NVIDIA GeForce GTX 980 vs AMD Radeon HD 8950 OEM

VS

NVIDIA GeForce GTX 980

AMD Radeon HD 8950 OEM

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 980 and 3GB VRAM Radeon HD 8950 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 's Advantages

Released 1 years and 8 months late

Boost Clock has increased by 31% (1216MHz vs 925MHz)

More VRAM (4GB vs 3GB)

256 additional rendering cores

Lower TDP (165W vs 200W)

AMD Radeon HD 8950 OEM 's Advantages

Larger VRAM bandwidth (240.0GB/s vs 224.4GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 980 +50%

4.981 TFLOPS

Radeon HD 8950 OEM

3.315 TFLOPS

GeForce GTX 980

VS

Radeon HD 8950 OEM

Graphics Card

Sep 2014

Release Date

Jan 2013

GeForce 900

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1127 MHz

Base Clock

850 MHz

1216 MHz

Boost Clock

925 MHz

1753 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

224.4GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

-

2048

Shading Units

1792

128

TMUs

112

64

ROPs

32

-

48 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

-

Theoretical Performance

77.82 GPixel/s

Pixel Rate

29.60 GPixel/s

155.6 GTexel/s

Texture Rate

103.6 GTexel/s

-

4.981 TFLOPS

FP32 (float)

3.315 TFLOPS

155.6 GFLOPS

FP64 (double)

828.8 GFLOPS

Board Design

165W

TDP

200W

450 W

Suggested PSU

550 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GM204

GPU Name

Tahiti

GM204-400-A1

GPU Variant

Tahiti PRO (215-0821056)

Maxwell 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5.2 billion

Transistors

4.313 billion

398 mm²

Die Size

352 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

5.2

CUDA

-

6.4

Shader Model

5.1

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