AMD Radeon HD 6850 vs NVIDIA GeForce GTX 680

VS

AMD Radeon HD 6850

NVIDIA GeForce GTX 680

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 2GB VRAM GeForce GTX 680 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 195W)

NVIDIA GeForce GTX 680 's Advantages

Released 1 years and 5 months late

Boost Clock1058MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.3GB/s vs 128.0GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850

1.488 TFLOPS

GeForce GTX 680 +118%

3.25 TFLOPS

Radeon HD 6850

VS

GeForce GTX 680

Graphics Card

Oct 2010

Release Date

Mar 2012

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

1000 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

192.3GB/s

Render Config

12

Compute Units

-

960

Shading Units

1536

48

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

33.86 GPixel/s

37.20 GTexel/s

Texture Rate

135.4 GTexel/s

-

1488 GFLOPS

FP32 (float)

3.250 TFLOPS

-

FP64 (double)

135.4 GFLOPS

Board Design

127W

TDP

195W

300 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

GK104

Barts PRO (215-0798006)

GPU Variant

GK104-400-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

3.54 billion

255 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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