AMD Radeon HD 7870 GHz Edition vs NVIDIA GeForce GTX 980

VS

AMD Radeon HD 7870 GHz Edition

NVIDIA GeForce GTX 980

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 4GB VRAM GeForce GTX 980 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 's Advantages

Released 2 years and 6 months late

Boost Clock1216MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.4GB/s vs 153.6GB/s)

768 additional rendering cores

Lower TDP (165W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

GeForce GTX 980 +94%

4.981 TFLOPS

Radeon HD 7870 GHz Edition

VS

GeForce GTX 980

Graphics Card

Mar 2012

Release Date

Sep 2014

Southern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1127 MHz

-

Boost Clock

1216 MHz

1200 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

224.4GB/s

Render Config

20

Compute Units

-

1280

Shading Units

2048

80

TMUs

128

32

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

77.82 GPixel/s

80.00 GTexel/s

Texture Rate

155.6 GTexel/s

-

2.560 TFLOPS

FP32 (float)

4.981 TFLOPS

160.0 GFLOPS

FP64 (double)

155.6 GFLOPS

Board Design

175W

TDP

165W

450 W

Suggested PSU

450 W

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

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

GM204

Pitcairn XT (215-0828047)

GPU Variant

GM204-400-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

5.2 billion

212 mm²

Die Size

398 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

5.1

Shader Model

6.4

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