GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GTX 960 OEM
CORE STATE
GM204
VRAM
3 GB
CLOCK SPEED
1038 MHz
TDP
—
BUS WIDTH
192 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2015
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTX 960 OEM
Core Specs
Shading Units
640
1,280
+100.0%
Shaders
640
1,280
+100.0%
TMUs
40
80
+100.0%
ROPs
16
48
+200.0%
Compute Units
10
—
Clocks
Base Clock
—
924 MHz
Boost Clock
—
1038 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
4 GB
3 GB
VRAM (MB)
4,096
3,072
-25.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
96.00 GB/s
120.3 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
1536 KB
Performance
Pixel Rate
20.72 GPixel/s
49.82 GPixel/s
Texture Rate
51.80 GTexel/s
83.04 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
2.657 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
83.04 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
—
TDP (W)
50
—
Suggested PSU
250 W
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell 2.0
GPU Name
Polaris 23
GM204
Generation
Polaris
(RX 600)
GeForce 900
Process Size
14 nm
28 nm
Transistors
2,200 million
5,200 million
Die Size
103 mm²
398 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
13.1M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.2
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
Dual-slot
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x HDMI 2.03x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 700
Successor
Vega
GeForce 10