AMD Radeon HD 6850 X2 vs NVIDIA GeForce GTX 780 Ti Engineering Sample

VS

AMD Radeon HD 6850 X2 NVIDIA GeForce GTX 780 Ti Engineering Sample

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 3GB VRAM GeForce GTX 780 Ti Engineering Sample to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Ti Engineering Sample 's Advantages

Boost Clock928MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 134.4GB/s)

1920 additional rendering cores

Lower TDP (250W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

GeForce GTX 780 Ti Engineering Sample +247%

5.345 TFLOPS

Radeon HD 6850 X2

VS

GeForce GTX 780 Ti Engineering Sample

Graphics Card

Sep 2011

Release Date

Unknown

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1050 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

336.6GB/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

55.68 GPixel/s

38.40 GTexel/s

Texture Rate

222.7 GTexel/s

-

FP16 (half)

-

1.536 TFLOPS

FP32 (float)

5.345 TFLOPS

-

FP64 (double)

222.7 GFLOPS

Graphics Processor

Barts

GPU Name

GK180

Barts PRO (215-0798006)

GPU Variant

GK180-425-A1

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

250W

600 W

Suggested PSU

600 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

1x 6-pin + 1x 8-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.2.175

-

CUDA

3.5

5.0

Shader Model

5.1

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