AMD Radeon HD 7970 X2 vs AMD Radeon HD 8990 OEM

VS

AMD Radeon HD 7970 X2 AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8990 OEM 's Advantages

Released 8 months late

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 264.0GB/s)

Lower TDP (375W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2

3.789 TFLOPS

Radeon HD 8990 OEM +8%

4.096 TFLOPS

Radeon HD 7970 X2

VS

Radeon HD 8990 OEM

Graphics Card

Aug 2012

Release Date

Apr 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

264.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

32

Compute Units

32

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

32.00 GPixel/s

118.4 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

4.096 TFLOPS

947.2 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

New Zealand

GPU Name

Malta

-

GPU Variant

Malta XT (215-0849026)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

365 mm²

Board Design

500W

TDP

375W

900 W

Suggested PSU

750 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

3x 8-pin

Power Connectors

2x 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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