AMD Radeon RX 7950 XT vs ATI Radeon HD 4870 Mac Edition

VS

AMD Radeon RX 7950 XT

ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7950 XT and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7950 XT 's Advantages

Boost Clock3000MHz

More VRAM (20GB vs 512GB)

Larger VRAM bandwidth (800.0GB/s vs 108.8GB/s)

4576 additional rendering cores

ATI Radeon HD 4870 Mac Edition 's Advantages

Lower TDP (150W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7950 XT +5275%

64.51 TFLOPS

Radeon HD 4870 Mac Edition

1.2 TFLOPS

Radeon RX 7950 XT

VS

Radeon HD 4870 Mac Edition

Graphics Card

Unknown

Release Date

Jan 2009

Navi III

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2000 MHz

Base Clock

-

3000 MHz

Boost Clock

-

2500 MHz

Memory Clock

850 MHz

Memory

20GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

108.8GB/s

Render Config

84

Compute Units

10

-

5376

Shading Units

800

336

TMUs

40

192

ROPs

16

-

84

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

576.0 GPixel/s

Pixel Rate

12.00 GPixel/s

1008 GTexel/s

Texture Rate

30.00 GTexel/s

129.0 TFLOPS

FP16 (half)

-

64.51 TFLOPS

FP32 (float)

1200 GFLOPS

2.016 TFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

300W

TDP

150W

700 W

Suggested PSU

450 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

1x DVI 1x mini-DisplayPort 1.0

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 31

GPU Name

RV770

Navi 31 XT+

GPU Variant

RV770 XT Mac (215-0669080)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.956 billion

529 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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