GeForce GTS 450 vs Radeon HD 7990

VS

NVIDIA GeForce GTS 450

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTS 450 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTS 450 Advantages

Lower TDP (106W vs 375W)

Radeon HD 7990 Advantages

Released 2 years and 7 months late

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 57.73GB/s)

1856 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTS 450

601

Radeon HD 7990 +581%

4096

GeForce GTS 450

VS

Radeon HD 7990

Graphics Card

Sep 2010

Release Date

Apr 2013

GeForce 400

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

902 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

57.73GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

4

SM Count

-

192

Shading Units

2048

32

TMUs

128

16

ROPs

32

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

6.264 GPixel/s

Pixel Rate

32.00 GPixel/s

25.06 GTexel/s

Texture Rate

128.0 GTexel/s

601.3 GFLOPS

FP32 (float)

4.096 TFLOPS

50.11 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

106W

TDP

375W

300 W

Suggested PSU

750 W

2x DVI
1x mini-HDMI 1.3a

Outputs

1x DVI
4x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GF106

GPU Name

Malta

GF106-250-KA-A1

GPU Variant

Malta XT

(215-0849026)

Fermi

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

4.313 billion

238 mm²

Die Size

365 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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