AMD Radeon HD 6850 X2 vs NVIDIA GeForce GTX TITAN Z

VS

AMD Radeon HD 6850 X2 NVIDIA GeForce GTX TITAN Z

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 6GB VRAM GeForce GTX TITAN Z to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 375W)

NVIDIA GeForce GTX TITAN Z 's Advantages

Released 2 years and 8 months late

Boost Clock876MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.0GB/s vs 134.4GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

GeForce GTX TITAN Z +228%

5.046 TFLOPS

Radeon HD 6850 X2

VS

GeForce GTX TITAN Z

Graphics Card

Sep 2011

Release Date

May 2014

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

705 MHz

-

Boost Clock

876 MHz

1050 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

336.0GB/s

Render Config

-

SM Count

-

12

Compute Units

-

960

Shading Units

2880

48

TMUs

240

32

ROPs

48

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

52.56 GPixel/s

38.40 GTexel/s

Texture Rate

210.2 GTexel/s

-

FP16 (half)

-

1.536 TFLOPS

FP32 (float)

5.046 TFLOPS

-

FP64 (double)

1.682 TFLOPS

Graphics Processor

Barts

GPU Name

GK110B

Barts PRO (215-0798006)

GPU Variant

GK110-350-B1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

7.08 billion

255 mm²

Die Size

561 mm²

Board Design

254W

TDP

375W

600 W

Suggested PSU

750 W

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

Outputs

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

2x 8-pin

Power Connectors

2x 8-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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