AMD Radeon R7 265X OEM vs ATI Radeon HD 3870 X2

VS

AMD Radeon R7 265X OEM

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM and 512MB VRAM Radeon HD 3870 X2 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 6 years and 7 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 57.66GB/s)

960 additional rendering cores

Lower TDP (150W vs 165W)

Score

Benchmark

FP32 (float)

Radeon R7 265X OEM +348%

2.368 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

Radeon R7 265X OEM

VS

Radeon HD 3870 X2

Graphics Card

Aug 2014

Release Date

Jan 2008

Volcanic Islands

Generation

Radeon R600

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

901 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

57.66GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

13.20 GPixel/s

74.00 GTexel/s

Texture Rate

13.20 GTexel/s

-

2.368 TFLOPS

FP32 (float)

528.0 GFLOPS

148.0 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

150W

TDP

165W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Curacao

GPU Name

R680

Curacao PRO (215-0848000)

GPU Variant

R680 XT (215-0708017)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.666 billion

212 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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