NVIDIA GeForce GTX 980 vs AMD Radeon HD 7950 Boost
GPU Specs Compare
Graphics Card
Release Date
Sep 2014
Jun 2012
Generation
GeForce 900
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1127 MHz
850 MHz
Boost Clock
1216 MHz
925 MHz
Memory Clock
1753 MHz
1250 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
224.4GB/s
240.0GB/s
Render Config
Shading Units
2048
1792
TMUs
128
112
ROPs
64
32
L1 Cache
48 KB (per SMM)
16 KB (per CU)
L2 Cache
2 MB
768 KB
Compute Units
-
28
Theoretical Performance
Pixel Rate
77.82 GPixel/s
29.60 GPixel/s
Texture Rate
155.6 GTexel/s
103.6 GTexel/s
FP32 (float)
4.981 TFLOPS
3.315 TFLOPS
FP64 (double)
155.6 GFLOPS
828.8 GFLOPS
Graphics Processor
GPU Name
GM204
Tahiti
GPU Variant
GM204-400-A1
Tahiti PRO2(215-0821282)
Architecture
Maxwell 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5.2 billion
4.313 billion
Die Size
398 mm²
352 mm²
Board Design
TDP
165W
200W
Suggested PSU
450 W
550 W
Outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
2x 6-pin
2x 6-pin
Graphics Features
DirectX
12 (12_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.3
1.2
CUDA
5.2
-
Shader Model
6.4
5.1