NVIDIA GeForce RTX 5080 vs AMD Radeon HD 6870 1600SP Edition

VS

NVIDIA GeForce RTX 5080

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 12 years late

Boost Clock2520MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (710.1GB/s vs 134.4GB/s)

9152 additional rendering cores

AMD Radeon HD 6870 1600SP Edition 's Advantages

Lower TDP (175W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +1892%

54.19 TFLOPS

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

GeForce RTX 5080

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Jan 2025

Release Date

Jan 2013

GeForce 50

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1750 MHz

Memory Clock

1050 MHz

Memory

16GB

Memory Size

1024MB

GDDR7

Memory Type

GDDR5

256bit

Memory Bus

256bit

710.1GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

20

84

SM Count

-

10752

Shading Units

1600

336

TMUs

80

128

ROPs

32

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

512 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

27.20 GPixel/s

846.7 GTexel/s

Texture Rate

68.00 GTexel/s

54.19 TFLOPS

FP16 (half)

-

54.19 TFLOPS

FP32 (float)

2.720 TFLOPS

846.7 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

350W

TDP

175W

750 W

Suggested PSU

450 W

1x HDMI 2.13x DisplayPort 1.4a

Outputs

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

1x 16-pin

Power Connectors

2x 6-pin

Graphics Processor

GB203

GPU Name

Cypress

GB203-400-A1

GPU Variant

Cypress XT (215-0735033)

Blackwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

2.154 billion

377 mm²

Die Size

334 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

5.0

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