AMD Radeon HD 6950 vs AMD Radeon HD 6990

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Lower TDP (200W vs 375W)

AMD Radeon HD 6990 's Advantages

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6950

2.253 TFLOPS

Radeon HD 6990 +13%

2.55 TFLOPS

Radeon HD 6950

VS

Radeon HD 6990

Graphics Card

Dec 2010

Release Date

Mar 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

-

22

Compute Units

24

1408

Shading Units

1536

88

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

25.60 GPixel/s

Pixel Rate

26.56 GPixel/s

70.40 GTexel/s

Texture Rate

79.68 GTexel/s

-

FP16 (half)

-

2.253 TFLOPS

FP32 (float)

2.550 TFLOPS

563.2 GFLOPS

FP64 (double)

637.4 GFLOPS

Graphics Processor

Cayman

GPU Name

Antilles

Cayman PRO (215-0807019)

GPU Variant

Antilles XT (215-0807027)

TeraScale 3

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

2.64 billion

389 mm²

Die Size

389 mm²

Board Design

200W

TDP

375W

550 W

Suggested PSU

750 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 6-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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