AMD Radeon HD 7970 vs NVIDIA Tesla K40c
GPU · Specs Compare
Graphics Card
Release Date
Jan 2012
Oct 2013
Generation
Southern Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1502 MHz
Base Clock
—
745 MHz
Boost Clock
—
876 MHz
Memory
Memory Size
3GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
264.0GB/s
288.4GB/s
Render Config
Compute Units
32
—
Shading Units
2048
2880
TMUs
128
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
1536 KB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
52.56 GPixel/s
Texture Rate
118.4 GTexel/s
210.2 GTexel/s
FP32 (float)
3.789 TFLOPS
5.046 TFLOPS
FP64 (double)
947.2 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Tahiti
GK180
GPU Variant
Tahiti XT(215-0821060)
GK180-890-A1
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
7.08 billion
Die Size
352 mm²
561 mm²
Board Design
TDP
250W
245W
Suggested PSU
600 W
550 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1 (1.2)
3.0
Vulkan
1.2.170
1.1
Shader Model
6.5 (5.1)
5.1
CUDA
—
3.5
Benchmark
3DMark Time Spy
2,310
—
3DMark Time Spy Extreme
1,209
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.