AMD Radeon R9 285 vs AMD Radeon HD 6870

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages

Released 3 years and 11 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (176.0GB/s vs 134.4GB/s)

672 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 285 +63%

3.29 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon R9 285

VS

Radeon HD 6870

Graphics Card

Sep 2014

Release Date

Oct 2010

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

28

Compute Units

14

1792

Shading Units

1120

112

TMUs

56

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

29.38 GPixel/s

Pixel Rate

28.80 GPixel/s

102.8 GTexel/s

Texture Rate

50.40 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

2.016 TFLOPS

205.6 GFLOPS

FP64 (double)

-

Graphics Processor

Tonga

GPU Name

Barts

Tonga PRO (215-0851128)

GPU Variant

Barts XT (215-0798000)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

1.7 billion

366 mm²

Die Size

255 mm²

Board Design

190W

TDP

151W

450 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

5.0

Related GPU Comparisons

1

AMD Radeon R9 285 vs NVIDIA GeForce GTX 780 6 GB

2

NVIDIA GeForce GTX 780 Rev. 2 vs AMD Radeon R9 285

3

AMD Radeon RX Vega 56 vs AMD Radeon R9 285

4

NVIDIA GeForce RTX 4060 vs AMD Radeon R9 285

5

NVIDIA GeForce 210 Rev. 2 vs AMD Radeon R9 285

6

AMD Radeon RX 6650 XT vs AMD Radeon R9 285

7

AMD Radeon R9 285 vs AMD FirePro W9100

8

AMD Radeon R9 285 vs ATI Radeon HD 2400 XT

9

AMD Radeon R9 285 vs NVIDIA GeForce GT 415 OEM

10

AMD Radeon R9 285 vs NVIDIA GeForce 8600 GTS Mac Edition

Related News

1

Concerns Raised by Unstable 13th/14th Gen Core CPUs: Motherboard Manufacturers Worry About Impact on Arrow Lake Release and Sales

2

Do You Really Know What a "Rendering Engine" Is? Read This Article to Understand All About It

3

New AMD Zen5 Ryzen 9000 Motherboards X870E/X870 to Adopt USB4! But You’ll Have to Wait Two More Months

4

Surpassing RTX 2050! Intel's Next-Gen Integrated Graphics Benchmark Closely Approaches AMD

5

New Benchmarks for AMD Ryzen AI 9 HX 370 Revealed: Single-Core Parity with R9 7945HX3D, Multi-Core Still Lower

6

X3D Performance Beyond Words! AMD Ryzen 7 9700X May Unlock Power Consumption: From 65W to 120W

7

First Benchmark Leak of Intel Core Ultra 7 268V: Single-Core Performance Soars by 20%, Still Lags Behind AMD

8

NVIDIA Grace CPU Benchmark Results Released, Stunning Performance

9

Minisforum Launches UM890 Pro Mini PC with R9 8945HS and Dual USB4 Ports

10

Does the Apple A18 Neural Engine Boast Superior Performance? Computational Power May Surpass M4 Chip