NVIDIA GeForce GTX 980 vs AMD Radeon HD 6390

VS

NVIDIA GeForce GTX 980

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 980 and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 's Advantages

Released 3 years and 2 months late

Boost Clock1216MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.4GB/s vs 16.00GB/s)

1728 additional rendering cores

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 165W)

Score

Benchmark

FP32 (float)

GeForce GTX 980 +1315%

4.981 TFLOPS

Radeon HD 6390

0.352 TFLOPS

GeForce GTX 980

VS

Radeon HD 6390

Graphics Card

Sep 2014

Release Date

Jul 2011

GeForce 900

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1127 MHz

Base Clock

-

1216 MHz

Boost Clock

-

1753 MHz

Memory Clock

500 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

224.4GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

64

ROPs

8

-

48 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

77.82 GPixel/s

Pixel Rate

4.400 GPixel/s

155.6 GTexel/s

Texture Rate

8.800 GTexel/s

-

4.981 TFLOPS

FP32 (float)

352.0 GFLOPS

155.6 GFLOPS

FP64 (double)

-

Board Design

165W

TDP

39W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GM204

GPU Name

Redwood

GM204-400-A1

GPU Variant

Redwood LE

Maxwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

0.627 billion

398 mm²

Die Size

104 mm²

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.2

CUDA

-

6.4

Shader Model

5.0

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