NVIDIA GeForce RTX 5090 vs ATI Radeon HD 3870 X2

VS

NVIDIA GeForce RTX 5090

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 32GB VRAM GeForce RTX 5090 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5090 's Advantages

Released 17 years late

Boost Clock2520MHz

More VRAM (32GB vs 512GB)

Larger VRAM bandwidth (1.52TB/s vs 57.66GB/s)

21440 additional rendering cores

ATI Radeon HD 3870 X2 's Advantages

Lower TDP (165W vs 500W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 +20676%

109.7 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

GeForce RTX 5090

VS

Radeon HD 3870 X2

Graphics Card

Jan 2025

Release Date

Jan 2008

GeForce 50

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1875 MHz

Memory Clock

901 MHz

Memory

32GB

Memory Size

512MB

GDDR7

Memory Type

GDDR3

512bit

Memory Bus

256bit

1.52TB/s

Bandwidth

57.66GB/s

Render Config

-

Compute Units

4

170

SM Count

-

21760

Shading Units

320

680

TMUs

16

192

ROPs

16

680

Tensor Cores

-

170

RT Cores

-

128 KB (per SM)

L1 Cache

-

88 MB

L2 Cache

256 KB

-

Theoretical Performance

483.8 GPixel/s

Pixel Rate

13.20 GPixel/s

1714 GTexel/s

Texture Rate

13.20 GTexel/s

109.7 TFLOPS

FP16 (half)

-

109.7 TFLOPS

FP32 (float)

528.0 GFLOPS

1.714 TFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

500W

TDP

165W

900 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

2x DVI 1x S-Video

1x 16-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GB202

GPU Name

R680

GB202-400-A1

GPU Variant

R680 XT (215-0708017)

Blackwell 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

4 nm

Process Size

55 nm

Unknown

Transistors

0.666 billion

Unknown

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

4.1

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