GPU Comparison
GEFORCE
NVIDIA GB10
CORE STATE
GB20B
VRAM
128 GB
CLOCK SPEED
2418 MHz
TDP
140 W
BUS WIDTH
256 bit
ARCHITECTURE
Blackwell 2.0
PROCESS
5 nm
LAUNCH DATE
2025
VS
GEFORCE
Tesla K20Xm
CORE STATE
GK110
VRAM
6 GB
CLOCK SPEED
—
TDP
235 W
BUS WIDTH
384 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
GB10
Tesla K20Xm
Core Specs
Shading Units
6,144
2,688
-56.3%
Shaders
6,144
2,688
-56.3%
TMUs
384
224
-41.7%
ROPs
48
48
0.0%
SM Count
48
—
Clocks
Base Clock
1665 MHz
—
Boost Clock
2418 MHz
—
GPU Clock
—
732 MHz
Memory Clock
1067 MHz
8.5 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
128 GB
6 GB
VRAM (MB)
131,072
6,144
-95.3%
Memory Type
LPDDR5X
GDDR5
Memory Bus
256 bit
384 bit
Bandwidth
273.2 GB/s
249.6 GB/s
Cache
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
1536 KB
Performance
Pixel Rate
116.1 GPixel/s
40.99 GPixel/s
Texture Rate
928.5 GTexel/s
164.0 GTexel/s
FP32 (TFLOPS)
29.71 TFLOPS
3.935 TFLOPS
FP64 (TFLOPS)
464.3 GFLOPS (1:64)
1,311.7 GFLOPS (1:3)
FP16 (TFLOPS)
29.71 TFLOPS (1:1)
—
AI/RT
RT Cores
48
—
Tensor Cores
384
—
Power
TDP
140 W
235 W
TDP (W)
140
235
+67.9%
Suggested PSU
300 W
550 W
Power Connectors
None
—
Architecture
Architecture
Blackwell 2.0
Kepler
GPU Name
GB20B
GK110
Generation
Server Blackwell
(Bxx)
Tesla Kepler
(Kxx)
Process Size
5 nm
28 nm
Transistors
—
7,080 million
Die Size
—
561 mm²
Foundry
TSMC
TSMC
Density
—
12.6M / mm²
API Support
DirectX
—
12 (11_0)
OpenGL
—
4.6
Vulkan
—
1.2.175
OpenCL
3.0
3.0
CUDA
12.1
3.5
Shader Model
—
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
150 mm
5.9 inches
267 mm
10.5 inches
Height
51 mm
2 inches
—
Outputs
1x HDMI
No outputs
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Other
Launch Price
3,999 USD
7,699 USD
Production
Active
End-of-life
Predecessor
Server Hopper
Tesla Fermi
Successor
Server Rubin
Tesla Maxwell