AMD Radeon HD 7870 GHz Edition vs AMD Radeon RX 7800 XT

VS

AMD Radeon HD 7870 GHz Edition AMD Radeon RX 7800 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

Lower TDP (175W vs 263W)

AMD Radeon RX 7800 XT 's Advantages

Released 11 years and 5 months late

Boost Clock2430MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (624.1GB/s vs 153.6GB/s)

2560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon RX 7800 XT +1357%

37.32 TFLOPS

Radeon HD 7870 GHz Edition

VS

Radeon RX 7800 XT

Graphics Card

Mar 2012

Release Date

Aug 2023

Southern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1295 MHz

-

Boost Clock

2430 MHz

1200 MHz

Memory Clock

2438 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

624.1GB/s

Render Config

-

SM Count

-

20

Compute Units

60

1280

Shading Units

3840

80

TMUs

240

32

ROPs

96

-

Tensor Cores

-

RT Cores

60

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

233.3 GPixel/s

80.00 GTexel/s

Texture Rate

583.2 GTexel/s

-

FP16 (half)

74.65 TFLOPS

2.560 TFLOPS

FP32 (float)

37.32 TFLOPS

160.0 GFLOPS

FP64 (double)

1166 GFLOPS

Graphics Processor

Pitcairn

GPU Name

Navi 32

Pitcairn XT (215-0828047)

GPU Variant

Navi 32 XT (215-180000006)

GCN 1.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

2.8 billion

Transistors

28.1 billion

212 mm²

Die Size

346 mm²

Board Design

175W

TDP

263W

450 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.1a 3x DisplayPort 2.1

2x 6-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.7

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