AMD Radeon HD 7950 vs NVIDIA GeForce GTX 780 Ti Engineering Sample

VS

AMD Radeon HD 7950

NVIDIA GeForce GTX 780 Ti Engineering Sample

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 3GB VRAM GeForce GTX 780 Ti Engineering Sample to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Lower TDP (200W vs 250W)

NVIDIA GeForce GTX 780 Ti Engineering Sample 's Advantages

Boost Clock928MHz

Larger VRAM bandwidth (336.6GB/s vs 240.0GB/s)

1088 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950

2.867 TFLOPS

GeForce GTX 780 Ti Engineering Sample +86%

5.345 TFLOPS

Radeon HD 7950

VS

GeForce GTX 780 Ti Engineering Sample

Graphics Card

Jan 2012

Release Date

Unknown

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1250 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

336.6GB/s

Render Config

28

Compute Units

-

1792

Shading Units

2880

112

TMUs

240

32

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

1536 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

55.68 GPixel/s

89.60 GTexel/s

Texture Rate

222.7 GTexel/s

-

2.867 TFLOPS

FP32 (float)

5.345 TFLOPS

716.8 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

200W

TDP

250W

550 W

Suggested PSU

600 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

GK180

Tahiti PRO (215-0821056)

GPU Variant

GK180-425-A1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

7.08 billion

352 mm²

Die Size

561 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.2.175

-

CUDA

3.5

5.1

Shader Model

5.1

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