AMD Radeon HD 7970 X2 vs NVIDIA GeForce GTX 950

VS

AMD Radeon HD 7970 X2

NVIDIA GeForce GTX 950

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 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 HD 7970 X2 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 105.8GB/s)

1280 additional rendering cores

NVIDIA GeForce GTX 950 's Advantages

Released 3 years late

Boost Clock1188MHz

Lower TDP (90W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +107%

3.789 TFLOPS

GeForce GTX 950

1.825 TFLOPS

Radeon HD 7970 X2

VS

GeForce GTX 950

Graphics Card

Aug 2012

Release Date

Aug 2015

Southern 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

1375 MHz

Memory Clock

1653 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

105.8GB/s

Render Config

32

Compute Units

-

2048

Shading Units

768

128

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

38.02 GPixel/s

118.4 GTexel/s

Texture Rate

57.02 GTexel/s

-

3.789 TFLOPS

FP32 (float)

1.825 TFLOPS

947.2 GFLOPS

FP64 (double)

57.02 GFLOPS

Board Design

500W

TDP

90W

900 W

Suggested PSU

250 W

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

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

New Zealand

GPU Name

GM206

-

GPU Variant

GM206-250-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.94 billion

352 mm²

Die Size

228 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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