AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 4090

VS

AMD Radeon HD 6870 X2 NVIDIA GeForce RTX 4090

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Lower TDP (300W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

Released 11 years and 2 months late

Boost Clock2520MHz

More VRAM (24GB vs 1GB)

Larger VRAM bandwidth (1010GB/s vs 134.4GB/s)

15264 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

GeForce RTX 4090 +3996%

82.58 TFLOPS

Radeon HD 6870 X2

VS

GeForce RTX 4090

Graphics Card

Jul 2011

Release Date

Sep 2022

Northern Islands

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2235 MHz

-

Boost Clock

2520 MHz

1050 MHz

Memory Clock

1313 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

1010GB/s

Render Config

-

SM Count

128

14

Compute Units

-

1120

Shading Units

16384

56

TMUs

512

32

ROPs

176

-

Tensor Cores

512

-

RT Cores

128

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

72 MB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

443.5 GPixel/s

50.40 GTexel/s

Texture Rate

1290 GTexel/s

-

FP16 (half)

82.58 TFLOPS

2.016 TFLOPS

FP32 (float)

82.58 TFLOPS

-

FP64 (double)

1290 GFLOPS

Graphics Processor

Barts

GPU Name

AD102

Barts XT (215-0798000)

GPU Variant

AD102-300-A1

TeraScale 2

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

1.7 billion

Transistors

76.3 billion

255 mm²

Die Size

609 mm²

Board Design

300W

TDP

450W

700 W

Suggested PSU

850 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

-

Power Connectors

1x 16-pin

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.9

5.0

Shader Model

6.7

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