AMD Radeon HD 6850 X2 vs NVIDIA GeForce GTX 950

VS

AMD Radeon HD 6850 X2

NVIDIA GeForce GTX 950

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 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 6850 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 105.8GB/s)

192 additional rendering cores

NVIDIA GeForce GTX 950 's Advantages

Released 3 years and 11 months late

Boost Clock1188MHz

Lower TDP (90W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

GeForce GTX 950 +18%

1.825 TFLOPS

Radeon HD 6850 X2

VS

GeForce GTX 950

Graphics Card

Sep 2011

Release Date

Aug 2015

Northern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1024 MHz

-

Boost Clock

1188 MHz

1050 MHz

Memory Clock

1653 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

105.8GB/s

Render Config

12

Compute Units

-

960

Shading Units

768

48

TMUs

48

32

ROPs

32

-

8 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

38.02 GPixel/s

38.40 GTexel/s

Texture Rate

57.02 GTexel/s

-

1.536 TFLOPS

FP32 (float)

1.825 TFLOPS

-

FP64 (double)

57.02 GFLOPS

Board Design

254W

TDP

90W

600 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

GM206

Barts PRO (215-0798006)

GPU Variant

GM206-250-A1

TeraScale 2

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.94 billion

255 mm²

Die Size

228 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.2

5.0

Shader Model

6.4

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