AMD Radeon HD 6870 1600SP Edition vs AMD Radeon HD 7950 Monica BIOS 2

VS

AMD Radeon HD 6870 1600SP Edition

AMD Radeon HD 7950 Monica BIOS 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 3GB VRAM Radeon HD 7950 Monica BIOS 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 1 years late

832 additional rendering cores

AMD Radeon HD 7950 Monica BIOS 2 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 134.4GB/s)

Lower TDP (85W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +121%

2.72 TFLOPS

Radeon HD 7950 Monica BIOS 2

1.229 TFLOPS

Radeon HD 6870 1600SP Edition

VS

Radeon HD 7950 Monica BIOS 2

Graphics Card

Jan 2013

Release Date

Jan 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

240.0GB/s

Render Config

20

Compute Units

12

-

1600

Shading Units

768

80

TMUs

48

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

25.60 GPixel/s

68.00 GTexel/s

Texture Rate

38.40 GTexel/s

-

2.720 TFLOPS

FP32 (float)

1229 GFLOPS

544.0 GFLOPS

FP64 (double)

307.2 GFLOPS

Board Design

175W

TDP

85W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cypress

GPU Name

Tahiti

Cypress XT (215-0735033)

GPU Variant

Tahiti PRO (215-0821056)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

4.313 billion

334 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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