AMD Radeon HD 7950 Mac Edition vs NVIDIA GeForce GTX 275

VS

AMD Radeon HD 7950 Mac Edition

NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

Released 4 years and 2 months late

More VRAM (3GB vs 896GB)

Larger VRAM bandwidth (240.0GB/s vs 127.0GB/s)

1552 additional rendering cores

Lower TDP (200W vs 219W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +325%

2.867 TFLOPS

GeForce GTX 275

0.674 TFLOPS

Radeon HD 7950 Mac Edition

VS

GeForce GTX 275

Graphics Card

Mar 2013

Release Date

Jan 2009

Southern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1134 MHz

Memory

3GB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

448bit

240.0GB/s

Bandwidth

127.0GB/s

Render Config

28

Compute Units

-

SM Count

30

1792

Shading Units

240

112

TMUs

80

32

ROPs

28

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

224 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

17.72 GPixel/s

89.60 GTexel/s

Texture Rate

50.64 GTexel/s

-

2.867 TFLOPS

FP32 (float)

673.9 GFLOPS

716.8 GFLOPS

FP64 (double)

84.24 GFLOPS

Board Design

200W

TDP

219W

550 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

GT200B

Tahiti PRO (215-0821056)

GPU Variant

G200-105-B3

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

1.4 billion

352 mm²

Die Size

470 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

5.1

Shader Model

4.0

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