AMD Radeon HD 7950 vs NVIDIA GeForce GTX 770

VS

AMD Radeon HD 7950

NVIDIA GeForce GTX 770

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 2GB VRAM GeForce GTX 770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 224.4GB/s)

256 additional rendering cores

Lower TDP (200W vs 230W)

NVIDIA GeForce GTX 770 's Advantages

Released 1 years and 4 months late

Boost Clock1085MHz

Score

Benchmark

FP32 (float)

Radeon HD 7950

2.867 TFLOPS

GeForce GTX 770 +16%

3.333 TFLOPS

3DMark Time Spy

Radeon HD 7950

1917

GeForce GTX 770 +11%

2135

Radeon HD 7950

VS

GeForce GTX 770

Graphics Card

Jan 2012

Release Date

May 2013

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1046 MHz

-

Boost Clock

1085 MHz

1250 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

224.4GB/s

Render Config

28

Compute Units

-

1792

Shading Units

1536

112

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

34.72 GPixel/s

89.60 GTexel/s

Texture Rate

138.9 GTexel/s

-

2.867 TFLOPS

FP32 (float)

3.333 TFLOPS

716.8 GFLOPS

FP64 (double)

138.9 GFLOPS

Board Design

200W

TDP

230W

550 W

Suggested PSU

550 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

GK104

Tahiti PRO (215-0821056)

GPU Variant

GK104-425-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

3.54 billion

352 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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