AMD Radeon HD 7990 vs NVIDIA GeForce GTX 780 Ti 6 GB

VS

AMD Radeon HD 7990 NVIDIA GeForce GTX 780 Ti 6 GB

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 6GB VRAM GeForce GTX 780 Ti 6 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Boost Clock has increased by 8% (1000MHz vs 928MHz)

NVIDIA GeForce GTX 780 Ti 6 GB 's Advantages

More VRAM (6GB vs 3GB)

Larger VRAM bandwidth (336.6GB/s vs 288.0GB/s)

832 additional rendering cores

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

GeForce GTX 780 Ti 6 GB +30%

5.345 TFLOPS

Radeon HD 7990

VS

GeForce GTX 780 Ti 6 GB

Graphics Card

Apr 2013

Release Date

Unknown

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

875 MHz

1000 MHz

Boost Clock

928 MHz

1500 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

336.6GB/s

Render Config

-

SM Count

-

32

Compute Units

-

2048

Shading Units

2880

128

TMUs

240

32

ROPs

48

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

1536 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

55.68 GPixel/s

128.0 GTexel/s

Texture Rate

222.7 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

5.345 TFLOPS

1024 GFLOPS

FP64 (double)

222.7 GFLOPS

Graphics Processor

Malta

GPU Name

GK110B

Malta XT (215-0849026)

GPU Variant

-

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

7.08 billion

365 mm²

Die Size

561 mm²

Board Design

375W

TDP

250W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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