AMD Radeon HD 7990 vs NVIDIA GeForce GTX 650 Ti Boost

VS

AMD Radeon HD 7990

NVIDIA GeForce GTX 650 Ti Boost

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 2GB VRAM GeForce GTX 650 Ti Boost 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 144.2GB/s)

1280 additional rendering cores

NVIDIA GeForce GTX 650 Ti Boost 's Advantages

Boost Clock has increased by 3% (1032MHz vs 1000MHz)

Lower TDP (134W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +158%

4.096 TFLOPS

GeForce GTX 650 Ti Boost

1.585 TFLOPS

Radeon HD 7990

VS

GeForce GTX 650 Ti Boost

Graphics Card

Apr 2013

Release Date

Mar 2013

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

980 MHz

1000 MHz

Boost Clock

1032 MHz

1500 MHz

Memory Clock

1502 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

192bit

288.0GB/s

Bandwidth

144.2GB/s

Render Config

32

Compute Units

-

2048

Shading Units

768

128

TMUs

64

32

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

384 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

16.51 GPixel/s

128.0 GTexel/s

Texture Rate

66.05 GTexel/s

-

4.096 TFLOPS

FP32 (float)

1.585 TFLOPS

1024 GFLOPS

FP64 (double)

66.05 GFLOPS

Board Design

375W

TDP

134W

750 W

Suggested PSU

300 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

Graphics Processor

Malta

GPU Name

GK106

Malta XT (215-0849026)

GPU Variant

GK106-240-A1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.54 billion

365 mm²

Die Size

221 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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