AMD Radeon HD 8860 OEM vs AMD Radeon HD 7970

VS

AMD Radeon HD 8860 OEM AMD Radeon HD 7970

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8860 OEM and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8860 OEM 's Advantages

Released 1 years and 1 months late

Lower TDP (175W vs 250W)

AMD Radeon HD 7970 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 179.2GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8860 OEM

2.368 TFLOPS

Radeon HD 7970 +60%

3.789 TFLOPS

Radeon HD 8860 OEM

VS

Radeon HD 7970

Graphics Card

Jan 2013

Release Date

Dec 2011

Sea Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1400 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

179.2GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

20

Compute Units

32

1280

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

29.60 GPixel/s

74.00 GTexel/s

Texture Rate

118.4 GTexel/s

-

FP16 (half)

-

2.368 TFLOPS

FP32 (float)

3.789 TFLOPS

148.0 GFLOPS

FP64 (double)

947.2 GFLOPS

Graphics Processor

Curacao

GPU Name

Tahiti

Curacao PRO (215-0848000)

GPU Variant

Tahiti XT (215-0821060)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

4.313 billion

212 mm²

Die Size

352 mm²

Board Design

175W

TDP

250W

450 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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