AMD Radeon HD 7970 GHz Edition vs AMD Radeon R7 250E

VS

AMD Radeon HD 7970 GHz Edition

AMD Radeon R7 250E

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 1024MB VRAM Radeon R7 250E to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Boost Clock1050MHz

More VRAM (3GB vs 1024GB)

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

1536 additional rendering cores

AMD Radeon R7 250E 's Advantages

Released 1 years and 6 months late

Lower TDP (55W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +425%

4.301 TFLOPS

Radeon R7 250E

0.819 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon R7 250E

Graphics Card

Jun 2012

Release Date

Dec 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

1125 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

72.00GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

12.80 GPixel/s

134.4 GTexel/s

Texture Rate

25.60 GTexel/s

-

4.301 TFLOPS

FP32 (float)

819.2 GFLOPS

1075 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

300W

TDP

55W

700 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Cape Verde

Tahiti XT2 (215-0821065)

GPU Variant

Cape Verde PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.5 billion

352 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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