AMD Radeon HD 8990 OEM vs AMD Radeon HD 6850

VS

AMD Radeon HD 8990 OEM AMD Radeon HD 6850

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 1024MB VRAM Radeon HD 6850 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 2 years and 6 months late

Boost Clock1000MHz

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (288.0GB/s vs 128.0GB/s)

1088 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM +175%

4.096 TFLOPS

Radeon HD 6850

1.488 TFLOPS

Radeon HD 8990 OEM

VS

Radeon HD 6850

Graphics Card

Apr 2013

Release Date

Oct 2010

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

32

Compute Units

12

2048

Shading Units

960

128

TMUs

48

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

24.80 GPixel/s

128.0 GTexel/s

Texture Rate

37.20 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

1488 GFLOPS

1024 GFLOPS

FP64 (double)

-

Graphics Processor

Malta

GPU Name

Barts

Malta XT (215-0849026)

GPU Variant

Barts PRO (215-0798006)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.7 billion

365 mm²

Die Size

255 mm²

Board Design

375W

TDP

127W

750 W

Suggested PSU

300 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

1x 6-pin

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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