce RTX 3080 Ti 's Advantages

Released 14 years late

Boost Clock1665MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (912.4GB/s vs 106.0GB/s)

9920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

GeForce RTX 3080 Ti +7063%

34.1 TFLOPS

Radeon HD 2900 XT

VS

GeForce RTX 3080 Ti

Graphics Card

May 2007

Release Date

May 2021

Radeon R600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1365 MHz

-

Boost Clock

1665 MHz

828 MHz

Memory Clock

1188 MHz

Memory

512MB

Memory Size

12GB

GDDR3

Memory Type

GDDR6X

512bit

Memory Bus

384bit

106.0GB/s

Bandwidth

912.4GB/s

Render Config

4

Compute Units

-

SM Count

80

320

Shading Units

10240

16

TMUs

320

16

ROPs

112

-

Tensor Cores

320

-

RT Cores

80

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

186.5 GPixel/s

11.89 GTexel/s

Texture Rate

532.8 GTexel/s

-

FP16 (half)

34.10 TFLOPS

475.5 GFLOPS

FP32 (float)

34.10 TFLOPS

-

FP64 (double)

532.8 GFLOPS

Board Design

215W

TDP

350W

550 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

R600

GPU Name

GA102

R600 XT (215RGMDKA13FG)

GPU Variant

GA102-225-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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