ATI Radeon HD 5870 vs AMD Radeon R9 255 OEM

VS

ATI Radeon HD 5870 AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5870 and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5870 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 73.60GB/s)

1088 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Released 4 years and 3 months late

Boost Clock930MHz

More VRAM (2GB vs 1GB)

Lower TDP (65W vs 188W)

Score

Benchmark

FP32 (float)

Radeon HD 5870 +185%

2.72 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

Radeon HD 5870

VS

Radeon R9 255 OEM

Graphics Card

Sep 2009

Release Date

Dec 2013

Evergreen

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

1200 MHz

Memory Clock

1150 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

20

Compute Units

8

1600

Shading Units

512

80

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

14.88 GPixel/s

68.00 GTexel/s

Texture Rate

29.76 GTexel/s

-

FP16 (half)

-

2.720 TFLOPS

FP32 (float)

952.3 GFLOPS

544.0 GFLOPS

FP64 (double)

59.52 GFLOPS

Graphics Processor

Cypress

GPU Name

Cape Verde

Cypress XT (215-0735033)

GPU Variant

Cape Verde PRX

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

1.5 billion

334 mm²

Die Size

123 mm²

Board Design

188W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

No outputs

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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