AMD Radeon R9 390 X2 vs NVIDIA GeForce GTX 950

VS

AMD Radeon R9 390 X2

NVIDIA GeForce GTX 950

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 2GB VRAM GeForce GTX 950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 105.8GB/s)

1792 additional rendering cores

NVIDIA GeForce GTX 950 's Advantages

Boost Clock1188MHz

Lower TDP (90W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +180%

5.12 TFLOPS

GeForce GTX 950

1.825 TFLOPS

Radeon R9 390 X2

VS

GeForce GTX 950

Graphics Card

Sep 2015

Release Date

Aug 2015

Pirate Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1024 MHz

-

Boost Clock

1188 MHz

1350 MHz

Memory Clock

1653 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

105.8GB/s

Render Config

40

Compute Units

-

2560

Shading Units

768

160

TMUs

48

64

ROPs

32

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

38.02 GPixel/s

160.0 GTexel/s

Texture Rate

57.02 GTexel/s

-

5.120 TFLOPS

FP32 (float)

1.825 TFLOPS

640.0 GFLOPS

FP64 (double)

57.02 GFLOPS

Board Design

580W

TDP

90W

950 W

Suggested PSU

250 W

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

Outputs

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

4x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Grenada

GPU Name

GM206

Grenada PRO (215-0880030)

GPU Variant

GM206-250-A1

GCN 2.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

2.94 billion

438 mm²

Die Size

228 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

6.3

Shader Model

6.4

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