NVIDIA GeForce GTX 780 6 GB vs AMD Radeon HD 7950 Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Sep 2013
Mar 2013
Generation
GeForce 700
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
863 MHz
—
Boost Clock
902 MHz
—
Memory Clock
1502 MHz
1250 MHz
Memory
Memory Size
6GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
288.4GB/s
240.0GB/s
Render Config
Shading Units
2304
1792
TMUs
192
112
ROPs
48
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
768 KB
Compute Units
—
28
Theoretical Performance
Pixel Rate
43.30 GPixel/s
25.60 GPixel/s
Texture Rate
173.2 GTexel/s
89.60 GTexel/s
FP32 (float)
4.156 TFLOPS
2.867 TFLOPS
FP64 (double)
173.2 GFLOPS
716.8 GFLOPS
Graphics Processor
GPU Name
GK110B
Tahiti
GPU Variant
GK110-301-B1
Tahiti PRO(215-0821056)
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
4.313 billion
Die Size
561 mm²
352 mm²
Board Design
TDP
250W
200W
Suggested PSU
600 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.1
1.2
CUDA
3.5
—
Shader Model
5.1
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.