AMD Radeon HD 7990 vs NVIDIA GeForce GTS 450

VS

AMD Radeon HD 7990 NVIDIA GeForce GTS 450

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

Main Differences

AMD Radeon HD 7990 's Advantages

Released 2 years and 7 months late

Boost Clock1000MHz

More VRAM (3GB vs 1GB)

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

1856 additional rendering cores

NVIDIA GeForce GTS 450 's Advantages

Lower TDP (106W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +581%

4.096 TFLOPS

GeForce GTS 450

0.601 TFLOPS

Radeon HD 7990

VS

GeForce GTS 450

Graphics Card

Apr 2013

Release Date

Sep 2010

Southern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

902 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

57.73GB/s

Render Config

-

SM Count

4

32

Compute Units

-

2048

Shading Units

192

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

256 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

6.264 GPixel/s

128.0 GTexel/s

Texture Rate

25.06 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

601.3 GFLOPS

1024 GFLOPS

FP64 (double)

50.11 GFLOPS

Graphics Processor

Malta

GPU Name

GF106

Malta XT (215-0849026)

GPU Variant

GF106-250-KA-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.17 billion

365 mm²

Die Size

238 mm²

Board Design

375W

TDP

106W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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