AMD Radeon HD 6850 1440SP Edition vs ATI Radeon HD 3850

VS

AMD Radeon HD 6850 1440SP Edition ATI Radeon HD 3850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 1440SP Edition and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 1440SP Edition 's Advantages

Released 4 years and 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 53.12GB/s)

1120 additional rendering cores

ATI Radeon HD 3850 's Advantages

Lower TDP (75W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 1440SP Edition +387%

2.088 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon HD 6850 1440SP Edition

VS

Radeon HD 3850

Graphics Card

Aug 2012

Release Date

Nov 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

830 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

53.12GB/s

Render Config

-

SM Count

-

18

Compute Units

4

1440

Shading Units

320

72

TMUs

16

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

Theoretical Performance

23.20 GPixel/s

Pixel Rate

10.69 GPixel/s

52.20 GTexel/s

Texture Rate

10.69 GTexel/s

-

FP16 (half)

-

2.088 TFLOPS

FP32 (float)

427.5 GFLOPS

417.6 GFLOPS

FP64 (double)

85.50 GFLOPS

Graphics Processor

Cypress

GPU Name

RV670

Cypress PRO (215-0735043)

GPU Variant

RV670 PRO (215-0708003)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.666 billion

334 mm²

Die Size

192 mm²

Board Design

151W

TDP

75W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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