NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon HD 7990

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition 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 275 PhysX Edition 's Advantages

Lower TDP (219W vs 375W)

AMD Radeon HD 7990 's Advantages

Released 3 years and 2 months late

Boost Clock1000MHz

More VRAM (3GB vs 896GB)

Larger VRAM bandwidth (288.0GB/s vs 127.0GB/s)

1808 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 7990 +558%

4.096 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 7990

Graphics Card

Feb 2010

Release Date

Apr 2013

GeForce 200

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

1134 MHz

Memory Clock

1500 MHz

Memory

896MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

384bit

127.0GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

30

SM Count

-

240

Shading Units

2048

80

TMUs

128

28

ROPs

32

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

768 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

32.00 GPixel/s

50.64 GTexel/s

Texture Rate

128.0 GTexel/s

-

622.1 GFLOPS

FP32 (float)

4.096 TFLOPS

77.76 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

219W

TDP

375W

550 W

Suggested PSU

750 W

2x DVI

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

G92B

GPU Name

Malta

G92-421-B1

GPU Variant

Malta XT (215-0849026)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.754 billion

Transistors

4.313 billion

260 mm²

Die Size

365 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

5.1

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