AMD Radeon R9 270 1024SP vs ATI Radeon HD 4860

VS

AMD Radeon R9 270 1024SP

ATI Radeon HD 4860

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 512MB VRAM Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 1024SP 's Advantages

Released 5 years and 6 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

384 additional rendering cores

ATI Radeon HD 4860 's Advantages

Lower TDP (130W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +111%

1.894 TFLOPS

Radeon HD 4860

0.896 TFLOPS

Radeon R9 270 1024SP

VS

Radeon HD 4860

Graphics Card

Mar 2015

Release Date

Sep 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

750 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

96.00GB/s

Render Config

16

Compute Units

8

-

1024

Shading Units

640

64

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

11.20 GPixel/s

59.20 GTexel/s

Texture Rate

22.40 GTexel/s

-

1.894 TFLOPS

FP32 (float)

896.0 GFLOPS

118.4 GFLOPS

FP64 (double)

179.2 GFLOPS

Board Design

150W

TDP

130W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

RV790

Pitcairn PRO (215-0828062)

GPU Variant

RV790 GT

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.959 billion

212 mm²

Die Size

282 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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