GPU Comparison

A

AMD

RADEON

AMD Radeon HD 7970

CORE STATE Tahiti

VRAM 3 GB

CLOCK SPEED —

TDP 250 W

BUS WIDTH 384 bit

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2012

VS

A

AMD

RADEON

Radeon RX 7900 XTX

CORE STATE Navi 31

VRAM 24 GB

CLOCK SPEED 2498 MHz

TDP 355 W

BUS WIDTH 384 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 5 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

34,541

189,573

3dmark_3dmark_steel_nomad_dx12

N/A

6,841

geekbench_vulkan

N/A

192,597

passmark_directx_10

N/A

166

passmark_directx_11

N/A

356

passmark_directx_12

N/A

131

passmark_directx_9

N/A

330

passmark_g2d

N/A

1,267

passmark_g3d

N/A

31,238

passmark_gpu_compute

N/A

17,689

DETAILED SPECIFICATIONS

SPECIFICATION

HD 7970

RX 7900 XTX

Core Specs

Shading Units

2,048

6,144 +200.0%

Shaders

2,048

6,144 +200.0%

TMUs

128

384 +200.0%

ROPs

32

192 +500.0%

Compute Units

32

96 +200.0%

Clocks

Base Clock

—

1929 MHz

Boost Clock

—

2498 MHz

GPU Clock

925 MHz

—

Game Clock

—

2365 MHz

Shader Clock

—

2269 MHz

Memory Clock

1375 MHz 5.5 Gbps effective

2500 MHz 20 Gbps effective

Memory

Memory Size

3 GB

24 GB

VRAM (MB)

3,072

24,576 +700.0%

Memory Type

GDDR5

GDDR6

Memory Bus

384 bit

384 bit

Bandwidth

264.0 GB/s

960.0 GB/s

Cache

L1 Cache

16 KB (per CU)

256 KB per Array

L2 Cache

768 KB

6 MB

L3 Cache

—

96 MB

L0 Cache

—

64 KB per WGP

Performance

Pixel Rate

29.60 GPixel/s

479.6 GPixel/s

Texture Rate

118.4 GTexel/s

959.2 GTexel/s

FP32 (TFLOPS)

3.789 TFLOPS

61.39 TFLOPS

FP64 (TFLOPS)

947.2 GFLOPS (1:4)

1.918 TFLOPS (1:32)

FP16 (TFLOPS)

—

122.8 TFLOPS (2:1)

AI/RT

RT Cores

—

96

Matrix Cores

—

192

Power

TDP

250 W

355 W

TDP (W)

250

355 +42.0%

Suggested PSU

600 W

750 W

Power Connectors

1x 6-pin + 1x 8-pin

2x 8-pin

Architecture

Architecture

GCN 1.0

RDNA 3.0

GPU Name

Tahiti

Navi 31

Codename

—

Plum Bonito

Generation

Southern Islands (HD 7900)

Navi III (RX 7000)

Process Size

28 nm

5 nm

Transistors

4,313 million

57,700 million

Die Size

352 mm²

529 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

109.1M / mm²

AMD MCM

GCD Transistors

—

45,400 million

GCD Die Size

—

304.35 mm²

MCD Transistors

—

2,050 million x6

API Support

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

2.2

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

275 mm 10.8 inches

287 mm 11.3 inches

Height

111 mm 4.4 inches

110 mm 4.3 inches

Outputs

1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2

1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C

Bus Interface

PCIe 3.0 x16

PCIe 4.0 x16

Other

Launch Price

549 USD

999 USD

Production

End-of-life

End-of-life

Predecessor

Northern Islands

Navi II

Successor

Sea Islands

Navi IV

View Radeon HD 7970 Details View Radeon RX 7900 XTX Details