ATI Radeon HD 2900 XTX vs NVIDIA GeForce RTX 3080

VS

ATI Radeon HD 2900 XTX

NVIDIA GeForce RTX 3080

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 10GB VRAM GeForce RTX 3080 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 320W)

NVIDIA GeForce RTX 3080 's Advantages

Boost Clock1710MHz

More VRAM (10GB vs 512GB)

Larger VRAM bandwidth (760.3GB/s vs 106.0GB/s)

8384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce RTX 3080 +6154%

29.77 TFLOPS

Radeon HD 2900 XTX

VS

GeForce RTX 3080

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

1440 MHz

-

Boost Clock

1710 MHz

828 MHz

Memory Clock

1188 MHz

Memory

512MB

Memory Size

10GB

GDDR3

Memory Type

GDDR6X

512bit

Memory Bus

320bit

106.0GB/s

Bandwidth

760.3GB/s

Render Config

4

Compute Units

-

SM Count

68

320

Shading Units

8704

16

TMUs

272

16

ROPs

96

-

Tensor Cores

272

-

RT Cores

68

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

5 MB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

164.2 GPixel/s

11.89 GTexel/s

Texture Rate

465.1 GTexel/s

-

FP16 (half)

29.77 TFLOPS

475.5 GFLOPS

FP32 (float)

29.77 TFLOPS

-

FP64 (double)

465.1 GFLOPS

Board Design

240W

TDP

320W

550 W

Suggested PSU

700 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

GA102-200-KD-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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