AMD Radeon R9 295X2 vs AMD Radeon HD 6870 1600SP Edition

VS

AMD Radeon R9 295X2 AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Released 1 years and 3 months late

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (320.0GB/s vs 134.4GB/s)

1216 additional rendering cores

AMD Radeon HD 6870 1600SP Edition 's Advantages

Lower TDP (175W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +110%

5.733 TFLOPS

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

Radeon R9 295X2

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Apr 2014

Release Date

Jan 2013

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

320.0GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

44

Compute Units

20

2816

Shading Units

1600

176

TMUs

80

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

65.15 GPixel/s

Pixel Rate

27.20 GPixel/s

179.2 GTexel/s

Texture Rate

68.00 GTexel/s

-

FP16 (half)

-

5.733 TFLOPS

FP32 (float)

2.720 TFLOPS

716.7 GFLOPS

FP64 (double)

544.0 GFLOPS

Graphics Processor

Vesuvius

GPU Name

Cypress

Vesuvius XT (215-0852022)

GPU Variant

Cypress XT (215-0735033)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

2.154 billion

438 mm²

Die Size

334 mm²

Board Design

500W

TDP

175W

900 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

5.0

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