Home GPU Comparison AMD Radeon R7 265X OEM vs ATI Radeon HD 4850 X2

AMD Radeon R7 265X OEM vs ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM and 512MB VRAM Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265X OEM 's Advantages
Released 5 years and 9 months late
Boost Clock925MHz
Larger VRAM bandwidth (179.2GB/s vs 63.68GB/s)
480 additional rendering cores
Lower TDP (150W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R7 265X OEM +136%
2.368 TFLOPS
Radeon HD 4850 X2
1 TFLOPS
VS

Graphics Card

Aug 2014
Release Date
Nov 2008
Volcanic Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1400 MHz
Memory Clock
995 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
179.2GB/s
Bandwidth
63.68GB/s

Render Config

-
SM Count
-
20
Compute Units
10
1280
Shading Units
800
80
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB

Theoretical Performance

29.60 GPixel/s
Pixel Rate
10.00 GPixel/s
74.00 GTexel/s
Texture Rate
25.00 GTexel/s
-
FP16 (half)
-
2.368 TFLOPS
FP32 (float)
1000 GFLOPS
148.0 GFLOPS
FP64 (double)
200.0 GFLOPS

Graphics Processor

Curacao
GPU Name
R700
Curacao PRO (215-0848000)
GPU Variant
R700 PRO (215-0669065)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
2.8 billion
Transistors
0.956 billion
212 mm²
Die Size
256 mm²

Board Design

150W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
4x DVI 1x S-Video
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
-
5.1
Shader Model
4.1

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