AMD Radeon R9 390X vs NVIDIA GeForce GTX 950

VS

AMD Radeon R9 390X

NVIDIA GeForce GTX 950

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X 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 390X 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 105.8GB/s)

2048 additional rendering cores

NVIDIA GeForce GTX 950 's Advantages

Boost Clock1188MHz

Lower TDP (90W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +224%

5.914 TFLOPS

GeForce GTX 950

1.825 TFLOPS

3DMark Time Spy

Radeon R9 390X +127%

4245

GeForce GTX 950

1862

Radeon R9 390X

VS

GeForce GTX 950

Graphics Card

Jun 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

1500 MHz

Memory Clock

1653 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

105.8GB/s

Render Config

44

Compute Units

-

2816

Shading Units

768

176

TMUs

48

64

ROPs

32

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

38.02 GPixel/s

184.8 GTexel/s

Texture Rate

57.02 GTexel/s

-

5.914 TFLOPS

FP32 (float)

1.825 TFLOPS

739.2 GFLOPS

FP64 (double)

57.02 GFLOPS

Board Design

275W

TDP

90W

600 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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Grenada

GPU Name

GM206

Grenada XT (215-0880004)

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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