AMD Radeon HD 6990 vs NVIDIA GeForce GTX 950 OEM

VS

AMD Radeon HD 6990

NVIDIA GeForce GTX 950 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 4GB VRAM GeForce GTX 950 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 80.19GB/s)

512 additional rendering cores

NVIDIA GeForce GTX 950 OEM 's Advantages

Released 4 years and 10 months late

Boost Clock1203MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +3%

2.55 TFLOPS

GeForce GTX 950 OEM

2.464 TFLOPS

Radeon HD 6990

VS

GeForce GTX 950 OEM

Graphics Card

Mar 2011

Release Date

Jan 2016

Northern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

937 MHz

-

Boost Clock

1203 MHz

1250 MHz

Memory Clock

1253 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

80.19GB/s

Render Config

24

Compute Units

-

1536

Shading Units

1024

96

TMUs

64

32

ROPs

32

-

8 KB (per CU)

L1 Cache

48 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

38.50 GPixel/s

79.68 GTexel/s

Texture Rate

76.99 GTexel/s

-

2.550 TFLOPS

FP32 (float)

2.464 TFLOPS

637.4 GFLOPS

FP64 (double)

76.99 GFLOPS

Board Design

375W

TDP

Unknown

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

No outputs

2x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

GM206S

Antilles XT (215-0807027)

GPU Variant

950 OEM

TeraScale 3

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

2.94 billion

389 mm²

Die Size

228 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.2

5.0

Shader Model

6.7

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