ATI Radeon HD 5970 vs AMD Radeon HD 6990

VS

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

64 additional rendering cores

Lower TDP (294W vs 375W)

AMD Radeon HD 6990 's Advantages

Released 1 years and 4 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 128.0GB/s)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970

2.32 TFLOPS

Radeon HD 6990 +9%

2.55 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 6990

Graphics Card

Nov 2009

Release Date

Mar 2011

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

-

20

Compute Units

24

1600

Shading Units

1536

80

TMUs

96

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

23.20 GPixel/s

Pixel Rate

26.56 GPixel/s

58.00 GTexel/s

Texture Rate

79.68 GTexel/s

-

FP16 (half)

-

2.320 TFLOPS

FP32 (float)

2.550 TFLOPS

464.0 GFLOPS

FP64 (double)

637.4 GFLOPS

Graphics Processor

Hemlock

GPU Name

Antilles

Hemlock XT (215-0735075)

GPU Variant

Antilles XT (215-0807027)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

2.64 billion

334 mm²

Die Size

389 mm²

Board Design

294W

TDP

375W

600 W

Suggested PSU

750 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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