AMD Radeon HD 7970 vs AMD Radeon R7 350 640SP

VS

AMD Radeon HD 7970

AMD Radeon R7 350 640SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 2GB VRAM Radeon R7 350 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 72.00GB/s)

1408 additional rendering cores

AMD Radeon R7 350 640SP 's Advantages

Released 7 years and 1 months late

Lower TDP (55W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +220%

3.789 TFLOPS

Radeon R7 350 640SP

1.184 TFLOPS

Radeon HD 7970

VS

Radeon R7 350 640SP

Graphics Card

Dec 2011

Release Date

Jan 2019

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1125 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

72.00GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

14.80 GPixel/s

118.4 GTexel/s

Texture Rate

37.00 GTexel/s

-

3.789 TFLOPS

FP32 (float)

1184 GFLOPS

947.2 GFLOPS

FP64 (double)

74.00 GFLOPS

Board Design

250W

TDP

55W

600 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Cape Verde

Tahiti XT (215-0821060)

GPU Variant

Cape Verde XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.5 billion

352 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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