Home GPU Comparison NVIDIA GeForce GTX TITAN Z vs AMD Radeon HD 6870 X2

NVIDIA GeForce GTX TITAN Z vs AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX TITAN Z and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX TITAN Z 's Advantages
Released 2 years and 10 months late
Boost Clock876MHz
More VRAM (6GB vs 1GB)
Larger VRAM bandwidth (336.0GB/s vs 134.4GB/s)
1760 additional rendering cores
AMD Radeon HD 6870 X2 's Advantages
Lower TDP (300W vs 375W)

Score

Benchmark

FP32 (float)
GeForce GTX TITAN Z +150%
5.046 TFLOPS
Radeon HD 6870 X2
2.016 TFLOPS
VS

Graphics Card

May 2014
Release Date
Jul 2011
GeForce 700
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

705 MHz
Base Clock
-
876 MHz
Boost Clock
-
1750 MHz
Memory Clock
1050 MHz

Memory

6GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
336.0GB/s
Bandwidth
134.4GB/s

Render Config

-
SM Count
-
-
Compute Units
14
2880
Shading Units
1120
240
TMUs
56
48
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
1536 KB
L2 Cache
512 KB

Theoretical Performance

52.56 GPixel/s
Pixel Rate
28.80 GPixel/s
210.2 GTexel/s
Texture Rate
50.40 GTexel/s
-
FP16 (half)
-
5.046 TFLOPS
FP32 (float)
2.016 TFLOPS
1.682 TFLOPS
FP64 (double)
-

Graphics Processor

GK110B
GPU Name
Barts
GK110-350-B1
GPU Variant
Barts XT (215-0798000)
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
7.08 billion
Transistors
1.7 billion
561 mm²
Die Size
255 mm²

Board Design

375W
TDP
300W
750 W
Suggested PSU
700 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
2x 8-pin
Power Connectors
-

Graphics Features

12 (11_1)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.5
CUDA
-
5.1
Shader Model
5.0

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