AMD Radeon R7 450 OEM vs ATI Radeon HD 4870 Mac Edition

VS

AMD Radeon R7 450 OEM

ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM 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 R7 450 OEM 's Advantages

Released 7 years and 5 months late

More VRAM (2GB vs 512GB)

Lower TDP (65W vs 150W)

ATI Radeon HD 4870 Mac Edition 's Advantages

Larger VRAM bandwidth (108.8GB/s vs 72.00GB/s)

288 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 450 OEM

0.947 TFLOPS

Radeon HD 4870 Mac Edition +26%

1.2 TFLOPS

Radeon R7 450 OEM

VS

Radeon HD 4870 Mac Edition

Graphics Card

Jun 2016

Release Date

Jan 2009

Arctic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

108.8GB/s

Render Config

8

Compute Units

10

-

512

Shading Units

800

32

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

12.00 GPixel/s

29.60 GTexel/s

Texture Rate

30.00 GTexel/s

-

947.2 GFLOPS

FP32 (float)

1200 GFLOPS

59.20 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x mini-DisplayPort 1.0

None

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

RV770

Cape Verde PRO2

GPU Variant

RV770 XT Mac (215-0669080)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.956 billion

123 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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