AMD Radeon R9 270X vs AMD Radeon HD 7850

VS

AMD Radeon R9 270X

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Released 1 years and 7 months late

Boost Clock1050MHz

Larger VRAM bandwidth (179.2GB/s vs 153.6GB/s)

256 additional rendering cores

AMD Radeon HD 7850 's Advantages

Lower TDP (130W vs 180W)

Score

Benchmark

FP32 (float)

Radeon R9 270X +52%

2.688 TFLOPS

Radeon HD 7850

1.761 TFLOPS

3DMark Time Spy

Radeon R9 270X +34%

1769

Radeon HD 7850

1312

Radeon R9 270X

VS

Radeon HD 7850

Graphics Card

Oct 2013

Release Date

Mar 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

153.6GB/s

Render Config

20

Compute Units

16

-

1280

Shading Units

1024

80

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

27.52 GPixel/s

84.00 GTexel/s

Texture Rate

55.04 GTexel/s

-

2.688 TFLOPS

FP32 (float)

1.761 TFLOPS

168.0 GFLOPS

FP64 (double)

110.1 GFLOPS

Board Design

180W

TDP

130W

450 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Curacao

GPU Name

Pitcairn

Curacao XT (215-0848004)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

2.8 billion

212 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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