GPUs

Apple 64-Core M1 Ultra vs NVIDIA RTX PRO 4000 Blackwell SFF Full Specs

8,192 Shaders
1.3GHz
8,960 Shaders
1.34GHz
Shared Memory819.2GB/sLPDDR5
24GB GDDR7432GB/s
··
21.23 TFLOPS
··
23.96 TFLOPS
Form Factor
iGPU
Form Factor
PCIe Card
TDP
Shared
TDP
70W

64-Core M1 Ultra64-Core M1 Ultra21.23 TFLOPSFP16
x1
RTX PRO 4000 Blackwell SFFRTX PRO 4000 Blackwell SFF766.7 TFLOPSFP4 Tensor Sparse
x36.11

Clock Speed
··
Clock Speed
···
Peak OPS
21.23 TFLOPSFP16
Peak OPS
766.7 TFLOPSFP4 Tensor Sparse
-
Tensor FP4
383.3 TFLOPS
FP4 Tensor Sparse
766.7 TFLOPS
-
Tensor FP8-16
191.7 TFLOPS
FP8-16 Tensor Sparse
383.3 TFLOPS
Tensor FP8-32
95.84 TFLOPS
FP8-32 Tensor Sparse
191.7 TFLOPS
-
Tensor FP16-16
95.84 TFLOPS
FP16-16 Tensor Sparse
191.7 TFLOPS
Tensor FP16-32
47.92 TFLOPS
FP16-32 Tensor Sparse
95.84 TFLOPS
-
BF16
23.96 TFLOPS
Tensor BF16
47.92 TFLOPS
BF16 Tensor Sparse
95.84 TFLOPS
Tensor TF32
-
Tensor TF32
23.96 TFLOPS
FP32
21.23 TFLOPS
FP32
23.96 TFLOPS
-
FP64
374.4 GFLOPS
-
Tensor INT8
191.7 TOPS
Ray
-
Ray
72.66 TOPS
Pixel Rate
331.8 GPixel/s
Pixel Rate
128.4 GPixel/s
Texture Rate
663.6 GTexel/s
Texture Rate
374.4 GTexel/s

Shaders
8,192 Shaders
Shaders
8,960 Shaders
TMUs
512 TMUs
TMUs
280 TMUs
ROPs
256 ROPs
ROPs
96 ROPs
Tensor Cores
-
Tensor Cores
280 T-Cores
RT Cores
-
RT Cores
70 RT-Cores
EUs
1,024 EUs
SMs
70 SMs

Base Clock
-
Base Clock
790MHz
Boost Clock
1.3GHz
Boost Clock
1.34GHz

L2 Cache
8.2MB shared
L2 Cache
49.1MB shared

Shared MemoryLPDDR5
24GB GDDR7
Memory Bus
1024-bit
Memory Bus
192-bit
Memory Speed
6.4GT/s
Memory Speed
18GT/s
Memory Bandwidth
819.2GB/s
Memory Bandwidth
432GB/s
ECC
-
ECC
Yes

TDP
Shared
TDP
70W

Multi-Monitor
5
Multi-Monitor
4
HDCP
-
HDCP
HDCP 2.3

-
4x DisplayPort 2.1

Encoder Model
4x Apple Media Engine 2
Encoder Model
2x NVENC 9

Decoder Model
2x Apple Media Engine 2
Decoder Model
2x NVDEC 6

Form Factor
iGPU
Form Factor
PCIe Card
PCIe
-
PCIe
1-Slots
-
Height
69 mm (2.72")
Width
167 mm (6.58")
Depth
20 mm (0.79")
Cooling
Passive
-
Cooling
Blower
1x Fan

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
M1 Ultra branding
Branding
RTX branding
Codename
G13D
Codename
NV193
Chip Variant
-
Chip Variant
GB203-200-A1
Market Segment
Workstation
Market Segment
Workstation
Release Date
Mar 8, 2022
Release Date
Aug 11, 2025

Foundry
TSMC
Foundry
TSMC
Fabrication Node
N5
Fabrication Node
4NP
Die Size
865mm²
Die Size
378mm²
Transistor Count
114 Billion
Transistor Count
45.6 Billion
Transistor Density
132 MTr/mm²
Transistor Density
120.6 MTr/mm²

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