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

NVIDIA

GEFORCE

GeForce GTX 980

CORE STATE GM204

VRAM 4 GB

CLOCK SPEED 1216 MHz

TDP 165 W

BUS WIDTH 256 bit

ARCHITECTURE Maxwell 2.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

PERFORMANCE BENCHMARKS

geekbench_metal

34,050

15,163

3dmark_3dmark_steel_nomad_dx12

N/A

474

geekbench_opencl

N/A

33,457

geekbench_vulkan

N/A

38,172

passmark_directx_10

N/A

53

passmark_directx_11

N/A

83

passmark_directx_12

N/A

46

passmark_directx_9

N/A

164

passmark_g2d

N/A

792

passmark_g3d

N/A

11,095

passmark_gpu_compute

N/A

4,753

DETAILED SPECIFICATIONS

SPECIFICATION

HD 7950

GTX 980

Core Specs

Shading Units

1,792

2,048 +14.3%

Shaders

1,792

2,048 +14.3%

TMUs

112

128 +14.3%

ROPs

32

64 +100.0%

Compute Units

28

—

Clocks

Base Clock

—

1127 MHz

Boost Clock

—

1216 MHz

GPU Clock

800 MHz

—

Memory Clock

1250 MHz 5 Gbps effective

1753 MHz 7 Gbps effective

Memory

Memory Size

3 GB

4 GB

VRAM (MB)

3,072

4,096 +33.3%

Memory Type

GDDR5

GDDR5

Memory Bus

384 bit

256 bit

Bandwidth

240.0 GB/s

224.4 GB/s

Cache

L1 Cache

16 KB (per CU)

48 KB (per SMM)

L2 Cache

768 KB

2 MB

Performance

Pixel Rate

25.60 GPixel/s

77.82 GPixel/s

Texture Rate

89.60 GTexel/s

155.6 GTexel/s

FP32 (TFLOPS)

2.867 TFLOPS

4.981 TFLOPS

FP64 (TFLOPS)

716.8 GFLOPS (1:4)

155.6 GFLOPS (1:32)

Power

TDP

200 W

165 W

TDP (W)

200

165 -17.5%

Suggested PSU

550 W

450 W

Power Connectors

2x 6-pin

2x 6-pin

Architecture

Architecture

GCN 1.0

Maxwell 2.0

GPU Name

Tahiti

GM204

Generation

Southern Islands (HD 7900)

GeForce 900

Process Size

28 nm

28 nm

Transistors

4,313 million

5,200 million

Die Size

352 mm²

398 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

13.1M / mm²

API Support

DirectX

12 (11_1)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

3.0

CUDA

—

5.2

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

278 mm 10.9 inches

267 mm 10.5 inches

Height

111 mm 4.4 inches

111 mm 4.4 inches

Outputs

1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2

1x DVI1x HDMI 2.03x DisplayPort 1.2

Bus Interface

PCIe 3.0 x16

PCIe 3.0 x16

Other

Launch Price

449 USD

549 USD

Production

End-of-life

End-of-life

Predecessor

Northern Islands

GeForce 700

Successor

Sea Islands

GeForce 10

View Radeon HD 7950 Details View GeForce GTX 980 Details