ATI Radeon HD 4890 vs AMD Radeon HD 6870 1600SP Edition

VS

ATI Radeon HD 4890

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 3 years and 9 months late

Larger VRAM bandwidth (134.4GB/s vs 124.8GB/s)

800 additional rendering cores

Lower TDP (175W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890

1.36 TFLOPS

Radeon HD 6870 1600SP Edition +100%

2.72 TFLOPS

Radeon HD 4890

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Apr 2009

Release Date

Jan 2013

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

975 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

124.8GB/s

Bandwidth

134.4GB/s

Render Config

10

Compute Units

20

-

800

Shading Units

1600

40

TMUs

80

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

27.20 GPixel/s

34.00 GTexel/s

Texture Rate

68.00 GTexel/s

-

1360 GFLOPS

FP32 (float)

2.720 TFLOPS

272.0 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

190W

TDP

175W

450 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV790

GPU Name

Cypress

RV790 XT (215-0758016)

GPU Variant

Cypress XT (215-0735033)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.959 billion

Transistors

2.154 billion

282 mm²

Die Size

334 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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