AMD Radeon R7 450 OEM vs AMD Radeon HD 7970 GHz Edition

VS

AMD Radeon R7 450 OEM

AMD Radeon HD 7970 GHz Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM and 3GB VRAM Radeon HD 7970 GHz 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 4 years late

Lower TDP (65W vs 300W)

AMD Radeon HD 7970 GHz Edition 's Advantages

Boost Clock1050MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 72.00GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 450 OEM

0.947 TFLOPS

Radeon HD 7970 GHz Edition +354%

4.301 TFLOPS

Radeon R7 450 OEM

VS

Radeon HD 7970 GHz Edition

Graphics Card

Jun 2016

Release Date

Jun 2012

Arctic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

1125 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

72.00GB/s

Bandwidth

288.0GB/s

Render Config

8

Compute Units

32

-

512

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

33.60 GPixel/s

29.60 GTexel/s

Texture Rate

134.4 GTexel/s

-

947.2 GFLOPS

FP32 (float)

4.301 TFLOPS

59.20 GFLOPS

FP64 (double)

1075 GFLOPS

Board Design

65W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cape Verde

GPU Name

Tahiti

Cape Verde PRO2

GPU Variant

Tahiti XT2 (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

4.313 billion

123 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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