AMD Radeon HD 6990 vs AMD Radeon R7 250 OEM

VS

AMD Radeon HD 6990 AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 2GB VRAM Radeon R7 250 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 32.00GB/s)

1152 additional rendering cores

AMD Radeon R7 250 OEM 's Advantages

Released 2 years and 7 months late

Boost Clock1050MHz

Lower TDP (65W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +216%

2.55 TFLOPS

Radeon R7 250 OEM

0.806 TFLOPS

Radeon HD 6990

VS

Radeon R7 250 OEM

Graphics Card

Mar 2011

Release Date

Oct 2013

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

1250 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

32.00GB/s

Render Config

-

SM Count

-

24

Compute Units

6

1536

Shading Units

384

96

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

8.400 GPixel/s

79.68 GTexel/s

Texture Rate

25.20 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

806.4 GFLOPS

637.4 GFLOPS

FP64 (double)

50.40 GFLOPS

Graphics Processor

Antilles

GPU Name

Oland

Antilles XT (215-0807027)

GPU Variant

Oland XT (215-0837000)

TeraScale 3

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

0.95 billion

389 mm²

Die Size

77 mm²

Board Design

375W

TDP

65W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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