AMD Radeon HD 7990 vs NVIDIA GeForce GTX 970

VS

AMD Radeon HD 7990

NVIDIA GeForce GTX 970

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 4GB VRAM GeForce GTX 970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Larger VRAM bandwidth (288.0GB/s vs 224.4GB/s)

384 additional rendering cores

NVIDIA GeForce GTX 970 's Advantages

Released 1 years and 5 months late

Boost Clock has increased by 18% (1178MHz vs 1000MHz)

More VRAM (4GB vs 3GB)

Lower TDP (148W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +4%

4.096 TFLOPS

GeForce GTX 970

3.92 TFLOPS

Radeon HD 7990

VS

GeForce GTX 970

Graphics Card

Apr 2013

Release Date

Sep 2014

Southern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

1050 MHz

1000 MHz

Boost Clock

1178 MHz

1500 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

224.4GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1664

128

TMUs

104

32

ROPs

56

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

65.97 GPixel/s

128.0 GTexel/s

Texture Rate

122.5 GTexel/s

-

4.096 TFLOPS

FP32 (float)

3.920 TFLOPS

1024 GFLOPS

FP64 (double)

122.5 GFLOPS

Board Design

375W

TDP

148W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Malta

GPU Name

GM204

Malta XT (215-0849026)

GPU Variant

GM204-200-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5.2 billion

365 mm²

Die Size

398 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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