GPU Comparison
RADEON
AMD Radeon HD 7950
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
Quadro K4000M
CORE STATE
GK104
VRAM
4 GB
CLOCK SPEED
601 MHz
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7950
Quadro K4000M
Core Specs
Shading Units
1,792
960
-46.4%
Shaders
1,792
960
-46.4%
TMUs
112
80
-28.6%
ROPs
32
32
0.0%
Compute Units
28
—
Clocks
Base Clock
—
601 MHz
Boost Clock
—
601 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
700 MHz
2.8 Gbps effective
Memory
Memory Size
3 GB
4 GB
VRAM (MB)
3,072
4,096
+33.3%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
256 bit
Bandwidth
240.0 GB/s
89.60 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
512 KB
Performance
Pixel Rate
25.60 GPixel/s
12.02 GPixel/s
Texture Rate
89.60 GTexel/s
48.08 GTexel/s
FP32 (TFLOPS)
2.867 TFLOPS
1,153.9 GFLOPS
FP64 (TFLOPS)
716.8 GFLOPS (1:4)
48.08 GFLOPS (1:24)
Power
TDP
200 W
100 W
TDP (W)
200
100
-50.0%
Suggested PSU
550 W
—
Power Connectors
2x 6-pin
None
Architecture
Architecture
GCN 1.0
Kepler
GPU Name
Tahiti
GK104
Generation
Southern Islands
(HD 7900)
Quadro Kepler-M
(Kx000M)
Process Size
28 nm
28 nm
Transistors
4,313 million
3,540 million
Die Size
352 mm²
294 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.0M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1 (1.2)
3.0
CUDA
—
3.0
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Dual-slot
MXM Module
Length
278 mm
10.9 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Other
Launch Price
449 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Quadro Fermi-M
Successor
Sea Islands
Quadro Maxwell-M