AMD Radeon HD 6990 vs ATI Radeon HD 2600 PRO

VS

AMD Radeon HD 6990 ATI Radeon HD 2600 PRO

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 256MB VRAM ATI Radeon HD 2600 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 3 years and 9 months late

Larger VRAM bandwidth (160.0GB/s vs 16.00GB/s)

1416 additional rendering cores

ATI Radeon HD 2600 PRO 's Advantages

Lower TDP (35W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +1670%

2.55 TFLOPS

ATI Radeon HD 2600 PRO

0.144 TFLOPS

Radeon HD 6990

VS

ATI Radeon HD 2600 PRO

Graphics Card

Mar 2011

Release Date

Jun 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

24

Compute Units

3

1536

Shading Units

120

96

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

2.400 GPixel/s

79.68 GTexel/s

Texture Rate

4.800 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

144.0 GFLOPS

637.4 GFLOPS

FP64 (double)

-

Graphics Processor

Antilles

GPU Name

RV630

Antilles XT (215-0807027)

GPU Variant

RV630 PRO (215CDBBKA15FG)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

2.64 billion

Transistors

0.39 billion

389 mm²

Die Size

153 mm²

Board Design

375W

TDP

35W

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.0

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