ATI Radeon HD 5970 vs ATI Radeon HD 3850

VS

ATI Radeon HD 5970

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

Released 2 years late

More VRAM (1024GB vs 512GB)

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

1280 additional rendering cores

ATI Radeon HD 3850 's Advantages

Lower TDP (75W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +442%

2.32 TFLOPS

Radeon HD 3850

0.428 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 3850

Graphics Card

Nov 2009

Release Date

Nov 2007

Evergreen

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

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

20

Compute Units

4

-

1600

Shading Units

320

80

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

10.69 GPixel/s

58.00 GTexel/s

Texture Rate

10.69 GTexel/s

-

2.320 TFLOPS

FP32 (float)

427.5 GFLOPS

464.0 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

294W

TDP

75W

600 W

Suggested PSU

250 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Hemlock

GPU Name

RV670

Hemlock XT (215-0735075)

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

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

-

5.0

Shader Model

4.1

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