AMD Radeon HD 7990 vs NVIDIA GeForce GTX 950 Low Power

VS

AMD Radeon HD 7990

NVIDIA GeForce GTX 950 Low Power

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 2GB VRAM GeForce GTX 950 Low Power to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 105.8GB/s)

1280 additional rendering cores

NVIDIA GeForce GTX 950 Low Power 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 19% (1190MHz vs 1000MHz)

Lower TDP (75W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +124%

4.096 TFLOPS

GeForce GTX 950 Low Power

1.828 TFLOPS

Radeon HD 7990

VS

GeForce GTX 950 Low Power

Graphics Card

Apr 2013

Release Date

Mar 2016

Southern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

1026 MHz

1000 MHz

Boost Clock

1190 MHz

1500 MHz

Memory Clock

1653 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

105.8GB/s

Render Config

32

Compute Units

-

2048

Shading Units

768

128

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

38.08 GPixel/s

128.0 GTexel/s

Texture Rate

57.12 GTexel/s

-

4.096 TFLOPS

FP32 (float)

1.828 TFLOPS

1024 GFLOPS

FP64 (double)

57.12 GFLOPS

Board Design

375W

TDP

75W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Processor

Malta

GPU Name

GM206

Malta XT (215-0849026)

GPU Variant

GM206-251-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.94 billion

365 mm²

Die Size

228 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

5.1

Shader Model

6.4

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