AMD Radeon R7 265X OEM vs AMD Radeon HD 6870

VS

AMD Radeon R7 265X OEM

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM 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 R7 265X OEM 's Advantages

Released 3 years and 10 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 134.4GB/s)

160 additional rendering cores

Lower TDP (150W vs 151W)

Score

Benchmark

FP32 (float)

Radeon R7 265X OEM +17%

2.368 TFLOPS

Radeon HD 6870

2.016 TFLOPS

Radeon R7 265X OEM

VS

Radeon HD 6870

Graphics Card

Aug 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

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

134.4GB/s

Render Config

20

Compute Units

14

-

1280

Shading Units

1120

80

TMUs

56

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

28.80 GPixel/s

74.00 GTexel/s

Texture Rate

50.40 GTexel/s

-

2.368 TFLOPS

FP32 (float)

2.016 TFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Curacao

GPU Name

Barts

Curacao PRO (215-0848000)

GPU Variant

Barts XT (215-0798000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.7 billion

212 mm²

Die Size

255 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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