ATI Radeon HD 4580 vs ATI Radeon HD 3870

VS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4580 and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4580 's Advantages

Released 4 years late

Lower TDP (65W vs 106W)

ATI Radeon HD 3870 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 22.18GB/s)

200 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4580

0.191 TFLOPS

Radeon HD 3870 +160%

0.497 TFLOPS

Radeon HD 4580

VS

Radeon HD 3870

Graphics Card

Nov 2011

Release Date

Nov 2007

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

693 MHz

Memory Clock

1126 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR4

128bit

Memory Bus

256bit

22.18GB/s

Bandwidth

72.06GB/s

Render Config

-

SM Count

-

3

Compute Units

4

120

Shading Units

320

8

TMUs

16

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

128 KB

L2 Cache

256 KB

Theoretical Performance

3.184 GPixel/s

Pixel Rate

12.43 GPixel/s

6.368 GTexel/s

Texture Rate

12.43 GTexel/s

-

FP16 (half)

-

191.0 GFLOPS

FP32 (float)

497.3 GFLOPS

-

FP64 (double)

99.46 GFLOPS

Graphics Processor

RV635

GPU Name

RV670

RV635 PRO (215-0682008)

GPU Variant

RV670 XT (215-0708005)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.378 billion

Transistors

0.666 billion

135 mm²

Die Size

192 mm²

Board Design

65W

TDP

106W

250 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

N/A

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.1

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