GPU Comparison

A

AMD

RADEON

AMD Radeon HD 6850 X2

CORE STATE Barts

VRAM 2 GB

CLOCK SPEED —

TDP 254 W

BUS WIDTH 256 bit

ARCHITECTURE TeraScale 2

nm

PROCESS 40 nm

LAUNCH DATE 2011

VS

NVIDIA

GEFORCE

RTX A4000

CORE STATE GA104

VRAM 16 GB

CLOCK SPEED 1560 MHz

TDP 140 W

BUS WIDTH 256 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

geekbench_opencl

3,977

121,988

3dmark_3dmark_steel_nomad_dx12

N/A

2,604

geekbench_vulkan

N/A

111,712

passmark_directx_10

N/A

126

passmark_directx_11

N/A

158

passmark_directx_12

N/A

72

passmark_directx_9

N/A

240

passmark_g2d

N/A

1,024

passmark_g3d

N/A

19,459

passmark_gpu_compute

N/A

9,760

DETAILED SPECIFICATIONS

SPECIFICATION

HD 6850 X2

RTX A4000

Core Specs

Shading Units

960

6,144 +540.0%

Shaders

960

6,144 +540.0%

TMUs

48

192 +300.0%

ROPs

32

96 +200.0%

Compute Units

12

—

SM Count

—

48

Clocks

Base Clock

—

735 MHz

Boost Clock

—

1560 MHz

GPU Clock

800 MHz

—

Memory Clock

1050 MHz 4.2 Gbps effective

1750 MHz 14 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

256 bit

Bandwidth

134.4 GB/s

448.0 GB/s

Cache

L1 Cache

8 KB (per CU)

128 KB (per SM)

L2 Cache

512 KB

4 MB

Performance

Pixel Rate

25.60 GPixel/s

149.8 GPixel/s

Texture Rate

38.40 GTexel/s

299.5 GTexel/s

FP32 (TFLOPS)

1.536 TFLOPS

19.17 TFLOPS

FP64 (TFLOPS)

—

299.5 GFLOPS (1:64)

FP16 (TFLOPS)

—

19.17 TFLOPS (1:1)

AI/RT

RT Cores

—

48

Tensor Cores

—

192

Power

TDP

254 W

140 W

TDP (W)

254

140 -44.9%

Suggested PSU

600 W

300 W

Power Connectors

2x 8-pin

1x 6-pin

Architecture

Architecture

TeraScale 2

Ampere

GPU Name

Barts

GA104

Generation

Northern Islands (HD 6800)

Workstation Ampere (Ax000)

Process Size

40 nm

8 nm

Transistors

1,700 million

17,400 million

Die Size

255 mm²

392 mm²

Foundry

TSMC

Samsung

Density

6.7M / mm²

44.4M / mm²

API Support

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

3.0

CUDA

—

8.6

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

Single-slot

Length

—

241 mm 9.5 inches

Height

—

112 mm 4.4 inches

Outputs

2x DVI1x HDMI 1.3a1x DisplayPort 1.1

4x DisplayPort 1.4a

Bus Interface

PCIe 2.0 x16

PCIe 4.0 x16

Other

Production

End-of-life

End-of-life

Predecessor

Evergreen

Quadro Turing

Successor

Southern Islands

Workstation Ada

View Radeon HD 6850 X2 Details View RTX A4000 Details