ATI Radeon HD 4870 Mac Edition vs AMD Radeon RX 7900 XT

VS

ATI Radeon HD 4870 Mac Edition AMD Radeon RX 7900 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 20GB VRAM Radeon RX 7900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 Mac Edition 's Advantages

Lower TDP (150W vs 300W)

AMD Radeon RX 7900 XT 's Advantages

Released 13 years and 10 months late

Boost Clock2394MHz

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

4576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition

1.2 TFLOPS

Radeon RX 7900 XT +4190%

51.48 TFLOPS

Radeon HD 4870 Mac Edition

VS

Radeon RX 7900 XT

Graphics Card

Jan 2009

Release Date

Nov 2022

Radeon R700

Generation

Navi III

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1387 MHz

-

Boost Clock

2394 MHz

850 MHz

Memory Clock

2500 MHz

Memory

512MB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

320bit

108.8GB/s

Bandwidth

800.0GB/s

Render Config

-

SM Count

-

10

Compute Units

84

800

Shading Units

5376

40

TMUs

336

16

ROPs

192

-

Tensor Cores

-

RT Cores

84

16 KB (per CU)

L1 Cache

256 KB per Array

256 KB

L2 Cache

6 MB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

459.6 GPixel/s

30.00 GTexel/s

Texture Rate

804.4 GTexel/s

-

FP16 (half)

103.0 TFLOPS

1200 GFLOPS

FP32 (float)

51.48 TFLOPS

240.0 GFLOPS

FP64 (double)

1.609 TFLOPS

Graphics Processor

RV770

GPU Name

Navi 31

RV770 XT Mac (215-0669080)

GPU Variant

Navi 31 XT (215-145000156)

TeraScale

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

55 nm

Process Size

5 nm

0.956 billion

Transistors

57.7 billion

256 mm²

Die Size

529 mm²

Board Design

150W

TDP

300W

450 W

Suggested PSU

700 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

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

2x 6-pin

Power Connectors

2x 8-pin

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3

OpenGL

4.6

1.1

OpenCL

2.2

N/A

Vulkan

1.3

-

CUDA

-

4.1

Shader Model

6.7

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