NVIDIA GeForce GTX 870M vs AMD Radeon HD 6970
GPU · Specs Compare
Graphics Card
Release Date
Mar 2014
Dec 2010
Generation
GeForce 800M
Northern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 2.0 x16
Clock Speeds
Base Clock
941 MHz
—
Boost Clock
967 MHz
—
Memory Clock
1250 MHz
1375 MHz
Memory
Memory Size
3GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
256bit
Bandwidth
120.0GB/s
176.0GB/s
Render Config
Shading Units
1344
1536
TMUs
112
96
ROPs
24
32
L1 Cache
16 KB (per SMX)
8 KB (per CU)
L2 Cache
384 KB
512 KB
Compute Units
—
24
Theoretical Performance
Pixel Rate
27.08 GPixel/s
28.16 GPixel/s
Texture Rate
108.3 GTexel/s
84.48 GTexel/s
FP32 (float)
2.599 TFLOPS
2.703 TFLOPS
FP64 (double)
108.3 GFLOPS
675.8 GFLOPS
Graphics Processor
GPU Name
GK104
Cayman
GPU Variant
N15E-GT-A2
Cayman XT(215-0807007)
Architecture
Kepler
TeraScale 3
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
3.54 billion
2.64 billion
Die Size
294 mm²
389 mm²
Board Design
TDP
100W
250W
Outputs
No outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 (11_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.1
N/A
CUDA
3.0
—
Shader Model
5.1
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.