GPU Comparison
RADEON
AMD Radeon R7 250
CORE STATE
Cape Verde
VRAM
1024 MB
CLOCK SPEED
—
TDP
55 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
GEFORCE
Quadro K620
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R7 250
Quadro K620
Core Specs
Shading Units
512
384
-25.0%
Shaders
512
384
-25.0%
TMUs
32
24
-25.0%
ROPs
16
16
0.0%
Compute Units
8
—
Clocks
Base Clock
—
1058 MHz
Boost Clock
—
1124 MHz
GPU Clock
925 MHz
—
Memory Clock
900 MHz
1800 Mbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
DDR3
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
28.80 GB/s
28.80 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
256 KB
2 MB
Performance
Pixel Rate
14.80 GPixel/s
17.98 GPixel/s
Texture Rate
29.60 GTexel/s
26.98 GTexel/s
FP32 (TFLOPS)
947.2 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
59.20 GFLOPS (1:16)
26.98 GFLOPS (1:32)
Power
TDP
55 W
45 W
TDP (W)
55
45
-18.2%
Suggested PSU
250 W
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 1.0
Maxwell
GPU Name
Cape Verde
GM107
Generation
Volcanic Islands
(R7 200)
Quadro Kepler
(Kx200)
Process Size
28 nm
28 nm
Transistors
1,500 million
1,870 million
Die Size
123 mm²
148 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
12.6M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
5.0
Shader Model
6.5 (5.1)
6.7 (5.1)
Physical
Slot Width
Single-slot
Single-slot
Length
168 mm
6.6 inches
160 mm
6.3 inches
Height
—
69 mm
2.7 inches
Outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Sea Islands
Quadro Fermi
Successor
Pirate Islands
Quadro Maxwell