NVIDIA GeForce GTX 650 vs AMD Radeon HD 7990

VS

NVIDIA GeForce GTX 650

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 's Advantages

Lower TDP (65W vs 375W)

AMD Radeon HD 7990 's Advantages

Released 7 months late

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 80.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 650

0.812 TFLOPS

Radeon HD 7990 +404%

4.096 TFLOPS

GeForce GTX 650

VS

Radeon HD 7990

Graphics Card

Sep 2012

Release Date

Apr 2013

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

80.00GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

-

384

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

32.00 GPixel/s

33.86 GTexel/s

Texture Rate

128.0 GTexel/s

-

812.5 GFLOPS

FP32 (float)

4.096 TFLOPS

33.86 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

65W

TDP

375W

250 W

Suggested PSU

750 W

2x DVI 1x mini-HDMI 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK107

GPU Name

Malta

GK107-450-A2

GPU Variant

Malta XT (215-0849026)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

4.313 billion

118 mm²

Die Size

365 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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