ATI Radeon HD 4860 vs ATI Radeon HD 3830

VS

ATI Radeon HD 4860

ATI Radeon HD 3830

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4860 and 256MB VRAM Radeon HD 3830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4860 's Advantages

Released 1 years and 5 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (96.00GB/s vs 26.50GB/s)

320 additional rendering cores

ATI Radeon HD 3830 's Advantages

Lower TDP (75W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 4860 +109%

0.896 TFLOPS

Radeon HD 3830

0.428 TFLOPS

Radeon HD 4860

VS

Radeon HD 3830

Graphics Card

Sep 2009

Release Date

Apr 2008

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

828 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

96.00GB/s

Bandwidth

26.50GB/s

Render Config

8

Compute Units

4

-

640

Shading Units

320

32

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

128 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

10.69 GPixel/s

22.40 GTexel/s

Texture Rate

10.69 GTexel/s

-

896.0 GFLOPS

FP32 (float)

427.5 GFLOPS

179.2 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

130W

TDP

75W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

No outputs

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV790

GPU Name

RV670

RV790 GT

GPU Variant

RV670 PRO (215-0708003)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.959 billion

Transistors

0.666 billion

282 mm²

Die Size

192 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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