AMD Radeon HD 8870 OEM vs NVIDIA GeForce RTX 5080

VS

AMD Radeon HD 8870 OEM

NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 16GB VRAM GeForce RTX 5080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 350W)

NVIDIA GeForce RTX 5080 's Advantages

Released 12 years late

Boost Clock2520MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (973.8GB/s vs 153.6GB/s)

9472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce RTX 5080 +2016%

54.19 TFLOPS

Radeon HD 8870 OEM

VS

GeForce RTX 5080

Graphics Card

Jan 2013

Release Date

Jan 2025

Sea Islands

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

2235 MHz

-

Boost Clock

2520 MHz

1200 MHz

Memory Clock

2400 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

973.8GB/s

Render Config

20

Compute Units

-

SM Count

84

1280

Shading Units

10752

80

TMUs

336

32

ROPs

128

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

64 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

322.6 GPixel/s

80.00 GTexel/s

Texture Rate

846.7 GTexel/s

-

FP16 (half)

54.19 TFLOPS

2.560 TFLOPS

FP32 (float)

54.19 TFLOPS

160.0 GFLOPS

FP64 (double)

846.7 GFLOPS

Board Design

175W

TDP

350W

450 W

Suggested PSU

750 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

2x 6-pin

Power Connectors

1x 16-pin

Graphics Processor

Pitcairn

GPU Name

GB203

Pitcairn XT (215-0828047)

GPU Variant

GB203-400-A1

GCN 1.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

0

2.8 billion

Transistors

Unknown

212 mm²

Die Size

377 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

10.1

5.1

Shader Model

6.8

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