GPU Comparison

A

AMD

RADEON

AMD Radeon HD 7950

CORE STATE Tahiti

VRAM 3 GB

CLOCK SPEED —

TDP 200 W

BUS WIDTH 384 bit

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

A

AMD

RADEON

Radeon RX 580

CORE STATE Polaris 20

VRAM 8 GB

CLOCK SPEED 1340 MHz

TDP 185 W

BUS WIDTH 256 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2017

PERFORMANCE BENCHMARKS

geekbench_metal

34,050

52,176

3dmark_3dmark_steel_nomad_dx12

N/A

1,005

geekbench_opencl

N/A

37,453

geekbench_vulkan

N/A

45,173

passmark_directx_10

N/A

46

passmark_directx_11

N/A

60

passmark_directx_12

N/A

43

passmark_directx_9

N/A

124

passmark_g2d

N/A

769

passmark_g3d

N/A

8,813

passmark_gpu_compute

N/A

3,488

DETAILED SPECIFICATIONS

SPECIFICATION

HD 7950

RX 580

Core Specs

Shading Units

1,792

2,304 +28.6%

Shaders

1,792

2,304 +28.6%

TMUs

112

144 +28.6%

ROPs

32

32 0.0%

Compute Units

28

36 +28.6%

Clocks

Base Clock

—

1257 MHz

Boost Clock

—

1340 MHz

GPU Clock

800 MHz

—

Memory Clock

1250 MHz 5 Gbps effective

2000 MHz 8 Gbps effective

Memory

Memory Size

3 GB

8 GB

VRAM (MB)

3,072

8,192 +166.7%

Memory Type

GDDR5

GDDR5

Memory Bus

384 bit

256 bit

Bandwidth

240.0 GB/s

256.0 GB/s

Cache

L1 Cache

16 KB (per CU)

16 KB (per CU)

L2 Cache

768 KB

2 MB

Performance

Pixel Rate

25.60 GPixel/s

42.88 GPixel/s

Texture Rate

89.60 GTexel/s

193.0 GTexel/s

FP32 (TFLOPS)

2.867 TFLOPS

6.175 TFLOPS

FP64 (TFLOPS)

716.8 GFLOPS (1:4)

385.9 GFLOPS (1:16)

FP16 (TFLOPS)

—

6.175 TFLOPS (1:1)

Power

TDP

200 W

185 W

TDP (W)

200

185 -7.5%

Suggested PSU

550 W

450 W

Power Connectors

2x 6-pin

1x 8-pin

Architecture

Architecture

GCN 1.0

GCN 4.0

GPU Name

Tahiti

Polaris 20

Generation

Southern Islands (HD 7900)

Polaris (RX 500)

Process Size

28 nm

14 nm

Transistors

4,313 million

5,700 million

Die Size

352 mm²

232 mm²

Foundry

TSMC

GlobalFoundries

Density

12.3M / mm²

24.6M / mm²

API Support

DirectX

12 (11_1)

12 (12_0)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.3

OpenCL

2.1 (1.2)

2.1

Shader Model

6.5 (5.1)

6.7

Physical

Slot Width

Dual-slot

Dual-slot

Length

278 mm 10.9 inches

241 mm 9.5 inches

Height

111 mm 4.4 inches

—

Outputs

1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x16

PCIe 3.0 x16

Other

Launch Price

449 USD

229 USD

Production

End-of-life

End-of-life

Predecessor

Northern Islands

Arctic Islands

Successor

Sea Islands

Vega

View Radeon HD 7950 Details View Radeon RX 580 Details